Overview The Heavy-Duty Stud (HDS ) Framing System is a high-performance, costeffective, multipurpose, heavy-duty framing stud for headers, jambs, posts and built-up tube truss chords and webs. The superior strength and carrying capacity of the HDS means higher performance with fewer members. It means eliminating box beam headers, nesting track and stud for posts and jambs and eliminating multi-member, built-up truss chords and webs. It also means improved finish quality and labor savings by eliminating excessive material and screw head buildup around doors and windows. The HDSC header bracket is the perfect complement to the HDS framing system. This simple, yet innovative header bracket turns curtain wall header installation from a two-man job into a one-man job. Since all the fasteners are located within the wall cavity, this unique prepunched clip also eliminates fastener head buildup that can create finishing challenges. Let the light gauge framing experts at ClarkDietrich Engineering Services help you incorporate this cutting-edge framing assembly into your next project. For free HDS Preliminary Sizing, download and complete the HDS Preliminary Sizing Sheet from www.. You may also contact us at 77-32-3206. HDS replaces built-up curtain wall headers HDS replaces load-bearing box beam headers HDS replaces built-up or tube truss chords HDS replaces or reduces jambs and posts Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information. 60 Heavy- Duty Stud ( HDS) Framing System
61 Heavy- Duty Stud ( HDS) Framing System Overview The highly innovative multipurpose HDS Framing System provides cost-effective, member-reducing framing solutions for headers, jambs, posts and heavy-duty, built-up tube truss chords and webs. HDS 1-1/" 1" 2-1/4" Applications Curtain wall headers, jambs and sills Drywall headers and jambs Load-bearing jambs Trusses Shear wall posts Heavily loaded or long-span wall studs Any other application involving nested stud and track Construction Advantages Outstanding bending strength in two directions Reduces installation time by 50% Eliminates box beam header assembly Reduces material and labor costs up to 50% HDS can be screw-attached from either side Eliminates stud-to-track nesting for post, header and jamb studs Openings up to 15' wide Eliminates multi-member builtup truss chords and webs Eliminates excessive bridging for load-bearing walls and posts Improves drywall finishing around doors and windows; no screw head buildup Superior axial strength HDSC 3-5/" or 4" 3" 5-1/2" 6" or " 3-1/2" 3" 3-1/2" 5-7/" 7-7/" 3-1/" 3-1/" 2" 2" HDSC clip is also available to fit 3-1/2" flange members. 3-1/" 2" Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information.
A H D S S e c t i o n P r o p e r t i e s Web C B Web A B C 3-5/" 3" 1-1/" 3/4" 4" 3" 1-1/" 3/4" 5-1/2" 3-1/2" 1" 3/4" 6" 3" 2-1/4" 3/4" " 3" 2-1/4" 3/4" Web size Ga Mils Design Min. delivered Gross Section Properties (Unperforated) Torsional Properties Fy thickness thickness (ksi) Area Ix Sx Rx Iy xbar Sy Ry Jx00 Cw Xo Ro Wt (lb/ft) Beta (in 2 ) (in 4 ) (in 3 ) (in 4 ) (in 3 ) (in 4 ) (in 6 ) 20 33 33 0.0346 0.032 0.445 1.52 0.34 0.515 1.44 0.631 1.426 0.405 1. 0.17 4.624-3.45 3.57 0.224 1 43 33 0.0451 0.042 0.574 1.5 1.1 0.661 1.444 0.05 1.4 0.5 1. 0.3 5.75-3.43 3.52 0.223 3-5/ 54 50 0.0566 0.053 0.715 2.43 1.43 0.1 1.441 0.0 1.406 0.632 1.177 0.764 6.4-3.40 3.46 0.222 6 50 0.0713 0.0677 0. 3.02 1.2 1.00 1.436 1.2 1.32 0.770 1. 1.503.151-3.476 3.3 0.221 7 50 0.17 0.066 1.23 4.22 2.520 1.30 1.426 1.645 1.367 1.03 1.152 4.271.420-3.44 3.06 0.220 20 33 33 0.0346 0.032 0.45 1.56 1.175 0.5 1.601 0.656 1.36 0.4 1. 0.13 5.6-3.422 3.63 0.254 1 43 33 0.0451 0.042 0.51 2.01 1.50 0.754 1.5 0.3 1.376 0.523 1. 0.400 6.425-3.41 3.56 0.254 4 54 50 0.0566 0.053 0.736 2.50 1.6 0.34 1.54 1.031 1.365 0.641 1.13 0.77 7.715-3.4 3.4 0.253 6 50 0.0713 0.0677 0. 3. 2.307 1.154 1.5 1.261 1.351 0.72 1.175 1.54.15-3.40 3.40 0.251 7 50 0.17 0.066 1.277 4.35 3.13 1.52 1.57 1.7 1.326 1.056 1.15 4.403.77-3.37 3.05 0.251 20 33 33 0.0346 0.032 0.541 1.4 2.72 0.2 2.246 1.04 1.462 0.51 1.32 0.2.34-3.62 4.4 0.347 1 43 33 0.0451 0.042 0.6 2.3 3.5 1.276 2.242 1.340 1.452 0.661 1.35 0.472 13.07-3.621 4.47 0.346 5-1/2 54 50 0.0566 0.053 0.70 2.6 4.35 1.55 2.23 1.652 1.440 0.13 1.37 0.30 15.60-3.6 4.46 0.346 6 50 0.0713 0.0677 1.04 3.6 5.37 1.63 2.232 2.027 1.425 0.4 1.36 1.34 1.075-3.605 4.455 0.345 7 50 0.17 0.066 1.51 5.17 7.40 2.724 2.221 2.76 1.3 1.350 1.350 5.235 25.05-3.570 4.4 0.346 20 33 33 0.0346 0.032 0.6 2.0 3.034 1.0 2.230 0.3 1.441 0.644 1.276 0.244 24.60-3.636 4.452 0.333 1 43 33 0.0451 0.042 0.7 2.6 3.07 1.302 2.226 1.273 1.433 0.24 1.271 0.533 31.427-3.633 4.446 0.332 6 54 50 0.0566 0.053 0.4 3.35 4.56 1.61 2.222 1.573 1.424 1.0 1.265 1.052 3.00-3.630 4.440 0.332 6 50 0.0713 0.0677 1.226 4.17 6.023 2.00 2.2 1.3 1.4 1.24 1.257 2.076 45.721-3.626 4.432 0.331 7 50 0.17 0.066 1.722 5.6.30 2.73 2.206 2.662 1.30 1.707 1.243 5.36 60.0-3.602 4.403 0.331 20* 33 33 0.0346 0.032 0.67 2.31 6.134 1.533 3.005 1.2 1.24 0.665 1.25 0.272 33.350-3.4 4.725 0.47 1 43 33 0.0451 0.042 0.7 2. 7.0 1.77 3.001 1.43 1.26 0.51 1.20 0.54 42.201-3.406 4.7 0.47 54 50 0.0566 0.053 1.07 3.73.43 2.461 2.6 1.77 1.277 1.050 1.274 1.173 51.431-3.3 4.706 0.47 6 50 0.0713 0.0677 1.36 4.66.230 3.05 2. 2.13 1.265 1.21 1.266 2.317 62.225-3.31 4.64 0.47 7 50 0.17 0.066 1.26 6.55 17.075 4.26 2.7 3.013 1.243 1.766 1.251 6.637 2.4-3.360 4.661 0.40 1 Ix = Gross Moment Of Inertia about x-axis. 2 Sx = Gross Section Modulus about x-axis. 3 Rx = Gross Radius of Gyration about x-axis. 4 Iy = Gross Moment Of Inertia about y-axis. 5 xbar = The distance from the web centerline to the center of gravity. 6 Sy = Gross Section Modulus about y-axis. 7 Ry = Gross Radius of Gyration about y-axis. J = St. Venant Torsion Constant. Cw = Warping Torsion Constant. Xo = Distance from shear center to the centroid along the principal x-axis. Ro = Polar Radius of Gyration about the centoidal principal axis. Beta = 1-(Xo/Ro)^2. 13 Stiffening Lip = 3/4" for all web sizes. * Indicates that h/t exceeds 200. Web stiffeners are required at bearing points. No holes in the web are permitted. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information. 62 Heavy- Duty Stud ( HDS) Framing System
