bar grating USA: Fisher & Ludlow, Inc. Canada: Fisher & Ludlow

Transcription

1 bar grating SA: Fisher & Ludlow, Inc. anada: Fisher & Ludlow

2 introduction Quality People Delivering Quality Products and Services Today s construction projects demand the highest quality standards and at Nucor Grating, we deliver. Nucor Grating is proud to be your first choice in the North American grating market. Our reputation for superior quality and service has rewarded us with the privilege of being specified on many of North America s largest capital projects. Our products may be found around the world in industrial sectors such as oil and gas production, mining, water and wastewater treatment, power generation, as well as a wide variety of architectural applications. We lead the industry with a commitment to continuous improvement in our safety and quality standards. We are ISO 9001:2008 certified and our steel grating products count towards credits under the Leadership in Energy and Environmental Design (LEED) green building program. Paramount to all of our product designs is safety. At Nucor Grating we believe that safety is not just a goal, but a lifestyle. By promoting healthy and safe living beyond the workplace, our successful team takes pride in achieving outstanding safety track records both on and off the job. This pride is apparent in the products we create and services we offer our customers. With our strategic network of well-stocked warehouses and fabrication facilities, our products are always readily available. The friendly and knowledgeable staff in our sales, engineering, and drafting departments can take your requirements from structural drawings to detailed grating drawings and on to completely fabricated, ready-to-install grating. As we are both a manufacturer and fabricator, we offer our customers complete One Source responsibility for all their grating needs. Whether supplying trench grating covers, stair treads, elevated platforms or catwalks, from the floor up, you can count on Nucor Grating to supply durable and reliable products. We thank you for your continued support in making Nucor Grating your #1 choice for grating. 2 NOR GRATING > (SA) (anada)

3 our complete product line bar grating tru-weld steel and stainless steel bar grating fisholow aluminum rectangular bar grating tru-weld heavy duty bar grating fisholow aluminum i-bar grating fiberglass reinforced plastic (FRP) grating molded frp grating pultruded frp grating Warranty We warrant all goods of our manufacture to be free from defects caused by faulty material or poor workmanship and will at our option repair or replace, without charge, or allow credit for any such goods found on examination by us to be defective under normal use and service within one year from date of shipment to the buyer, provided we are promptly notified in writing upon discovery of such defects. Goods shall not be returned to us without our consent in writing. This warranty does not cover damage caused by improper installation, overloading, accident, neglect or harmful alterations, or repairs made by others. The buyer s remedies with respect to defective goods shall be exclusively limited as above provided (anada) (SA) < NOR GRATING 3

4 contents bar grating Tru-Weld Standard Mesh Bar Grating Bar Grating Anatomy Steel Bar Grating ustom Fabrication How to Order Manufacturing Tolerances Steel Stair Treads Standard Mesh Load Tables Stainless Steel Bar Grating Special Mesh Bar Grating Special Mesh (Metric) Special Mesh Theoretical Weights and Open Areas Heavy Duty Bar Grating Heavy Duty Load Tables Heavy Duty Special Mesh (Metric) Heavy Duty Special Mesh Fisholow Aluminum Standard Mesh Bar Grating Aluminum Stair Treads Aluminum Load Tables Aluminum Special Mesh fiberglass reinforced plastic (FRP) grating Molded FRP Pultruded FRP grating fastening methods 4 NOR GRATING > (SA) (anada)

5 bar grating steel, stainless steel, and aluminum (anada) (SA) < NOR GRATING 5

6 standard mesh bar grating bar grating anatomy Tru-Weld Bar Grating Bar grating Standard Mesh Tru-Weld bar grating is forge-welded, a system in which Nucor Grating was a pioneer. In this process the bearing bars and cross rods are permanently forged together by heat and pressure into a single unit construction, resulting in greater strength per pound than mechanical assembly methods. The twisted cross rods provide a non-slip walking surface. For applications where extremely slippery conditions prevail, Serrated Tru-Weld offers a superior grip surface to the load bearing bars. What does Type 19-4 Mean? Bar grating types are specified by bearing bar spacing followed by cross rod spacing. plain surface serrated surface In imperial measurements, bearing bar spacing is described in sixteenths of an inch. Therefore, Type 19 has bearing bar centers at 19/16 of an inch (or 1 3/16 ). Type 15 has bearing bar centers at 15/16. Type 11 is at 11/16 etc. The second number after the dash in the Type designation refers to the cross rod spacing. ross rods are available in either 4 (standard) or 2 (special) spacings. All bar grating Types may also be described in metric units. Again, the first number represents the bearing bar spacing on centers and the second number represents the cross rod spacing, both units measured in millimeters. Therefore, Type Metric equals bearing bars at 30mm centers and cross rods at 102mm centers. This is the metric equivalent of Type Note: Although the special 2 (50mm) cross rod spacing does allow for less open space on the grating surface, it does not affect the load rating of the grating. The most economical and readily available choice for bar grating selection is Type 19-4 (Type Metric). 6 NOR GRATING > (SA) (anada)

7 standard mesh bar grating Steel Bar Grating Tru-Weld steel bar grating is the most popular product manufactured by Nucor Grating. Nearly all sizes in Standard Mesh Type 19-4 (Type metric) are readily available in our warehouses or stocked on the shelves of our distributors. Simplicity in design is surpassed by its versatility in usage. From mezzanines, platforms, catwalks, and stairs to fences, benches, racking shelves, and ventilation covers, Tru-Weld Steel Bar Grating is by no means limited to the industrial applications for which it was originally designed. Available in bare steel, shop primed, or hot dip galvanized. Standard Mesh bar grating (anada) (SA) < NOR GRATING 7

8 standard mesh bar grating custom fabrication Standard Mesh Bar grating Nucor Grating is a full service grating supplier. All of our products are available in either stock panels, or fully fabricated to suit your individual requirements. Examples of fabrication include: utting to size Providing cutouts for penetrations in grating panels Welding banding, kick plate, or nosings to grating Fabricating stair treads ustom additions such as checker plate, lifting handles, and hinges ircular layouts and radial platforms Our Sales, Engineering, Drafting, and Fabrication departments can take your requirements from structural drawings to detailed grating drawings and on to completely fabricated ready-to-install grating. Armed with the latest technology in computer aided design and 3-D software applications, Nucor Grating is dedicated to continuous improvement and maximizing efficiencies in the detailing process. Many of today s projects demand just-in-time delivery. Our experienced project managers can effectively coordinate your multi-release schedules to ensure your job site receives the grating they need, when they need it. Grating panels are piece marked and clearly identified on our supplied grating drawings for accurate field installation. As we are both a manufacturer and fabricator of grating we can offer our customers complete One Source responsibility for all their grating needs. 8 NOR GRATING > (SA) (anada)

9 standard mesh bar grating how to order Tru-Weld Bar Grating standard clearances When ordering or specifying Tru-Weld Bar Grating, please confirm: The Type of grating. Type 19-4 (Type Metric) is Standard. Bar Size Grating surface serrated or plain top Finish unpainted, shop primer, or hot dip galvanized Style and quantity of fasteners, if required. Example: Nucor Grating Tru-Weld bar grating Type 19-4, 1 1/4 x 3/16 serrated, galvanized. Standard Mesh If purchasing fabricated grating, please also confirm: Span Direction (Direction of bearing bars) Area to be covered and method of support Dimensions indicate whether your dimensions take clearances into account Indicate any banding, kick plate, or nosing requirements Shipping and tagging instructions bar grating Standard Practices Standard quantity measurements for invoicing Invoicing area or net area for grating ordered to specific dimensions without drawings will be based on length by width of each panel, with no deductions for cutouts. For grating supplied from a drawing, the invoicing area shall be on the basis of gross floor area measured out to out of grating, with no deductions for clearances. load table information The load table calculations used throughout this catalogue are based on single span condition. The dimensions shown are for a clear, unsupported span. Any detailing and/or fabrication of grating by Nucor Grating will conform to the ANSI/N.A.A.M.M. Standards. Field measurement The Seller shall not be responsible for the actual dimensions of construction work in the field, but shall be responsible for the accurate fabrication of grating and treads in accordance with plans and specifications, if applicable. *All weights will increase by 5% when galvanized (anada) (SA) < NOR GRATING 9

10 standard mesh bar grating manufacturing tolerances Bar grating Standard Mesh Stair tread Note: Length of tread is distance between outer faces of carrier plates or back to back of carrier angles. 10 NOR GRATING > (SA) (anada)