63 Heavy- Duty Stud ( HDS) Framing System A Web C B Web A B C 3-5/" 3" 1-1/" 3/4" 4" 3" 1-1/" 3/4" 5-1/2" 3-1/2" 1" 3/4" 6" 3" 2-1/4" 3/4" " 3" 2-1/4" 3/4" H D S E f f e c t i v e P r o p e r t i e s a n d C a p a c i t i e s Web size 3-5/ 4 5-1/2 6 Ga Mils Fy (ksi) Design thickness Min. delivered thickness Sxe (in 3 ) Unperforated Bending Properties Perforated Bending Properties Effect. Moment of Inertia Web in Ten. Web in Comp. Web in Ten. Web in Comp. Web in Web in Mxa Sxe Mxa Ixe (in-lb) Sye Mya Sye Mya ten. Iye (in 3 ) (in-lb) Sye Mya Sye Mya comp. Iye (in 4 ) (in 3 ) (in-lb) (in 3 ) (in-lb) (in 3 ) (in-lb) (in 3 ) (in-lb) (in 4 ) (in 4 ) Lu Unperf d Vx (kips) Other Properties 20 33 33 0.0346 0.032 0.37 746 0.401 717 0.24 5 0.367 7247 0.313 6 0.243 404 0.51 0.631 0.53 3 1.03 0.54 2.05 0.2 0.3 1 43 33 0.0451 0.042 0.565 5 0.5 703 0.425 401 0.540 674 0.400 00 0.342 6753 1.1 0.05 0.741 2 1.74 0.6 3.0 0.46 0.61 54 50 0.0566 0.053 0.7 20 0.632 2136 0.535 01 0.63 20464 0.42 1704 0.42 44 1.44 0.0 0.21 2 3.3 1.02 5.77 1.02 1.3 6 50 0.0713 0.0677 0.5 2672 0.770 27606 0.733 24 0.3 27 0.603 207 0.572 177 1.2 1.2 1. 2 4.37 1.00 7.06 1.51 2.0 7 50 0.17 0.066 1.30 4505 1.03 3444 1.03 337 1.375 4525 0.20 317 0.20 26602 2.520 1.645 1.645 1 6.05 0.2.71 1.7 4.00 20 33 33 0.0346 0.032 0.456 0 0.406 025 0.26 554 0.415 1 0.344 605 0.246 453 1.074 0.656 0.542 0 0.7 0.60 2.05 0.2 0.3 1 43 33 0.0451 0.042 0.64 05 0.523 74 0.430 40 0.613 3 0.440 5 0.347 666 1.463 0.3 0.750 1.74 0.1 3.0 0.45 0.61 54 50 0.0566 0.053 0. 24420 0.641 22263 0.541 1 0.776 23240 0.542 5 0.437 1307 1.27 1.031 0.33 0 3.3 1.22 5.77 1.01 1.3 6 50 0.0713 0.0677 1.06 3220 0.72 2027 0.745 223 1.06 31 0.664 23 0.5 176 2.307 1.261 1.2 7 4.7 1.36 7.06 1.50 2.0 7 50 0.17 0.066 1.52 52437 1.056 4006 1.053 31517 1.577 56 0.05 34366 0.05 23 3.13 1.7 1.7 7 6.76 1.26.71 1.6 4.00 20 33 33 0.0346 0.032 0.706 1345 0.50 05 0.374 733 0.706 1345 0.4 63 0.315 6226 2.42 1.04 0.74 3 0.6 0.6 2.05 0.2 0.37 1 43 33 0.0451 0.042 1.041 2057 0.661 15 0.543 72 1.041 2057 0.632 45 0.44 51 3.2 1.340 1.03 2 1.54 1.20 3.47 0.44 0.60 54 50 0.0566 0.053 1.3 320 0.13 2442 0.65 20501 1.3 320 0.776 273 0.564 00 4. 1.652 1.362 3 3. 1. 6.75 0. 1.36 6 50 0.0713 0.0677 1.76 5242 0.4 356 0.1 27476 1.76 5242 0.4 3431 0.770 23051 5.356 2.027 1.0 2 5.34 2.53.40 1.46 2.06 7 50 0.17 0.066 2.724 601 1.350 56 1.3 3234 2.724 601 1.26 433 1.224 36641 7.40 2.76 2.753 1.62 3..62 1.1 3.6 20 33 33 0.0346 0.032 0.76 15 0.532 50 0.32 6505 0.76 15 0.5 153 0.275 5434 2.23 0.54 0.64 5 0.63 0.63 2.05 0.27 0.3 1 43 33 0.0451 0.042 1.150 22733 0.762 155 0.43 535 1.150 22733 0.67 76 0.34 772 3.77 1.273 0.2 4 1.41 1.24 3.0 0.43 0.61 54 50 0.0566 0.053 1.44 43377 0.27 2 0.6 61 1.44 43377 0.65 277 0.4 13 4.753 1.573 1.22 0 2.3 1.5 5.77 0.7 1.3 6 50 0.0713 0.0677 1.25 57642 1.226 40261 0.54 25573 1.25 57642 1.07 35400 0.66 20533 6.023 1.3 1.645 0 5.34 2. 7.06 1.44 2.0 7 50 0.17 0.066 2.73 2027 1.707 5770 1.42 4273 2.73 2027 1.44 5031 1.2 33607.30 2.662 2.522.5 3.0.71 1. 4.00 20* 33 33 0.0346 0.032 1.04 220 0.54 2 0.333 6570 5.05 1.076 0.703 3 0.47 2.05 0.3 1 43 33 0.0451 0.042 1.72 341 0.77 61 0.40 67 1.72 341 0.770 307 0.400 76 7.723 1.43 1.001 1 1.05 1.05 3.0 0.27 0.61 54 50 0.0566 0.053 2.20 6604 0.56 3050 0.620 154 2.20 6604 0.35 30174 0.505 152.662 1.77 1.254 0 2.0 2.0 5.77 0.62 1.3 6 50 0.0713 0.0677 2.46 217 1.265 41554 0.74 26153 2.46 217 1.237 40635 0.700 2057.230 2.13 1.60 0 4.21 3.36 7.06 0.4 2.0 7 50 0.17 0.066 4.26 0636 1.766 576 1.46 4441 4.26 0636 1.724 5451 1.4 3455 17.075 3.013 2.631. 5..71 1.4 4.00 Perf d Vx (kips) Vy (kips) Px (kips) Py (kips) 1 Sxe = Effective Section Modulus about x-axis. 2 Mxa = Allowable Moment about x-axis. 3 Sye = Effective Section Modulus about y-axis. 4 Mya = Allowable Moment about y-axis. 5 Ixe = Effective Moment of Inertia about x-axis for deflection calculations. 6 Iye = Effective Moment of Inertia about y-axis for deflection calculations. 7 Lu = Maximum unbraced length to attain Mxa. Vx = Allowable Shear for bending about x-axis. Vy = Allowable Shear for bending about y-axis. Px and Py are the allowable reactions based on web crippling with Py being for members bent about the y-axis. Px = For members having a web depth of less than " and also having a thickness less than 7mil, allowable web crippling has been determined in accordance with AISI Standard for CFS Framing Wall Stud Design - 2004. This value assumes the web resists web crippling and the HDS is nested in track having the same or greater thickness. For other members, allowable End One Flange Web Crippling is calculated in accordance with AISI NASPEC-2001 with 2004 supplement. Both calculation procedures use a bearing length of 1-1/4." Py = Allowable End One Flange Web Crippling per AISI NASPEC-2001 with 2004 supplement. This value assumes two flanges resist web crippling for a bearing length of 1-1/4." 13 Unless otherwise noted, properties are computed according to the AISI-NASPEC, 2001 with 2004 supplement. Perforated properties are based on the standard 1-1/2" x 4" oval ClarkDietrich web knockout. The knockout is centered about the web, and is spaced no less than 24" o.c. 15 Stiffening Lip = 3/4" for all web sizes. * Indicates that h/t exceeds 200. Web stiffeners are required at bearing points. No holes in the web are permitted. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information.