11 standard mesh bar grating steel stair treads standard tread detail Tread with checker plate nosing (Standard) Tru-Weld standard treads with checker plate nosings are cost effective, durable and self-cleaning. The checker plate nosing insures maximum visibility and underfoot safety where needed most. Standard Mesh End Plate Width and Hole Pattern Dimensions Tread with aluminum abrasive nosing (Special order) ast aluminum abrasive nosings offer maximum slip resistance on the leading edge of the tread. bar grating # of Bars TREAD WIDTH (Type 19-4 Only) METRI IMPERIAL (inches) A dimension (Outer Slot) METRI IMPERIAL (inches) B dimension (Inner Slot) METRI IMPERIAL (inches) / /2 n/a n/a / /2 n/a n/a / /2 n/a n/a / / / / / /2 For tread widths 9 3/4, 10 15/16 & 12 1/8, standard end plate is complete with 2 slots. See B dimension in chart. End Plate Depth Dimensions grating depth c dimension d dimension METRI IMPERIAL (inches) METRI IMPERIAL (inches) METRI IMPERIAL (inches) 19 to 32 3/4 to 1 1/ / /2 38 and up 1 1/2 and up / maximum recommended tread lengths METRI bearing bar size IMPERIAL (inches) METRI maximum lenth of tread (Type 19-4 Only) Plain Serrated IMPERIAL (ft. & in.) METRI IMPERIAL (ft. & in.) 25 x x 3/ x /4 x 3/ x /2 x 3/ Note: 1/8 (3.2mm) bearing bar not recommended. Note: Bolts for mounting to stringers are not included. How to Order When ordering or specifying Tru-Weld Bar Grating Treads, please confirm: Type, bar size, and surface of grating Type of nosing checker plate is standard Width of tread Length of tread Finish unpainted, shop primer, or hot dip galvanized Number of treads Shipping and tagging instructions Example: Nucor Grating Tru-Weld bar grating treads, c/w 1 1/4 x 3/16 serrated grating, checker plate nosing and standard end plates, 12 1/8 wide x 36 long, painted black, 150 pcs, tagged Project AB. *All weights will increase by 5% when galvanized (anada) (SA) < NOR GRATING 11

12 standard mesh bar grating standard tru-weld type 30 (Metric) Bearing Bars: 30mm centers Stock panels: 915mm nominal width x 7315mm long type 30 metric Standard Mesh Bar grating METRI LEGEND = Safe niform Load (kpa) = Safe oncentrated Load (kn/metre of grating width) D = Deflection Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of MPa. All metric dimensions are based on a soft conversion. bearing bar size Approx. Weight (kg/m 2 ) Load/ Deflection Span in millimetres x D Spans and loads in the green shaded area exceed a deflection of 6mm for uniform loads D of 5kPa. Experience has shown that 6mm deflection is the maximum deflection to give D x pedestrian comfort, but can be exceeded for other types of loads at the discretion of D the engineer x D For serrated surface, increase depth by one size. D x D D x D D x D D x D D x D D x x x D D D D D D SEtion modulus PER 305mm OF WIDTH Tru-Weld grating meets N.A.A.M.M. standards. *All weights will increase by 5% when galvanized. 12 NOR GRATING > (SA) (anada)

13 standard mesh bar grating standard tru-weld type 19 Bearing Bars: 1 3/16 centers Stock panels: 3 nominal width x 24 long type 19 IMPERIAL LEGEND = Safe niform Load (lbs./ft. 2 ) = Safe oncentrated Load (lbs./foot of grating width) D = Deflection (inches) Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 18,000 P.S.I. bearing Approx. Load/ Span in Feet and inches bar size Weight (lbs./ft. 2 ) Deflection (inches) D /4 x 3/ Spans and loads in the green shaded area Spans and loads in the pink exceed shaded a deflection area exceed of 1/4 a deflection for uniform of 1/4 loads D for uniform loads of 100 lbs./sq. of 100 ft. lbs/sq. Experience ft. Experience has shown has that shown 1/4 that deflection is the maximum 1/4 deflection deflection to give is the pedestrian maximum comfort, deflection but to can D x 1/ be exceeded for other types give of pedestrian loads at the comfort, discretion but of can the be engineer. exceeded for other types of loads at the discretion of D For serrated 0.451surface, 0.536increase the depth engineer. by one size x 3/ D For serrated surface, increase depth by one size. D /4 x 1/ D D /4 x 3/ D D /2 x 1/ D D /2 x 3/ D D /4 x 3/ D D x 3/ D D /4 x 3/ D D /2 x 3/ D D SEtion modulus PER FOOT OF WIDTH Standard Mesh bar grating Tru-Weld grating meets N.A.A.M.M. standards. *All weights will increase by 5% when galvanized (anada) (SA) < NOR GRATING 13

14 stainless steel bar grating stainless steel information tru-weld Stainless Steel Bar Grating Stainless Steel Tru-Weld Stainless Steel Bar Grating provides a long-term durable grating solution for caustic atmospheres where corrosion resistance and minimum carbide precipitation are important considerations. Typical applications include stairs and platforms within chemical production and storage, food processing plants, and water and wastewater treatment facilities. Your choice of 304, 304L, 316, or 316L Stainless Steel grades are available. Heat from the Electroforge welding process discolors the surface of the stainless steel in the weld area. For this reason, Tru-Weld Stainless Steel Bar Grating is best suited for industrial uses where cosmetic appearance is not a factor. Bar grating stainless steel conversion factors When considering load conditions for stainless steel bar grating, please apply the calculations in the table below to the values shown in the carbon steel load tables on pages 12 and 13. METRI LEGEND = Safe niform Load (kpa) = Safe oncentrated Load (kn/metre of grating width) D = Deflection IMPERIAL LEGEND = Safe niform Load (lbs./ft. 2 ) = Safe oncentrated Load (lbs./foot of grating width) D = Deflection (inches) Stainless Steel Grade Load/Deflection multiply carbon steel load tables by: BASED ON MAXIMM ALLOWABLE FIBRE STRESS 304 Stainless Steel 304L Stainless Steel 316 Stainless Steel 316L Stainless Steel D D D D ,000 P.S.I. (137.9 MPa) 16,500 P.S.I. (113.8 MPa) 20,000 P.S.I. (137.9 MPa) 16,500 P.S.I. (113.8 MPa) 14 NOR GRATING > (SA) (anada)

15 special mesh bar grating special mesh information tru-weld Special Mesh Bar Grating Tru-Weld Special Mesh Bar Grating offer a variety of close or wide space mesh options to suit specific aesthetic or functional bar spacing requirements. As with Tru-Weld Standard Mesh Bar Grating, Special Mesh Bar Grating may be ordered with either plain or serrated bearing bars. Similarly, panels are manufactured with a standard 4 cross rod spacing but 2 cross rod spacing is available. lose Mesh Advantages of the close mesh grating style include greatly increased load bearing capabilities and prevention of fall through by dangerous objects such as heavy tools or equipment accidentally dropped from above. close mesh wide mesh Special Mesh Wide Mesh Wide mesh grating options are designed for applications requiring additional openness of bar grating to minimize buildup of snow, ice, or other debris. Available in most 1/8 and 3/16 Steel and Stainless Steel bar sizes and select Heavy Duty bar sizes. bar grating *Special Mesh Bar Grating is a non-stocked specialty item. For the most cost effective and readily available bar grating option, choose Standard Mesh Type 19-4 (Type Metric). *All weights will increase by 5% when galvanized (anada) (SA) < NOR GRATING 15

16 special mesh bar grating special mesh (metric) Special Mesh Bar grating special close mesh (metric) Deflections as per table on page 12. Type 18 Metric ADA ompatible with 4.8mm bars X Multiply load values by 1.72 as per table on page 12. Type 24 Metric Multiply load values by 1.25 as per table on page 12. special wide mesh (metric) Deflections as per table on page 12. Type 41 Metric Multiply load values by 0.73 as per table on page 12. Type 48 Metric Multiply load values by 0.63 as per table on page 12. Type 60 Metric Multiply load values by 0.50 as per table on page 12. # of Bars metric Panel width in millimetres (For 4.8mm bearing bars) close mesh standard wide mesh mesh 18 METRI 24 METRI 30 METRI 41 METRI 48 METRI 60 METRI Dimensions shown are out to out of bearing bars. For 3.2mm bearing bars, deduct 1.6mm from panel width. All metric dimensions are based on a soft conversion. *All weights will increase by 5% when galvanized. 16 NOR GRATING > (SA) (anada)

17 special mesh bar grating special mesh special close mesh Deflections as per table on page 13. Type 11 ADA ompatible with 3/16 bars X Multiply load values by 1.72 as per table on page 13. Type 15 Multiply load values by 1.25 as per table on page 13. special wide mesh Deflections as per table on page 13. Type 26 Multiply load values by 0.73 as per table on page 13. Type 30 Multiply load values by 0.63 as per table on page 13. Type 38 Multiply load values by 0.50 as per table on page 13. # of Bars close mesh 11 IMPERIAL Panel width in INHES (For 3/16 bearing bars) 15 standard mesh wide mesh /8 1 1/8 1 3/8 1 27/32 2 1/16 2 9/ /16 2 1/16 2 9/ / / / / /4 5 3/ /16 7 5/ / / / / / / /8 4 7/8 6 1/8 8 11/32 9 9/ / / /16 7 5/ / / / /4 8 1/ / / / / / / / / / /8 8 5/8 10 7/ / / / /16 9 9/ / / / / /4 10 1/2 13 1/4 18 3/ / / / / / / / / /8 12 3/8 15 5/ / / / / / / / /8 33 7/ /2 14 1/ / / / / / / / / /8 16 1/8 20 3/ / / / / / / / / /4 31 3/ / / / / / /8 19 7/8 25 1/ / / / / / /4 27 1/ / / / /8 23 5/8 29 7/ / / / /4 25 1/2 32 1/ / / / /8 27 3/8 34 5/ / / / /2 29 1/ / / /8 31 1/ / / / / / / Dimensions shown are out to out of bearing bars. For 1/8 bearing bars, deduct 1/16 from panel width. Special Mesh bar grating *All weights will increase by 5% when galvanized (anada) (SA) < NOR GRATING 17