A l l o w a b l e H D S L i m i t i n g H e i g h t s ( f t - i n ) size Ga Mils Fy (ksi) 5psf 15psf 20psf 25psf 30psf 35psf 40psf 0 240 360 240 360 600 240 360 600 240 360 600 240 360 600 240 360 600 240 360 600 2' 2" 22' 4" 1' 6" 17' 5" 15' 3" ' " 15' 7" f 13' " ' " 13' " f ' " ' " ' " f ' 1" ' 2" ' " f ' 6" ' " ' 0" f ' 0" f ' 3" 20 33 33 25' 7" 20' 4" 17' " 15' 7" f 13' " ' " 13' 6" f ' 7" ' 7" ' 0" f ' " ' " ' 0" f ' 0" f ' 3" ' 2" f ' 2" f ' " ' 6" f ' 6" f ' 5" 24 22' 0" f 17' " 15' 6" ' " f ' 1" ' 2" ' 0" f ' 0" f ' 3" ' " f ' " f ' 7" ' 0" f ' 0" f ' 1" ' 4" f ' 4" f 7' " 7' " f 7' " f 7' 4" 31' 3" 24' " 21' " 1' 4" ' " ' 3" 17' 7" 15' 4" ' " ' 4" ' 3" ' 0" 15' 4" 13' 5" ' 4" ' 3" f ' " ' " 13' 4" f ' 2" ' 3" 1 43 33 2' 4" 22' 6" 1' " 17' 7" 15' 4" ' " ' 0" 13' " ' " ' 7" f ' " ' " 13' 4" f ' 2" ' 3" ' 4" f ' 7" ' " ' 7" f ' 1" ' 4" 24 24' " 1' " 17' 2" 15' 4" 13' 5" ' 4" 13' 4" f ' 2" ' 3" ' " f ' 4" ' 7" ' " f ' " ' 0" ' 1" f ' 1" f ' 6" ' 5" f ' 5" f ' 2" 33' 7" 26' " 23' 4" 20' " 1' 2" 15' 4" 1' " ' 6" 13' " 17' 7" 15' 4" ' " ' 6" ' 5" ' 2" 15' " 13' " ' 7" 15' 0" 13' 2" ' 1" 3-5/ 54 50 30' 7" 24' 3" 21' 2" 1' " ' 6" 13' " 17' 2" 15' 0" ' " ' 0" 13' " ' " 15' 0" 13' 2" ' 1" ' 3" ' 6" ' 6" 13' " ' " ' 1" 24 26' " 21' 2" 1' 6" ' 6" ' 5" ' 2" 15' 0" 13' 2" ' 1" 13' " ' 2" ' 3" 13' 2" ' 6" ' " ' 6" ' " ' 2" ' " ' 5" ' " 36' 4" 2' " 25' 2" 22' 6" 1' " ' 7" 20' 6" 17' " 15' 1" 1' 0" ' 7" ' 0" 17' " 15' 7" 13' 2" 17' 0" ' " ' 6" ' 3" ' 2" ' 0" 6 50 33' 0" 26' 2" 22' " 20' 6" 17' " 15' 1" 1' 7" ' 3" 13' " 17' 3" 15' 1" ' " ' 3" ' 2" ' 0" 15' 5" 13' 6" ' 4" ' " ' " ' " 24 2' " 22' " 20' 0" 17' " 15' 7" 13' 2" ' 3" ' 2" ' 0" 15' 1" 13' 2" ' 1" ' 2" ' 5" ' 5" 13' 6" ' " ' " ' " ' 3" ' 6" 40' 5" 32' 1" 2' 0" 25' 1" 21' " 1' 6" 22' " 1' " ' " 21' 2" 1' 6" 15' 7" 1' " 17' 4" ' " 1' " ' 6" 13' " 1' 1" 15' " 13' 4" 7 50 36' " 2' 2" 25' 6" 22' " 1' " ' " 20' " 1' 1" 15' 3" 1' 2" ' " ' 2" 1' 1" 15' " 13' 4" 17' 2" 15' 0" ' " ' 5" ' 4" ' 1" 24 32' 1" 25' 6" 22' 3" 1' " 17' 4" ' " 1' 1" 15' " 13' 4" ' " ' " ' 4" 15' " 13' " ' " 15' 0" 13' 1" ' 1" ' 4" ' 6" ' 7" 30' 5" 24' 2" 21' 1" 1' " ' 6" 13' " ' 6" f 15' 0" ' " ' " f 13' " ' " 13' 6" f 13' 1" ' 0" ' 6" f ' 5" ' 6" ' " f ' " f ' 0" 20 33 33 27' " 21' " 1' 2" ' 6" f 15' 0" ' " ' 4" f 13' 7" ' 6" ' " f ' " ' " ' " f ' " f ' 0" ' " f ' " f ' 6" ' 1" f ' 1" f ' 1" 24 23' 5" f 1' 2" ' " 13' 6" f 13' 1" ' 0" ' " f ' " f ' 0" ' 5" f ' 5" f ' 4" ' 7" f ' 7" f ' " ' " f ' " f ' 4" ' 3" f ' 3" f 7' " 33' " 26' " 23' 5" 20' " 1' 3" 15' 5" 1' 0" ' 7" ' 0" 17' " 15' 5" 13' 0" ' 5" f ' 6" ' 3" 15' 2" f 13' " ' 7" ' 3" f 13' 2" ' 1" 1 43 33 30' " 24' 4" 21' 3" 1' 0" ' 7" ' 0" 17' 3" 15' 1" ' " 15' 7" f ' 0" ' " ' 3" f 13' 2" ' 1" 13' 2" f ' 6" ' 7" ' 4" f ' 0" ' 1" 24 26' " 21' 3" 1' 7" ' 5" f ' 6" ' 3" ' 3" f 13' 2" ' 1" ' " f ' 3" ' 4" ' 7" f ' 6" ' " ' " f ' " f ' 3" ' 1" f ' 1" f ' " 36' 4" 2' " 25' 2" 22' 6" 1' " ' 7" 20' 5" 17' " 15' 1" 1' 0" ' 7" ' 0" 17' " 15' 7" 13' 2" 17' 0" ' " ' 6" ' 3" ' 2" ' 0" 4 54 50 33' 0" 26' 2" 22' " 20' 5" 17' " 15' 1" 1' 7" ' 3" 13' " 17' 3" 15' 1" ' " ' 3" ' 2" ' 0" 15' 5" 13' 6" ' 4" ' " ' " ' " 24 2' " 22' " 20' 0" 17' " 15' 7" 13' 2" ' 3" ' 2" ' 0" 15' 1" 13' 2" ' 1" ' 2" ' 5" ' 5" 13' 6" ' " ' " ' " ' 3" ' 6" 3' 3" 31' 2" 27' 3" 24' 4" 21' 3" 17' " 22' 1" 1' 4" ' 3" 20' 6" 17' " 15' 1" 1' 4" ' " ' 3" 1' 4" ' 0" 13' 6" 17' 7" 15' 4" ' " 6 50 35' " 2' 4" 24' " 22' 1" 1' 4" ' 3" 20' 1" 17' 7" ' " 1' " ' 3" 13' " 17' 7" 15' 4" ' " ' " ' 7" ' 3" 15' " 13' " ' " 24 31' 2" 24' " 21' 7" 1' 4" ' " ' 3" 17' 7" 15' 4" ' " ' 3" ' 3" ' 0" 15' 4" 13' 5" ' 4" ' 7" ' " ' " 13' " ' 2" ' 3" 43' " 34' " 30' 4" 27' 1" 23' " 1' " 24' 7" 21' 6" 1' 2" 22' " 1' " ' " 21' 6" 1' " 15' " 20' 5" 17' " 15' 1" 1' 6" 17' 1" ' 5" 7 50 3' " 31' 6" 27' 6" 24' 7" 21' 6" 1' 2" 22' 4" 1' 6" ' 6" 20' " 1' 2" 15' 4" 1' 6" 17' 1" ' 5" 1' 7" ' 3" 13' " 17' " 15' 6" 13' 1" 24 34' " 27' 6" 24' 1" 21' 6" 1' " 15' " 1' 6" 17' 1" ' 5" 1' 2" 15' " 13' 4" 17' 1" ' " ' 7" ' 3" ' 2" ' " 15' 6" 13' 7" ' 5" 1 Table values of 0, 240, 360 and 600 represent the allowable deflection limit. 2 Studs are checked for simple-span deflection and stress. Stress calculations are made for mid-span fully braced moment, end shear through the unperforated section, and shear moment interaction through the perforated section " away from the end bearing. 3 Wind loads are multiplied by 0.7 for deflection calculations per Section B1 of the AISI Wall Stud Design Standard except for the 5psf load which is considered an interior wall load. 4 A 1/3 stress increase is not used. 5 Limiting heights are based on continuous lateral support of each flange over the full height of the stud for lateral bracing. 6 Heights are based on steel properties only. Composite effects of sheathing were not used. 7 Check end reactions for web crippling. Cells having an f indicate the limiting height is controlled by stress. Cells having an * have h/t > 200 and thus require bearing stiffeners designed in accordance with the AISI-NASPEC, 2001 with the 2004 supplement. Perforated properties are based on the standard 1-1/2" x 4" oval ClarkDietrich web knockout. The knockout is centered about the web, and is spaced no less than 24" o.c. Yield strength of 20 and 1 gauge members is 33ksi; gauge and heavier are 50ksi. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information. 64 Heavy- Duty Stud ( HDS) Framing System