18 special mesh bar grating theoretical weights and open areas All metric dimensions are based on a soft conversion. Bar grating Special Mesh bearing Bar size metric weights (kg/m 2 ) special close mesh standard mesh special wide mesh x n/a n/a x n/a x n/a x n/a x n/a x n/a x n/a x n/a x n/a x n/a x n/a imperial weights (lbs/ft 2 ) bearing Bar special close mesh standard mesh special wide mesh size (inches) /4 x 3/ n/a n/a x 1/ n/a x 3/ n/a /4 x 1/ n/a /4 x 3/ n/a /2 x 1/ n/a /2 x 3/ n/a /4 x 3/ n/a x 3/ n/a /4 x 3/ n/a /2 x 3/ n/a metric open area bearing Bar size special close mesh standard mesh special wide mesh mm cross rods 3.2mm 74% 77% 79% 81% 82% 83% 4.8mm 64% 70% 74% 78% 79% 81% 102mm cross rods 3.2mm 78% 82% 84% 87% 88% 89% 4.8mm 68% 75% 79% 83% 84% 86% imperial open area bearing Bar size (inches) special close mesh standard mesh special wide mesh cross rods 1/8 74% 77% 78% 81% 82% 83% 3/16 64% 70% 74% 78% 79% 81% 4 cross rods 1/8 78% 82% 84% 87% 88% 89% 3/16 68% 75% 79% 83% 84% 86% RailROAD Grating Tru-Weld Steel Railroad Grating is special wide mesh Type 26-4 (Type Metric) with bearing bars supplied serrated for additional safety. It was originally designed specifically for use as brake steps, running boards, walkways, and platforms on railcars and locomotives. Railroad Grating is supplied as standard AAR (Association of American Railroads) approved welded bar grating with bar spacing at 1 5/8 centers and cross rods at 4 centers. *All weights will increase by 5% when galvanized. 18 NOR GRATING > (SA) (anada)

19 heavy duty bar grating heavy duty information Heavy-Duty Steel Bar Grating Steel Bar Grating with bearing bars thicker than 3/16 is considered to be Heavy Duty and carries the designation prefix Type HD. Available bar thicknesses are 1/4 and 3/8 in either a plain or serrated surface. Standard depths range from 1 up to 4, although larger sizes are available upon request. Tru-Weld Heavy Duty Steel Bar Grating is commonly used for floor trench and sump covers exposed to heavy equipment traffic. It is used extensively throughout mining, power generation, highways, airfields, and on truck terminal loading docks and ramps. It is suitable for large single span conditions or where grating must support extreme loads. Heavy Duty *All weights will increase by 5% when galvanized. *For serrated surface, the load carrying capacity would be minimized. bar grating (anada) (SA) < NOR GRATING 19

20 heavy duty bar grating heavy duty tru-weld type HD-30 (Metric) Bearing Bars: 30mm centers Panel Sizes: 914mm nomimal width x 6096mm long for 6.4mm only 610mm nomimal width x 6096mm long for 9.5mm type hd-30 metric Heavy Duty Bar grating METRI LEGEND = Safe niform Load (kpa) = Safe oncentrated Load (kn/metre of grating width) Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of MPa. All metric dimensions are based on a soft conversion. bearing bar size Approx. Weight (kg/m 2 ) Load/ Deflection Span in millimetres x x x x x x x x x x x x x x x x x x x x SEtion modulus PER 305mm OF WIDTH Tru-Weld grating meets N.A.A.M.M. standards. *All weights will increase by 5% when galvanized. 20 NOR GRATING > (SA) (anada)

21 heavy duty bar grating heavy duty tru-weld type HD-19 Bearing Bars: 1 3/16 centers Panel Sizes: 3 0 nomimal width x 20 for 1/4 only 2 0 nomimal width x 20 for 3/8 only type hd-19 IMPERIAL LEGEND = Safe niform Load (lbs./ft. 2 ) = Safe oncentrated Load (lbs./foot of grating width) Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 20,000 P.S.I. bearing bar size (inches) Approx. Weight (lbs./ft 2 ) 19-4 Load/ Deflection Span in feet and inches x 1/ x 3/ /4 x 1/ /4 x 3/ /2 x 1/ /2 x 3/ /4 x 1/ /4 x 3/ x 1/ x 3/ /4 x 1/ /4 x 3/ /2 x 1/ /2 x 3/ x 1/ x 3/ /2 x 1/ /2 x 3/ x 1/ x 3/ SEtion modulus PER FOOT OF WIDTH Heavy Duty bar grating Tru-Weld grating meets N.A.A.M.M. standards. *All weights will increase by 5% when galvanized (anada) (SA) < NOR GRATING 21

22 heavy duty bar grating heavy duty special mesh (metric) heavy duty close mesh (metric) Type HD-24 Metric Multiply load values by 1.25 as per table on page 20. *All weights will increase by 5% when galvanized. Bar grating Heavy Duty Deflections as per table on page 20. Dimensions shown are out to out of bearing bars. All metric dimensions are based on a soft conversion. # of Bars close mesh Type HD-24 Metric 6mm 9.5mm metric Panel width in millimetres standard mesh Type HD-30 Metric 6mm 9.5mm wide mesh Type HD-35 Metric 6mm 9.5mm wide mesh Type HD-48 Metric 6mm 9.5mm wide mesh Type HD-60 Metric 2 30 n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a mm 9.5mm heavy duty wide mesh (metric) Type HD-35 Metric Multiply load values by 0.86 as per table on page 20. Type HD-48 Metric Multiply load values by 0.63 as per table on page 20. Type HD-60 Metric Multiply load values by 0.50 as per table on page NOR GRATING > (SA) (anada)

23 heavy duty bar grating heavy duty special mesh heavy duty close mesh Type HD-15 Multiply load values by 1.25 as per table on page 21. *All weights will increase by 5% when galvanized. Deflections as per table on page 21. Dimensions shown are out to out of bearing bars. # of Bars close mesh Type HD-15 1/4 3/8 standard mesh Type HD-19 1/4 imperial Panel width in inches 3/8 wide mesh Type HD-22 1/4 3/8 wide mesh Type HD-30 1/4 3/8 wide mesh Type HD /16 n/a 1 7/16 1 9/16 1 5/8 1 3/4 2 1/8 2 1/4 2 5/8 2 3/ /8 n/a 2 5/8 2 3/ / / / /16 n/a 3 13/ /16 4 3/8 4 1/2 5 7/ /8 7 1/2 5 4 n/a 5 5 1/8 5 3/4 5 7/8 7 3/4 7 7/8 9 3/4 9 7/ /16 n/a 6 3/16 6 5/16 7 1/8 7 1/4 9 5/8 9 3/4 12 1/8 12 1/ /8 n/a 7 3/8 7 1/2 8 1/2 8 5/8 11 1/2 11 5/8 14 1/2 14 5/ /16 n/a 8 9/ /16 9 7/ /8 13 1/2 16 7/ /4 n/a 9 3/4 9 7/8 11 1/4 11 3/8 15 1/4 15 3/8 19 1/4 19 3/ /16 n/a 10 15/ / /8 12 3/4 17 1/8 17 1/4 21 5/8 21 3/ /8 n/a 12 1/8 12 1/ / / / /16 n/a 13 5/ / /8 15 1/2 20 7/ / /2 n/a 14 1/2 14 5/8 16 3/4 16 7/8 22 3/4 22 7/8 28 3/ /16 n/a 15 11/ / /8 18 1/4 24 5/8 24 3/4 31 1/ /8 n/a 16 7/ /2 19 5/8 26 1/2 33 1/ /16 n/a 18 1/ / / /8 35 7/ /4 n/a 19 1/4 19 3/8 22 1/4 22 3/8 30 1/ /16 n/a 20 7/ / /8 23 3/4 32 1/ /8 n/a 21 5/8 21 3/ /16 n/a 22 13/ / /8 35 7/ n/a /8 27 3/ /16 n/a 25 3/ / /8 n/a 26 3/8 30 1/ /16 n/a 27 9/ / /4 n/a 28 3/4 33 1/ /16 n/a 29 15/ / / / / / /8 1/4 3/8 Heavy Duty bar grating heavy duty wide mesh Type HD-22 Multiply load values by 0.86 as per table on page 21. Type HD-30 Multiply load values by 0.63 as per table on page 21. Type HD-38 Multiply load values by 0.50 as per table on page (anada) (SA) < NOR GRATING 23

24 aluminum standard mesh bar grating aluminum information Aluminum Standard Mesh Bar grating Fisholow Rectangular and I-Bar Grating Fisholow Aluminum Bar Gratings employ a unique interlocking system that joins the bearing bars and cross rods together in panels of exceptional rigidity and strength. Lightweight, corrosion-resistant, non-sparking alloys are ideal for pedestrian platforms in chemical, petroleum, and food processing plants. Fisholow gratings is recommended in most water and waste water treatment facilities and is becoming increasingly popular for use in architectural building designs. Fisholow Aluminum Bar Grating is available in two bar profiles: Rectangular Bar and I-bar. Similar to Tru-Weld Steel Bar Grating, Fisholow Rectangular Bar Grating is offered with a plain or serrated surface. Fisholow I-Bar Grating produces exceptional load ratings at a fraction of the weight of its rectangular counterpart, and is designed with a slip resistant corrugated surface on the top of each I-bar. Both Rectangular Bar and I-Bar styles are available in special mesh options. rectangular bar i-bar 24 NOR GRATING > (SA) (anada)