65 Heavy- Duty Stud ( HDS) Framing System A l l o w a b l e H D S L i m i t i n g H e i g h t s ( f t - i n ) size Ga Mils Fy (ksi) 5psf 15psf 20psf 25psf 30psf 35psf 40psf 0 240 360 240 360 600 240 360 600 240 360 600 240 360 600 240 360 600 240 360 600 42' 0" 33' 4" 2' 1" 26' 0" f 22' " 1' 2" 22' 6" f 20' " 17' 5" 20' 2" f 1' 2" ' 2" 1' 4" f 1' 1" 15' 3" 17' 0" f 17' 0" f ' 5" 15' " f 15' " f 13' " 20 33 33 3' 2" 30' 3" 26' 5" 22' 6" f 20' " 17' 5" 1' 6" f 1' " 15' " 17' 5" f 17' 5" ' " 15' " f 15' " f 13' " ' " f ' " f 13' 2" 13' " f 13' " f ' 7" 24 31' " f 26' 5" 23' 1" 1' 4" f 1' 1" 15' 3" 15' " f 15' " f 13' " ' 3" f ' 3" f ' " 13' 0" f 13' 0" f ' 1" ' 0" f ' 0" f ' 6" ' 3" f ' 3" f ' 0" 46' 4" 36' " 32' 2" 2' " 25' 1" 21' 2" 26' 1" 22' " 1' 3" 24' 3" 21' 2" 17' " 22' 6" f 1' " ' " 20' " f 1' " ' 0" 1' 6" f 1' 1" 15' 3" 1 43 33 42' 1" 33' 5" 2' 2" 26' 1" 22' " 1' 3" 23' " 20' " 17' 6" 21' 4" f 1' 3" ' 3" 1' 6" f 1' 1" 15' 3" 1' 0" f 17' 2" ' 6" ' " f ' 5" 13' " 24 36' " 2' 2" 25' 6" 22' 6" f 1' " ' " 1' 6" f 1' 1" 15' 3" 17' 5" f ' " ' 2" 15' " f 15' " 13' 4" ' " f ' " f ' " 13' " f 13' " f ' 1" 4' " 3' " 34' " 31' 0" 27' 1" 22' " 2' 2" 24' 7" 20' " 26' 1" 22' " 1' 3" 24' 7" 21' 6" 1' 1" 23' 4" 20' 5" 17' 2" 22' 4" 1' 6" ' 5" 6 54 50 45' 5" 36' 0" 31' 6" 2' 2" 24' 7" 20' " 25' 7" 22' 4" 1' " 23' " 20' " 17' 6" 22' 4" 1' 6" ' 5" 21' 2" 1' 6" 15' " 20' 3" 17' " ' " 24 3' " 31' 6" 27' 6" 24' 7" 21' 6" 1' 1" 22' 4" 1' 6" ' 5" 20' " 1' 1" 15' 3" 1' 6" 17' 0" ' 4" 1' 6" ' 2" 13' " 17' " 15' 6" 13' 1" 54' 1" 42' " 37' 6" 33' 6" 2' 3" 24' " 30' 5" 26' 7" 22' 5" 2' 3" 24' " 20' " 26' 7" 23' 3" 1' 7" 25' 3" 22' 1" 1' 7" 24' 2" 21' 1" 17' " 6 50 4' 1" 3' 0" 34' 1" 30' 5" 26' 7" 22' 5" 27' " 24' 2" 20' 5" 25' " 22' 5" 1' " 24' 2" 21' 1" 17' " 22' " 20' 1" ' " 21' " 1' 2" ' 2" 24 42' " 34' 1" 2' " 26' 7" 23' 3" 1' 7" 24' 2" 21' 1" 17' " 22' 5" 1' 7" ' 6" 21' 1" 1' 5" 15' 7" 20' 1" 17' 6" ' " 1' 2" ' " ' 2" 60' 4" 47' " 41' " 37' 5" 32' " 27' 7" 34' 0" 2' " 25' 0" 31' 7" 27' 7" 23' 3" 2' " 25' " 21' " 2' 2" 24' " 20' " 27' 0" 23' 7" 1' " 7 50 54' " 43' 6" 3' 0" 34' 0" 2' " 25' 0" 30' " 27' 0" 22' " 2' " 25' 0" 21' 1" 27' 0" 23' 7" 1' " 25' 7" 22' 5" 1' " 24' 6" 21' 5" 1' 1" 24 47' " 3' 0" 33' 3" 2' " 25' " 21' " 27' 0" 23' 7" 1' " 25' 0" 21' " 1' 5" 23' 7" 20' 7" 17' 4" 22' 5" 1' 7" ' 6" 21' 5" 1' " 15' " 53' 5" * 42' 5" * 37' 0" * 30' " f* 2' " * 24' 5" * 26' " f* 26' 3" * 22' 2" * 23' " f* 23' " f* 20' 7" * 21' " f* 21' " f* 1' 4" * 20' 2" f* 20' 2" f* 1' 5" * 1' " f* 1' " f* 17' 7" * 20 33 33 46' 3" f* 3' 6" * 33' " * 26' " f* 26' 3" * 22' 2" * 23' 2" f* 23' 2" f* 20' 2" * 20' " f* 20' " f* 1' " * 1' " f* 1' " f* 17' 7" * 17' 6" f* 17' 6" f* ' " * ' 4" f* ' 4" f* ' 0" * 24 37' " f* 33' " * 2' 5" * 21' " f* 21' " f* 1' 4" * 1' " f* 1' " f* 17' 7" * ' " f* ' " f* ' 4" * 15' 5" f* 15' 5" f* 15' 4" * 13' 6" f* 13' 6" f* 13' 6" f* ' " f* ' " f* ' " f* 5' " 46' 7" 40' " 36' 5" 31' " 26' " 33' 1" 2' " 24' 4" 30' 2" f 26' " 22' 7" 27' 7" f 25' 3" 21' 3" 25' 6" f 24' 0" 20' 3" 23' " f 22' " 1' 4" 1 43 33 53' 4" 42' 4" 37' 0" 33' 1" 2' " 24' 4" 2' 3" f 26' 3" 22' 2" 26' 2" f 24' 4" 20' 7" 23' " f 22' " 1' 4" 22' 1" f 21' " 1' 4" 20' " f 20' " f 17' 7" 24 46' 7" 37' 0" 32' 4" 27' 7" f 25' 3" 21' 3" 23' " f 22' " 1' 4" 21' 4" f 21' 3" 17' " 1' 6" f 1' 6" f ' " 1' 0" f 1' 0" f ' 1" ' " f ' " f 15' 4" 63' 3" 50' 3" 43' " 3' 3" 34' 3" 2' " 35' " 31' 2" 26' 3" 33' 1" 2' " 24' 4" 31' 2" 27' 2" 22' " 2' 7" 25' " 21' " 2' 3" 24' " 20' " 54 50 57' 6" 45' " 3' " 35' " 31' 2" 26' 3" 32' 4" 2' 3" 23' " 30' 1" 26' 3" 22' 2" 2' 3" 24' " 20' " 26' " 23' 6" 1' " 25' " 22' 5" 1' " 24 50' 3" 3' " 34' " 31' 2" 27' 2" 22' " 2' 3" 24' " 20' " 26' 3" 22' " 1' 4" 24' " 21' 7" 1' 2" 23' 6" 20' 6" 17' 4" 22' 5" 1' 7" ' 6" 6' 5" 54' 4" 47' 6" 42' 5" 37' 1" 31' 3" 3' 7" 33' " 2' 5" 35' " 31' 3" 26' 4" 33' " 2' 5" 24' " 32' 0" 27' " 23' 7" 30' 7" 26' " 22' 6" 6 50 62' 2" 4' 4" 43' 1" 3' 7" 33' " 2' 5" 35' 0" 30' 7" 25' " 32' 6" 2' 5" 23' " 30' 7" 26' " 22' 6" 2' 1" 25' 5" 21' 5" 27' " 24' 3" 20' 6" 24 54' 4" 43' 1" 37' " 33' " 2' 5" 24' " 30' 7" 26' " 22' 6" 2' 5" 24' " 20' " 26' " 23' 4" 1' " 25' 5" 22' 2" 1' " 24' 3" 21' 3" 17' " 76' 6" 60' " 53' 1" 47' 5" 41' 5" 34' " 43' 1" 37' " 31' " 40' 0" 34' " 2' 6" 37' " 32' " 27' " 35' " 31' 3" 26' 4" 34' 2" 2' " 25' 2" 7 50 6' 6" 55' 2" 4' 2" 43' 1" 37' " 31' " 3' 2" 34' 2" 2' " 36' 4" 31' " 26' " 34' 2" 2' " 25' 2" 32' 6" 2' 4" 23' " 31' 1" 27' 2" 22' " 24 60' " 4' 2" 42' 1" 37' " 32' " 27' " 34' 2" 2' " 25' 2" 31' " 27' " 23' 5" 2' " 26' 1" 22' 0" 2' 4" 24' " 20' " 27' 2" 23' " 20' 0" 1 Table values of 0, 240 and 360 represent the allowable deflection limit. 2 Studs are checked for simple-span deflection and stress. Stress calculations are made for mid-span fully braced moment, end shear through the unperforated section, and shear moment interaction through the perforated section " away from the end bearing. 3 Wind loads are multiplied by 0.7 for deflection calculations per Section B1 of the AISI Wall Stud Design Standard except for the 5psf load which is considered an interior wall load. 4 A 1/3 stress increase is not used. 5 Limiting heights are based on continuous lateral support of each flange over the full height of the stud for lateral bracing. 6 Heights are based on steel properties only. Composite effects of sheathing were not used. 7 Check end reactions for web crippling. Cells having an f indicate the limiting height is controlled by stress. Cells having an * have h/t > 200 and thus require bearing stiffeners designed in accordance with the AISI-NASPEC, 2001 with the 2004 supplement. Perforated properties are based on the standard 1-1/2" x 4" oval ClarkDietrich web knockout. The knockout is centered about the web, and is spaced no less than 24" o.c. Yield strength of 20 and 1 gauge members is 33ksi; gauge and heavier are 50ksi. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information.
A l l o w a b l e H D S A x i a l L o a d s ( k i p s ) 5psf 3-5/" hds s 4" hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 3.34 a 5.06 a.20 a.45 a.35 a 3.55 a 5.3 a.6 a.1 a.42 a 3.24 a 4.6 a. a.36 a.27 a 3.46 a 5.30 a.7 a.72 a.34 a 24 3.05 a 4.75 a 7.2 a.1 a. a 3.2 a 5. a.70 a.55 a.1 a 3. a 4.75 a 7.5 a.56 a 13. a 3.36 a 5.13 a.43 a.03 a 15.31 a 3.00 a 4.62 a 7.46 a.45 a 13.06 a 3.25 a 5.01 a.32 a.2 a 15.21 a 24 2.76 a 4.36 a 7.23 a.23 a.5 a 3.03 a 4.7 a. a.71 a 15.01 a 2. a 4.41 a 6.3 a.63 a.2 a 3.15 a 4.3 a 7.4 a.1 a. a 2.73 a 4.25 a 6.7 a.50 a.7 a 3.01 a 4.6 a 7.71 a.06 a.01 a 24 2.45 a 3.4 a 6.50 a.24 a.55 a 2.75 a 4.40 a 7.44 a.0 a 13.77 a 2.63 a 4.05 a 6.17 a 7.6 a.64 a 2.2 a 4.51 a 7.23 a.30 a.2 a 2.46 a 3.6 a 6.00 a 7.53 a.4 a 2.76 a 4.34 a 7.07 a. a.77 a 24 2. a 3.51 a 5.6 a 7.25 a.22 a 2.46 a 4.01 a 6.76 a.4 a.4 a 2.37 a 3.67 a 5.42 a 6.7 a.46 a 2.6 a 4.17 a 6.56 a.3 a.6 a 2.1 a 3.46 a 5.24 a 6.63 a.30 a 2.5 a 3.7 a 6.3 a.21 a.52 a 24 1.3 a 3.0 a 4.1 a 6.32 a.00 a 2. a 3.60 a 6.03 a 7.7 a.1 a 1.5 a 2.3 a 4.17 a 5.31 a 7.4 a 2.1 a 3.47 a 5.1 a 6.64 a.35 a 1.64 a 2.6 a 3. a 5.13 a 7.31 a 1. a 3.23 a 4. a 6.44 a. a 24 1.26 c 2.27 b 3.64 a 4.7 a 6.7 a 1.5 b 2.7 a 4.61 a 6.07 a.7 a 1.3 b 2.22 a 3.23 a 4.17 a 5.6 a 1.72 a 2.7 a 4. a 5.27 a 7.52 a 1.17 c 1. b 3.04 a 3. a 5.77 a 1.4 b 2.52 a 3. a 5.06 a 7.30 a 24 0.7 e 1.57 d 2.70 c 3.65 b 5.42 a 1.0 d 2.07 c 3.50 b 4.6 a 6.1 a 15psf 3-5/" hds s 4" hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 2.77 a 4.46 a 7.64 a.3 a 13.6 a 3.03 a 4.5 a.45 a.31 a 15.4 a 2.51 a 4.17 a 7.3 a.67 a 13.62 a 2.7 a 4.5 a.21 a.07 a 15.71 a 24 2.00 a 3.62 a 6.7 a.1 a 13.15 a 2.31 a 4.0 a 7.73 a.5 a 15.26 a 2.42 a 4.00 a 6. a.1 a.55 a 2.72 a 4.44 a 7.7 a.40 a.72 a 2. a 3.65 a 6.57 a.61 a.25 a 2.41 a 4. a 7.4 a. a.43 a 24 1.51 a 3.01 a 5.6 a.03 a.6 a 1.5 a 3.51 a 6. a.5 a 13.6 a 2.06 a 3.52 a 6. a 7.7 a.1 a 2.3 a 4.00 a 7.06 a.43 a 13.41 a 1.70 a 3. a 5.74 a 7.53 a.5 a 2.03 a 3.62 a 6.70 a.07 a 13.06 a 24 1.04 b 2.40 a 5.06 a 6.7 a.2 a 1.3 a 2.2 a 6.02 a.40 a.40 a 1.71 a 3.03 a 5.26 a 6.4 a.2 a 2.04 a 3.55 a 6.32 a.42 a.07 a 1.31 b 2.60 a 4.7 a 6.46 a.44 a 1.65 a 3. a 5.1 a.01 a.67 a 24 0.61 d 1.2 b 4.15 a 5.77 a.74 a 0.4 b 2.34 a 5. a 7.27 a.3 a 1.37 a 2.56 a 4.46 a 5. a.57 a 1.70 a 3.0 a 5.55 a 7.41 a.74 a 0.5 c 2. a 4.06 a 5.50 a.17 a 1.2 b 2.62 a 5. a 6.7 a.30 a 24 0.23 d 1.30 c 3.34 b 4.7 a 7.44 a 0.53 d 1.7 b 4.32 a 6.1 a.50 a 0.77 d 1.73 b 3.1 a 4.35 a 6.51 a 1.0 c 2.22 a 4. a 5.57 a.2 a 0.35 e 1.25 d 2.7 c 3.5 a 6.0 a 0.63 d 1.72 c 3.65 a 5. a 7.1 a 24 0.45 e 2.0 d 3.24 c 5.34 b 0.4 d 2.6 c 4.32 b 6.7 a 0.32 e 1.05 d 2.26 c 3.20 b 4.5 a 0.56 d 1.4 c 3.00 b 4.1 a 6.3 a 0.60 e 1. d 2.2 c 4.53 b 0. e 0. d 2.56 c 3.73 b 5.2 a 24 1.22 e 2. e 3.0 d 0. e 1.0 e 2.6 d 5.0 c TL Defl. a L/720 b L/600 c L/40 d L/360 e L/240 f L/0 20psf 3-5/" hds s 4" hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 2.51 a 4.17 a 7.3 a.67 a 13.62 a 2.7 a 4.5 a.21 a.07 a 15.71 a 2. a 3.0 a 7.03 a.34 a 13.31 a 2.46 a 4.24 a 7. a.75 a 15.41 a 24 1.52 a 3. a 6.3 a.71 a.70 a 1.5 a 3.5 a 7.26 a.13 a.1 a 2. a 3.65 a 6.57 a.61 a.25 a 2.41 a 4. a 7.4 a. a.43 a 1.70 a 3.22 a 6. a.22 a.7 a 2.03 a 3.71 a 7.0 a.71 a.05 a 24 0.7 b 2.41 a 5.40 a 7.4 a. a 1.32 a 2.3 a 6.34 a.6 a 13.32 a 1.70 a 3. a 5.74 a 7.53 a.5 a 2.03 a 3.62 a 6.70 a.07 a 13.06 a 1.25 b 2.63 a 5.2 a 7.0 a.41 a 1.5 a 3. a 6.24 a.62 a.62 a 24 0.45 d 1.74 b 4.44 a 6.27 a.5 a 0.7 b 2.27 a 5.40 a 7.76 a.77 a 1.31 b 2.60 a 4.7 a 6.46 a.44 a 1.65 a 3. a 5.1 a.01 a.67 a 0.4 c 2.07 a 4.3 a 5. a.7 a 1.17 b 2.5 a 5.40 a 7.51 a.17 a 24 1.13 c 3.51 b 5. a.0 a 0.31 d 1.63 b 4.4 a 6.5 a.23 a 0.5 c 2. a 4.06 a 5.50 a.17 a 1.2 b 2.62 a 5. a 6.7 a.30 a 0.46 d 1.55 c 3.57 b 5.01 a 7.67 a 0.77 c 2.05 b 4.5 a 6.44 a.76 a 24 0.60 d 2.70 d 4.15 c 6.77 a 1.05 d 3.62 c 5.47 a.76 a 0.35 e 1.25 d 2.7 c 3.5 a 6.0 a 0.63 d 1.72 c 3.65 a 5. a 7.1 a 0.70 e 2.30 d 3.46 c 5.5 a 0.0 e 1. d 3. c 4.57 b 7.24 a 24 1.4 e 2.62 d 4.67 c 0.0 e 2.17 d 3.62 d 6.22 b 0.60 e 1. d 2.2 c 4.53 b 0. e 0. d 2.56 c 3.73 b 5.2 a 0.0 f 1.43 e 2.36 d 4.03 c 0.3 e 2.04 d 3.20 d 5.35 b 24 0.66 f 1.56 e 3. e 1. e 2.2 e 4.35 d Blank cells do not meet L/0. 1 Studs are assumed to be simple span. 2 Axial loads are assumed to pass through the geometric centroid of the section. 3 Allowable axial loads when combined with 5psf lateral load are applicable for interior use only (no lateral wind loading). 4 Wind loads are multiplied by 0.7 for deflection calculations per Section B1 of the AISI Wall Stud Design Standard except for the 5psf load which is considered an interior wall load. 5 A 1/3 stress increase is not used. 6 Provide bridging and/or bracing at 5' o.c. maximum. Allowable loads are based on weak axis and torsional bracing at 5' o.c. maximum for axial load, and continuous support of each flange for moment. 7 Perforated properties are based on the standard 1-1/2" x 4" oval ClarkDietrich web knockout. The knockout is centered about the web, and is spaced no less than 24" o.c. Yield strength of 20 and 1 gauge members is 33ksi; gauge and heavier are 50ksi. Cells marked with an * have h/t > 200 and thus require bearing stiffeners designed in accordance with AISI-NASPEC, 2001 with the 2004 supplement. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information. 66 Heavy- Duty Stud ( HDS) Framing System