25 aluminum standard mesh bar grating aluminum stair treads standard tread detail Aluminum Tread with corrugated angle nosing (Standard) Fisholow treads with standard corrugated angle nosing are strong, lightweight, and self-cleaning. They are ideal for applications requiring corrosion resistance, non-sparking, and rust proof grating. The corrugated angle nosing insures maximum visibility and underfoot safety where needed most. Aluminum Standard Mesh End Plate Width and Hole Pattern Dimensions aluminum Tread with aluminum abrasive nosing (Special order) The optional cast aluminum abrasive nosing offers a superior slip resistance on the leading edge of the tread. bar grating # of Bars TREAD WIDTH (Type 19-4 Only) METRI IMPERIAL (inches) A dimension (Outer Slot) METRI IMPERIAL (inches) B dimension (Inner Slot) METRI IMPERIAL (inches) / /2 n/a n/a / /2 n/a n/a / /2 n/a n/a / / / / / /2 For tread widths 9 3/4, 10 15/16 & 12 1/8, standard end plate is complete with 2 slots. See B dimension in chart. maximum recommended tread lengths METRI bearing bar size IMPERIAL (inches) METRI maximum lenth of tread (Type 19-4 Only) Plain Serrated IMPERIAL (ft. & in.) METRI IMPERIAL (ft. & in.) 25 x x 3/ x /4 x 3/ x /2 x 3/ x /4 x 3/ Note: 1/8 (3.2mm) bearing bar not recommended. Note: Bolts for mounting to stringers are not included. How to Order When ordering or specifying Fisholow treads, please confirm: Type, bar size, and surface of grating Type of nosing corrugated angle nosing is standard Width of tread Length of tread Number of treads Shipping and tagging instructions Example: Nucor Grating Fisholow treads, c/w 1 1/4 x 3/16 serrated rectangular-bar aluminum bar grating, corrugated angle nosing and standard end plates, 12 1/8 wide x 30 long, 150 pcs, tagged Project AB (anada) (SA) < NOR GRATING 25

26 aluminum standard mesh bar grating standard fisholow type 30 (Metric) Bearing Bars: 30mm centers, 6063T6 ross Bars: 6063T5 Stock panels: 915mm nominal width x 7315mm long aluminum type 30 metric Aluminum Standard Mesh Bar grating 26 METRI LEGEND = Safe niform Load (kpa) = Safe oncentrated Load (kn/metre of grating width) D = Deflection Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of MPa. All metric dimensions are based on a soft conversion. For Fisholow I-bar loading, use the equivalent depth 4.8mm bar size values in this load table. bearing bar size Approx. Weight (kg/m 2 ) 25 x x x x x x x x x x bearing bar size Load/ Deflection Span in millimetres D D D For serrated surface, increase depth by one size. D D D D D D D D D D D D D D D D D I-Bar weights (metric) weights (kg/m 2 ) x 6 n/a x 6 n/a x 6 n/a x 6 n/a x 6 n/a x 6 n/a x 6 n/a NOR GRATING > (SA) (anada) Spans and loads in the pink shaded area exceed a deflection of 6mm for uniform loads of 5kPa. Experience has shown that 6mm deflection is the maximum deflection to give pedestrian comfort, but can be exceeded for other types of loads at the discretion of the engineer. SEtion modulus PER 305mm OF WIDTH Fisholow grating meets N.A.A.M.M. standards.

27 aluminum standard mesh bar grating standard fisholow type 19 Bearing Bars: 1 3/16 centers, 6063T6 ross Bars: 6063T5 Stock panels: 3 nominal width x 24 long aluminum type 19 IMPERIAL LEGEND = Safe niform Load (lbs./ft. 2 ) = Safe oncentrated Load (lbs./foot of grating width) D = Deflection (inches) Loads and deflections given in this table are theoretical and are based on a maximum allowable fibre stress of 12,000 P.S.I. For Fisholow I-bar loading, use the equivalent depth 3/16 bar size values in this load table. bearing bar size (inches) Approx. Weight (lbs./ft. 2 ) 1 x 1/ x 3/ /4 x 1/ /4 x 3/ /2 x 1/ /2 x 3/ /4 x 3/ x 3/ /4 x 3/ /2 x 3/ bearing bar size (inches) Load/ Deflection Span in Feet and inches D D D For serrated surface, increase depth by one size. D D D D D D D D D D D D D D D D D I-Bar weights (imperial) weights (lbs./ft 2 ) x 1/4 n/a /4 x 1/4 n/a /2 x 1/4 n/a /4 x 1/4 n/a x 1/4 n/a /4 x 1/4 n/a /2 x 1/4 n/a Spans and loads in the pink shaded area exceed a deflection of 1/4 for uniform loads of 100 lbs/sq. ft. Experience has shown that 1/4 deflection is the maximum deflection to give pedestrian comfort, but can be exceeded for other types of loads at the discretion of the engineer. SEtion modulus PER FOOT OF WIDTH (anada) (SA) < NOR GRATING Fisholow grating meets N.A.A.M.M. standards. Aluminum Standard Mesh bar grating