67 Heavy- Duty Stud ( HDS) Framing System A l l o w a b l e H D S A x i a l L o a d s ( k i p s ) 25psf 3-5/" hds s 4" hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 2.25 a 3. a 7. a.43 a 13.3 a 2.54 a 4.33 a 7.6 a.3 a 15.4 a 1.3 a 3.45 a 6.70 a.02 a 13.00 a 2.15 a 3.1 a 7.57 a.44 a 15. a 24 1.06 a 2.62 a 5.1 a.26 a.25 a 1.42 a 3. a 6.2 a.6 a.3 a 1.0 a 3.32 a 6.26 a.31 a.7 a 2.13 a 3.1 a 7.1 a.0 a. a 1.32 a 2.0 a 5.77 a 7.4 a.50 a 1.67 a 3.31 a 6.70 a.33 a 13.6 a 24 0.46 c 1.5 b 4.6 a 6.6 a.62 a 0.1 b 2.3 a 5.1 a.43 a.7 a 1.36 a 2.75 a 5.3 a 7.1 a.52 a 1.70 a 3.26 a 6.36 a.73 a.73 a 0.4 c 2.17 a 4.4 a 6.67 a. a 1.1 a 2.6 a 5.1 a.1 a.1 a 24 1. c 3.6 b 5.71 a.01 a 0.24 c 1.66 b 4.1 a 7.17 a.17 a 0.5 c 2.20 a 4.50 a 6. a.0 a 1.2 a 2.72 a 5.53 a 7.63 a.2 a 0.40 d 1.5 c 3.3 a 5.55 a.52 a 0.72 c 2.0 a 4.3 a 7.03 a.6 a 24 0.51 d 2.3 c 4.56 b 7.4 a 0. c 3.6 b 5.5 a.57 a 0.5 d 1.6 b 3.6 a 5.13 a 7.7 a 0. c 2.1 a 4.71 a 6.57 a. a 0.01 e 1.06 d 3. c 4.57 b 7.21 a 0.3 d 1.53 c 4.0 b 5.4 a.24 a 24 2. d 3.57 d 6.15 b 0.3 d 2. d 4.2 b.07 a 0.3 d 2.42 d 3.5 c 5.70 a 0.22 e 1.26 d 3.24 c 4.71 a 7.3 a 0.21 e 1.7 e 3.03 d 5. b 0.5 e 2.62 d 4.0 c 6.71 a 24 0.4 f 2.07 e 4.07 d 1.54 e 2. d 5.53 c 0.21 e 1.53 e 2.47 d 4.15 c 0.53 e 2. d 3.33 c 5.4 b 1.02 f 1.4 e 3.5 d 1.57 e 2.73 d 4.3 c 24 0.15 f 1.05 f 2.5 e 0.56 f 1.6 e 3.6 e 35psf 3-5/" hds s 4" hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 1.75 a 3.36 a 6.62 a.5 a.2 a 2.0 a 3.3 a 7.4 a.36 a 15.03 a 1.21 a 2.7 a 6.07 a.41 a.40 a 1.56 a 3.2 a 6.6 a.3 a.52 a 24 0.22 c 1.70 a 5.03 a 7.3 a.3 a 0.60 b 2.24 a 5.6 a.2 a 13.53 a 1.23 a 2.70 a 5.67 a 7.75 a.41 a 1.5 a 3.21 a 6.61 a.23 a 13.5 a 0.62 c 2.04 a 5.04 a 7.13 a.7 a 0. b 2.56 a 5. a.60 a.6 a 24 0.3 c 3. b 5. a.63 a 1.37 b 4.2 a 7.43 a.7 a 0.74 c 2.06 a 4.74 a 6.57 a. a 1.0 b 2.5 a 5.71 a.07 a.0 a 0.0 d 1.34 c 4.05 b 5. a.20 a 0.42 c 1.6 b 5.00 a 7.36 a.36 a 24 0.06 d 2.2 d 4.6 c 7.4 a 0.55 d 3.73 c 6.06 a.03 a 0.30 d 1.47 c 3.2 b 5.45 a.41 a 0.62 c 1. b 4.2 a 6.2 a.57 a 0.71 d 3. c 4.75 b 7.6 a 1.1 c 4.06 b 6.15 a.7 a 24 1. e 3.51 d 6.3 b 2.72 d 4.7 c.36 a 0.4 d 3.01 c 4.46 b 7. a 0.1 d 1.41 c 3.6 b 5.2 a. a 0.17 e 2.31 d 3.76 c 6.35 b 0.60 d 3.1 c 5.03 b.30 a 24 1. e 2.54 e 5.04 d 1.3 e 3.65 d 6.2 c 0.0 e 1.77 e 2.2 d 4. c 0.45 e 2.50 d 3.6 c 6.5 a 1. e 2.25 e 4.26 d 1.75 e 3.1 d 5.75 c 24 1.0 f 2. e 0.45 f 1.5 e 4.30 d 0.3 f 1.4 e 3.47 d 1.46 e 2.61 d 4.70 c 0.32 f 1.21 f 2.7 e 0.75 f 1. e 3.0 d 24 0. f 1.5 f 0.63 f 2.52 e 30psf 3-5/" hds s 4" hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 2.00 a 3.62 a 6.7 a.1 a 13.15 a 2.31 a 4.0 a 7.73 a.5 a 15.26 a 1.52 a 3. a 6.3 a.71 a.70 a 1.5 a 3.5 a 7.26 a.13 a.1 a 24 0.63 b 2.15 a 5.46 a 7.2 a.2 a 1.00 a 2.67 a 6.3 a.25 a 13.5 a 1.51 a 3.01 a 5.6 a.03 a.6 a 1.5 a 3.51 a 6. a.51 a 13.6 a 0.7 b 2.41 a 5.40 a 7.4 a. a 1.32 a 2.3 a 6.34 a.6 a 13.32 a 24 1.33 c 4.36 a 6.46 a. a 0.34 c 1.6 a 5.31 a 7.2 a.2 a 1.04 b 2.40 a 5.06 a 6.7 a.20 a 1.3 a 2.2 a 6.02 a.40 a.40 a 0.45 d 1.74 b 4.44 a 6.27 a.5 a 0.7 b 2.27 a 5.40 a 7.76 a.77 a 24 0.5 d 3.33 c 5.1 b.46 a 1.0 c 4.25 b 6.60 a.5 a 0.61 d 1.2 b 4.15 a 5.77 a.74 a 0.4 b 2.34 a 5. a 7.27 a.3 a 1.13 c 3.51 b 5. a.0 a 0.31 d 1.63 b 4.4 a 6.5 a.23 a 24 2.3 d 4.02 c 6.2 b 0.3 d 3.27 c 5.35 b.5 a 0.23 d 1.30 c 3.34 b 4.7 a 7.44 a 0.53 d 1.7 b 4.32 a 6.1 a.50 a 0.60 d 2.70 d 4.15 c 6.77 a 1.05 d 3.62 c 5.47 a.76 a 24 1.60 e 3.04 d 5.5 c 2.3 d 4.21 c 7.43 b 0.45 e 2.0 d 3.24 c 5.34 b 0.4 d 2.6 c 4.32 b 6.7 a 1.4 e 2.62 d 4.67 c 0.0 e 2.17 d 3.62 d 6.22 b 24 0.44 f 1.56 e 3.51 e 0. e 2.3 e 4. d 1.22 e 2. e 3.0 d 0. e 1.0 e 2.6 d 5.0 c 0.66 f 1.56 e 3. e 1. e 2.2 e 4.35 d 24 0.57 f 2.07 f 0.03 f 1. f 3.0 e 40psf 3-5/" hds s 4" hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 1.52 a 3. a 6.3 a.71 a.70 a 1.5 a 3.5 a 7.26 a.13 a.1 a 0.2 b 2.46 a 5.76 a. a. a 1.2 a 2.7 a 6.67 a.54 a.23 a 24 1.26 b 4.62 a 6. a. a 0.21 c 1.1 a 5.55 a.41 a 13. a 0.7 b 2.41 a 5.40 a 7.4 a. a 1.32 a 2.3 a 6.34 a.6 a 13.32 a 0.30 c 1.6 b 4.6 a 6.7 a.45 a 0.65 b 2.21 a 5.64 a.26 a.62 a 24 0.36 d 3.42 c 5.53 b. a 0. c 4.36 b 6.5 a.30 a 0.45 d 1.74 b 4.44 a 6.27 a.5 a 0.7 b 2.27 a 5.40 a 7.76 a.77 a 0.5 c 3.6 b 5.53 a.3 a 0.07 d 1.47 b 4.62 a 6.7 a.7 a 24 2.35 d 4.20 c 7.44 b 0.04 d 3.22 c 5.54 b.5 a 1.13 c 3.51 b 5. a.0 a 0.31 d 1.63 b 4.4 a 6.5 a.23 a 0.31 d 2.74 d 4.3 c 7.30 a 0.7 d 3.66 c 5.74 a.36 a 24 1.41 e 3.03 d 5.7 c 2.20 d 4.25 c 7.7 b 0.60 d 2.70 d 4.15 c 6.77 a 1.05 d 3.62 c 5.47 a.76 a 1.4 e 3.3 d 5.6 b 0.17 e 2.7 d 4.61 c 7.5 a 24 0.64 f 2.06 e 4.53 d 1.31 e 3. d 6.24 c 1.4 e 2.62 d 4.67 c 0.0 e 2.17 d 3.62 d 6.22 b 0.77 f 1.0 e 3. d 1.35 e 2.7 e 5.31 c 24 0.65 f 2.50 e 1.33 f 3.73 e 0.66 f 1.56 e 3. e 1. e 2.2 e 4.35 d 0. f 2.41 e 0.3 f 1.50 f 3.4 e 24 1. f 0.15 f 1. f See table notes on page 66. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information.
A l l o w a b l e H D S A x i a l L o a d s ( k i p s ) 5psf 6" hds s " hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 5.0 a. a.77 a 20.74 a 30. a 5.31 a*.47 a 15.60 a 22.27 a 33.77 a 5.03 a.04 a.71 a 20.67 a 30.0 a 5.27 a*.43 a 15.56 a 22.23 a 33.72 a 24 4.0 a 7.0 a.57 a 20.53 a 30.75 a 5.1 a*.34 a 15.47 a 22. a 33.63 a 4.6 a 7.2 a.4 a 20. a 2.7 a 5.24 a*.3 a 15.40 a 21.5 a 33.25 a 4. a 7.4 a.40 a 20.02 a 2.7 a 5.1 a*.32 a 15.35 a 21. a 33.1 a 24 4.73 a 7.67 a.23 a 1.3 a 2.67 a 5.0 a*.21 a 15.24 a 21.7 a 33.07 a 4.2 a 7.72 a.0 a 1.40 a 2.4 a 5. a*.27 a 15.1 a 21.5 a 32.65 a 4.73 a 7.61 a 13. a 1.2 a 2.72 a 5. a*.20 a 15. a 21.50 a 32.57 a 24 4.54 a 7.40 a 13.76 a 1.05 a 2.47 a 4.6 a*.06 a.7 a 21.36 a 32.42 a 4.67 a 7.4 a 13.57 a 1.62 a 27.62 a 5.07 a*. a.2 a 21.15 a 31.7 a 4.55 a 7.36 a 13.43 a 1.47 a 27.47 a 4. a*.06 a.4 a 21.06 a 31. a 24 4.32 a 7. a 13. a 1.1 a 27. a 4.3 a* 7. a.67 a 20. a 31.6 a 4.50 a 7.24 a 13.00 a 17.71 a 26.32 a 4.7 a*.00 a.6 a 20.6 a 31.22 a 4.36 a 7.0 a.4 a 17.53 a 26.13 a 4.7 a* 7.0 a.5 a 20.57 a 31. a 24 4.0 a 6.7 a.51 a 17.1 a 25.75 a 4.6 a* 7.71 a.3 a 20.35 a 30.7 a 4. a 6.67 a.67 a 15.75 a 23.51 a 4.74 a* 7.6 a. a 1.60 a 2.51 a 3.3 a 6.45 a.44 a 15.51 a 23.25 a 4.60 a* 7.54 a.00 a 1.45 a 2.34 a 24 3.57 a 6.04 a.00 a 15.03 a 22.73 a 4.34 a* 7.27 a 13.72 a 1.15 a 2.02 a 3.6 a 6.02 a.24 a 13.70 a 20.56 a 4.47 a* 7.30 a 13.31 a 1.33 a 27.57 a 3.46 a 5.75 a.5 a 13.40 a 20.21 a 4.2 a* 7. a 13. a 1.13 a 27.35 a 24 3.01 a 5.24 a.42 a.2 a 1.56 a 3.5 a* 6.77 a.75 a 17.73 a 26.2 a 20psf 6" hds s " hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 4.54 a 7.51 a.1 a 20. a 30.30 a 4.3 a*.0 a 15.22 a 21.7 a 33.34 a 4.31 a 7.25 a 13.2 a 1.1 a 30.00 a 4.76 a* 7.2 a 15.06 a 21.6 a 33.15 a 24 3.4 a 6.75 a 13.40 a 1.25 a 2.41 a 4.42 a* 7.5 a.73 a 21.33 a 32.77 a 4.27 a 7.17 a 13.71 a 1.2 a 2.0 a 4.76 a* 7. a.2 a 21.43 a 32.70 a 3. a 6.4 a 13.3 a 1.1 a 2.71 a 4.54 a* 7.67 a.71 a 21.2 a 32.45 a 24 3.3 a 6.20 a.71 a 1.1 a 27.5 a 4. a* 7.24 a.2 a 20.74 a 31.7 a 3.7 a 6.7 a 13. a 1.35 a 27.74 a 4.56 a* 7.66 a.57 a 20.2 a 31.6 a 3.61 a 6.3 a.6 a 17.0 a 27.26 a 4.30 a* 7.3 a.31 a 20.63 a 31.65 a 24 2.1 a 5.61 a.7 a 17.02 a 26.31 a 3.7 a* 6.6 a 13.7 a 20.06 a 31.04 a 3.65 a 6.36 a.37 a 17.33 a 26.26 a 4.34 a* 7.40 a.1 a 20.35 a 31. a 3.22 a 5. a.7 a.7 a 25.67 a 4.03 a* 7.0 a 13.6 a 20.00 a 30.74 a 24 2.40 a 4.7 a.0 a 15.73 a 24.53 a 3.40 a* 6.44 a 13.22 a 1.30 a 30.00 a 3.30 a 5.0 a.5 a.17 a 24.67 a 4. a* 7. a 13.0 a 1.71 a 30.1 a 2.1 a 5.35 a. a 15.53 a 23. a 3.73 a* 6.73 a 13.41 a 1.2 a 2.74 a 24 1. a 4.30 a.7 a.32 a 22.65 a 3.00 a* 5. a.65 a 1.46 a 2.4 a 2.57 a 4.1 a.0 a 13.73 a 21.2 a 3.57 a* 6.47 a. a 1.26 a 2.07 a 1.7 a 4.22 a.07 a.3 a 20.3 a 3.0 a* 5.6 a.36 a 17.6 a 27.44 a 24 0.7 c 2.6 a 7.74 a.4 a 1.74 a 2. a* 4.7 a.33 a.56 a 26.23 a 1.5 a 3.0 a.01 a.30 a 17.2 a 2. a* 5.75 a.6 a.57 a 25.66 a 1.17 c 3. a 7.20 a.41 a.0 a 2.3 a* 5. a.00 a 15.4 a 24.6 a 24 1.72 c 5.76 b.3 a.7 a 1.24 a* 3. a.72 a.44 a 23.32 a 15psf 6" hds s " hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 4.72 a 7.71 a.3 a 20.31 a 30.53 a 5.06 a*.22 a 15.35 a 22.00 a 33.4 a 4.54 a 7.51 a.1 a 20. a 30.30 a 4.3 a*.0 a 15.22 a 21.7 a 33.34 a 24 4.1 a 7.13 a 13.7 a 1.67 a 2.6 a 4.6 a* 7.3 a.7 a 21.60 a 33.06 a 4.50 a 7.42 a 13.7 a 1.55 a 2.3 a 4.2 a*.05 a 15.0 a 21.60 a 32. a 4.27 a 7.17 a 13.71 a 1.2 a 2.0 a 4.76 a* 7. a.2 a 21.43 a 32.70 a 24 3.3 a 6.6 a 13.21 a 1.73 a 2.51 a 4.44 a* 7.56 a.60 a 21.0 a 32.33 a 4.25 a 7.0 a 13.43 a 1.70 a 2. a 4.76 a* 7.6 a.77 a 21. a 32.1 a 3.7 a 6.7 a 13. a 1.35 a 27.74 a 4.56 a* 7.66 a.57 a 20.2 a 31.6 a 24 3.43 a 6.1 a.4 a 17.6 a 27.02 a 4.17 a* 7.26 a.1 a 20.4 a 31.50 a 3. a 6.73 a.76 a 17.75 a 26.70 a 4.5 a* 7.65 a.42 a 20.61 a 31.40 a 3.65 a 6.36 a.37 a 17.33 a 26.26 a 4.34 a* 7.40 a.1 a 20.35 a 31. a 24 3.01 a 5.65 a.62 a.52 a 25.3 a 3.7 a* 6.2 a 13.70 a 1.2 a 30.56 a 3.6 a 6.33 a.04 a.67 a 25.21 a 4.3 a* 7.41 a. a 20.03 a 30.53 a 3.30 a 5.0 a.5 a.17 a 24.67 a 4. a* 7. a 13.0 a 1.71 a 30.1 a 24 2.57 a 5.0 a.70 a 15.22 a 23.64 a 3.55 a* 6.54 a 13.22 a 1.0 a 2.51 a 3.05 a 5.46 a.3 a.36 a 21. a 3.5 a* 6.7 a 13.30 a 1.70 a 2.54 a 2.57 a 4.1 a.0 a 13.73 a 21.2 a 3.57 a* 6.47 a. a 1.26 a 2.07 a 24 1.6 a 3. a.72 a.55 a 1.6 a 2.4 a* 5.71 a. a 17.40 a 27. a 2.40 a 4.54 a.6 a.02 a 1.66 a 3.46 a* 6.25 a.20 a 17. a 26.2 a 1.5 a 3.0 a.01 a.30 a 17.2 a 2. a* 5.75 a.6 a.57 a 25.66 a 24 0.5 c 2.75 b 6.2 a. a.32 a 2.0 a* 4.7 a.67 a 15.4 a 24.46 a TL Defl. a L/720 b L/600 c L/40 d L/360 e L/240 f L/0 Blank cells do not meet L/0. 1 Studs are assumed to be simple span. 2 Axial loads are assumed to pass through the geometric centroid of the section. 3 Allowable axial loads when combined with 5psf lateral load are applicable for interior use only (no lateral wind loading). 4 Wind loads are multiplied by 0.7 for deflection calculations per Section B1 of the AISI Wall Stud Design Standard except for the 5psf load which is considered an interior wall load. 5 A 1/3 stress increase is not used. 6 Provide bridging and/or bracing at 5' o.c. maximum. Allowable loads are based on weak axis and torsional bracing at 5' o.c. maximum for axial load, and continuous support of each flange for moment. 7 Perforated properties are based on the standard 1-1/2" x 4" oval ClarkDietrich web knockout. The knockout is centered about the web, and is spaced no less than 24" o.c. Yield strength of 20 and 1 gauge members is 33ksi; gauge and heavier are 50ksi. Cells marked with an * have h/t > 200 and thus require bearing stiffeners designed in accordance with AISI-NASPEC, 2001 with the 2004 supplement. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information. 6 Heavy- Duty Stud ( HDS) Framing System
6 Heavy- Duty Stud ( HDS) Framing System A l l o w a b l e H D S A x i a l L o a d s ( k i p s ) 25psf 6" hds s " hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 4.36 a 7.32 a 13. a 1. a 30.0 a 4.0 a* 7.6 a 15. a 21.73 a 33.20 a 4.07 a 7.00 a 13.66 a 1.53 a 2.71 a 4.5 a* 7.75 a. a 21.51 a 32.6 a 24 3.4 a 6.37 a 13.02 a 1.3 a 2.7 a 4.17 a* 7.33 a.4 a 21.06 a 32.4 a 4.05 a 6.3 a 13.46 a 1.00 a 2.0 a 4.6 a* 7.72 a.76 a 21.25 a 32.52 a 3.6 a 6.52 a 13.04 a 1.55 a 2.32 a 4.33 a* 7.46 a.50 a 20.7 a 32.21 a 24 2.6 a 5.73 a.23 a 17.67 a 27.3 a 3.0 a* 6.2 a 13.7 a 20.3 a 31.6 a 3.70 a 6.4 a.7 a 1.01 a 27.37 a 4.36 a* 7.46 a.3 a 20.70 a 31.73 a 3.26 a 5. a.2 a 17.45 a 26.7 a 4.04 a* 7. a.05 a 20.35 a 31.35 a 24 2.40 a 5.04 a.2 a.37 a 25.62 a 3.3 a* 6.47 a 13.3 a 1.63 a 30.5 a 3.33 a 6.00 a. a.2 a 25.2 a 4. a* 7. a 13.4 a 20.0 a 30.4 a 2.0 a 5.42 a.3 a.25 a 25. a 3.71 a* 6.76 a 13.54 a 1.65 a 30.37 a 24 1.2 a 4.32 a.20 a.7 a 23.71 a 2.4 a* 5.7 a.75 a 1.7 a 2.45 a 2.3 a 5.4 a.13 a 15.6 a 24.15 a 3.2 a* 6.3 a 13.51 a 1.3 a 2.5 a 2.34 a 4.2 a.42 a.2 a 23.30 a 3.36 a* 6.35 a 13.03 a 1.7 a 2.2 a 24 1.23 a 3.57 a.0 a 13.46 a 21.70 a 2.47 a* 5.43 a.0 a 17.4 a 2.1 a 2. a 4.3 a.24 a 13.13 a 20.61 a 3.20 a* 6.0 a.4 a 17.2 a 27.6 a 1.41 b 3.5 a.3 a.1 a 1.54 a 2.60 a* 5.46 a.4 a 17. a 26.3 a 24 0. d 2. b 6.3 a.4 a 17.60 a 1.46 a* 4.25 a.5 a 15.75 a 25.35 a 1.33 b 3.30 a 7.40 a.62 a 17.05 a 2.53 a* 5.26 a.17 a.02 a 25.06 a 0.54 d 2.3 b 6.45 a.5 a 15.5 a 1.0 a* 4.4 a.35 a 15.13 a 24.0 a 24 0.7 d 4.0 c 7.77 b 13.74 a 0.44 b* 3.02 a.2 a 13.45 a 22.21 a 35psf 6" hds s " hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 4.01 a 6.4 a 13.5 a 1.46 a 2.63 a 4.55 a* 7.71 a.5 a 21.46 a 32.1 a 3.60 a 6.4 a 13.15 a 1.7 a 2. a 4.26 a* 7.41 a.56 a 21.15 a 32.5 a 24 2.1 a 5.63 a.26 a 1.01 a 2. a 3.67 a* 6.2 a 13. a 20.52 a 31.2 a 3.61 a 6.44 a.6 a 1.46 a 2.23 a 4.2 a* 7.40 a.44 a 20.1 a 32.15 a 3. a 5. a.3 a 17.4 a 27.57 a 3.1 a* 7.03 a.0 a 20.51 a 31.72 a 24 2.13 a 4.2 a.2 a.64 a 26.2 a 3.1 a* 6.2 a 13.34 a 1.71 a 30. a 3.17 a 5.0 a.1 a 17.34 a 26.66 a 3.7 a* 7.06 a 13. a 20.27 a 31.27 a 2.57 a 5.23 a.4 a.5 a 25.5 a 3.52 a* 6.60 a 13.52 a 1.7 a 30.74 a 24 1.43 a 3.6 a.13 a 15.13 a 24.2 a 2.63 a* 5.6 a.62 a 1.7 a 2.6 a 2.70 a 5.31 a.26 a. a 24.6 a 3.63 a* 6.6 a 13.46 a 1.56 a 30.2 a 2.01 a 4.53 a.43 a 15.22 a 23. a 3.0 a* 6. a.0 a 1.5 a 2.63 a 24 0.71 b 3.07 a. a 13.53 a 22.13 a 2.05 a* 5.04 a.2 a 17.76 a 2.35 a 2.22 a 4.6 a.2 a.77 a 23. a 3.27 a* 6.26 a.3 a 1.77 a 2.1 a 1.45 a 3.1 a.35 a 13.75 a 22.01 a 2.64 a* 5.61 a.2 a 1.05 a 2.40 a 24 0.02 c 2.1 b 7.62 a.5 a 1.1 a 1.43 a* 4.35 a. a.65 a 26. a 1.27 b 3.42 a.22 a.00 a 1.34 a 2.4 a* 5.34 a.71 a. a 26.6 a 0.37 c 2.3 b 7. a.0 a 17.7 a 1.6 a* 4.4 a.3 a.02 a 25.64 a 24 0.53 d 5.17 c.65 b 15.50 a 0.1 b* 2. a. a.20 a 23.63 a 0.3 d 2.22 c 6.2 a.40 a 15.63 a 1.66 a* 4.33 a.1 a.5 a 23. a 1.0 d 5. c. b. a 0.71 b* 3.30 a. a 13.7 a 22.5 a 24 3.0 d 5. d.53 b 1.41 b 7.13 a.5 a 20. a 30psf 6" hds s " hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 4.1 a 7.13 a 13.7 a 1.67 a 2.6 a 4.6 a* 7.3 a.7 a 21.60 a 33.06 a 3.4 a 6.75 a 13.40 a 1.25 a 2.41 a 4.42 a* 7.5 a.73 a 21.33 a 32.77 a 24 3.15 a 6.00 a.64 a 1.42 a 2.54 a 3.2 a* 7.07 a.23 a 20.7 a 32.20 a 3.3 a 6.6 a 13.21 a 1.73 a 2.51 a 4.44 a* 7.56 a.60 a 21.0 a 32.33 a 3.3 a 6.20 a.71 a 1.1 a 27.5 a 4. a* 7.24 a.2 a 20.74 a 31.7 a 24 2.54 a 5.27 a.75 a 17.15 a 26.3 a 3.4 a* 6.60 a 13.66 a 20.05 a 31.24 a 3.43 a 6.1 a.4 a 17.6 a 27.02 a 4.17 a* 7.26 a.1 a 20.4 a 31.50 a 2.1 a 5.61 a.7 a 17.02 a 26.31 a 3.7 a* 6.6 a 13.7 a 20.06 a 31.04 a 24 1.1 a 4.4 a.70 a 15.74 a 24.4 a 3.01 a* 6.0 a 13.01 a 1.21 a 30. a 3.01 a 5.65 a.62 a.52 a 25.3 a 3.7 a* 6.2 a 13.7 a 1.2 a 30.56 a 2.40 a 4.7 a. a 15.73 a 24.53 a 3.40 a* 6.44 a 13.22 a 1.30 a 30.00 a 24 1.26 a 3.6 a.53 a.24 a 22.1 a 2.4 a* 5.50 a.2 a 1.27 a 2.0 a 2.57 a 5.0 a.70 a 15.22 a 23.64 a 3.55 a* 6.54 a 13.22 a 1.0 a 2.51 a 1. a 4.30 a.7 a.32 a 22.65 a 3.00 a* 5. a.65 a 1.46 a 2.4 a 24 0.61 b 2.6 a.34 a.64 a 20.7 a 1.5 a* 4. a.54 a 17.24 a 27.53 a 1.6 a 3. a.72 a.55 a 1.6 a 2.4 a* 5.71 a. a 17.40 a 27. a 0.7 c 2.6 a 7.74 a.4 a 1.74 a 2. a* 4.7 a.33 a.56 a 26.23 a 24 1.30 c 5.7 b.54 a.52 a 0.1 a* 3.56 a.6 a.6 a 24.4 a 0.5 c 2.75 b 6.2 a. a.32 a 2.0 a* 4.7 a.67 a 15.4 a 24.46 a 1.72 c 5.76 b.3 a.7 a 1.24 a* 3. a.72 a.44 a 23.32 a 24 3.1 d 6.0 c.60 a 2.20 b 7.6 a.50 a 21.15 a 40psf 6" hds s " hds s 20 (33) 1 (43) (54) (6) (7) 20 (33) 1 (43) (54) (6) (7) 3.4 a 6.75 a 13.40 a 1.25 a 2.41 a 4.42 a* 7.5 a.73 a 21.33 a 32.77 a 3.37 a 6.24 a. a 1.70 a 2.3 a 4.0 a* 7.24 a.40 a 20.7 a 32.3 a 24 2.4 a 5.26 a. a 17.61 a 27.67 a 3.43 a* 6.57 a 13.74 a 20.26 a 31.64 a 3.3 a 6.20 a.71 a 1.1 a 27.5 a 4. a* 7.24 a.2 a 20.74 a 31.7 a 2.2 a 5.5 a.07 a 17.4 a 27.20 a 3.70 a* 6.1 a 13.7 a 20.2 a 31.4 a 24 1.73 a 4.37 a.1 a.13 a 25.74 a 2.7 a* 5.7 a 13.03 a 1.37 a 30.52 a 2.1 a 5.61 a.7 a 17.02 a 26.31 a 3.7 a* 6.6 a 13.7 a 20.06 a 31.04 a 2.23 a 4.6 a.0 a. a 25.3 a 3.26 a* 6.34 a 13.26 a 1.4 a 30.44 a 24 0.6 a 3.44 a.5 a.53 a 23.62 a 2.26 a* 5.31 a.24 a 1.37 a 2.24 a 2.40 a 4.7 a.0 a 15.73 a 24.53 a 3.40 a* 6.44 a 13.22 a 1.30 a 30.00 a 1.63 a 4. a. a.72 a 23.44 a 2.7 a* 5.1 a.5 a 1.61 a 2.26 a 24 0.1 c 2.4 a.25 a.4 a 21.37 a 1.61 a* 4.5 a.36 a 17.26 a 27.1 a 1. a 4.30 a.7 a.32 a 22.65 a 3.00 a* 5. a.65 a 1.46 a 2.4 a 1.02 b 3.33 a.3 a 13.1 a 21.3 a 2.2 a* 5.24 a.0 a 17.64 a 27.7 a 24 1.54 b 6.3 a.0 a 1.06 a 0.3 a* 3.3 a.46 a.06 a 26.25 a 0.7 c 2.6 a 7.74 a.4 a 1.74 a 2. a* 4.7 a.33 a.56 a 26.23 a 1.3 c 6.54 a. a 17.23 a 1.24 a* 4.02 a.34 a 15.4 a 25.05 a 24 4.41 c 7.1 b.53 a 2.23 a.47 a 13.45 a 22.0 a 1.72 c 5.76 b.3 a.7 a 1.24 a* 3. a.72 a.44 a 23.32 a 0.50 d 4.4 c 7.44 b 13.35 a 0.1 c* 2.74 a.53 a 13.13 a 21.5 a 24 2.30 e 5.03 d.53 c 0.66 c 6.33 b.71 a 1.13 a See table notes on page 6. Pub. No. CD-STR-TechGuide 2/ The technical content of this literature is effective 2/1/ and supersedes all previous information.