28 aluminum special mesh bar grating aluminum special mesh Aluminum Special Mesh Bar Grating is a non-stocked specialty item. For the most cost effective and readily available aluminum bar grating option, choose Standard Fisholow Type 19-4 (Type Metric). Aluminum Special Mesh special close mesh (metric) Deflections as per table on page 26. Type 18 Metric Multiply load values by 1.72 as per table on page 26. Type 18 Metric is not available in I-bar style bearing bars. special close mesh Deflections as per table on page 27. Type 11 Multiply load values by 1.72 as per table on page 27. Type 11 is not available in I-bar style bearing bars. Bar grating Type 24 Multiply load values by 1.25 as per table on page 26. special wide mesh (metric) Deflections as per table on page 26. Type 15 Multiply load values by 1.25 as per table on page 27. special wide mesh Deflections as per table on page 27. Type 48 Metric Multiply load values by 0.63 as per table on page 26. Type 30 Multiply load values by 0.63 as per table on page 27. Type 60 Metric Multiply load values by 0.50 as per table on page 26. Type 38 Multiply load values by 0.50 as per table on page 27. For panel widths, see steel panel width charts located on pages 16 and 17. All types of aluminum bar grating available up to 3 feet (915mm) nominal width. 28 NOR GRATING > (SA) (anada)

29 fiberglass reinforced plastic (frp) grating (anada) (SA) < NOR GRATING 29

30 molded frp grating molded frp information molded Fibreglass reinforced plastic (FRP) grating Molded FRP FRP grating Molded Fiberglass Reinforced Plastic (FRP) Grating is manufactured in an open, heated mold. ontinuous E-glass fibers are interwoven in alternating layers while being completely wetted out with thermosetting resin systems. This continuous process produces an integral, one piece construction which provides resilience and bi-directional strength. Although the concave profile of standard plain surface Molded FRP Grating provides excellent anti-skid properties, an integral grit surface can be supplied for additional slip resistance. Other benefits include: orrosion Resistant Non-Rusting Fire-Retardant Non-onductive Light Weight Easy to Install nlimited olor Options Fabrication How to Order Molded FRP Grating When ordering or specifying Molded FRP Grating, please confirm: Type Resin olor Top Surface Sheet Size As with our other grating products, Nucor Grating offers full fabrication services with FRP grating. We can also supply a variety of FRP structural shapes that may be associated with an FRP grating project. Please call us to discuss any of your custom platform and stair requirements. molded frp grating resin systems Type Description Resin orrosion Resistance flame spread rating AN* Architectural Grade Non Fire Retardant Orthophthalic Good Not Rated AF* Architectural Grade Fire Retardant Orthophthalic Good lass 1:25 or Less FF Food Grade Fire Retardant Isophthalic Very Good lass 2:30 or Less IF Industrial Grade Fire Retardant Isophthalic Very Good lass 1:25 or Less F hemical Proof Fire Retardant Vinyl Ester Excellent lass 1:25 or Less R+ hemical Proof Fire Retardant Plus Vinyl Ester Excellent lass 1:10 or Less *Stocked at most warehouses in dark grey color, grit top or smooth top. Example: Nucor Grating Molded FRP 1 1/2 deep square mesh, AN (Architectural Grade, Non Fire Retardant), dark grey, grit top, 4 x 12 sheets installation FRP grating sheet size and lightweight construction permit simple and economical installation. Fasteners, supports and hold-down clips permit total flexibility in achieving the desired configuration of the final installation. onventional hand tools such as a hack saw, sabre saw, band saw or disc saw with metal cutting blade can be used to cut grating on-site and to cut around special openings as required. ut ends should be treated with Edge Sealing Kits. 30 NOR GRATING > (SA) (anada)

31 molded frp grating molded frp types 1 rectangular mesh 1 square mesh 1 1/2 square mesh 2 square mesh 1 x 4 x 1 (25mm x 100mm x 25mm) 1 1/2 x 1 1/2 x 1 (38mm x 38mm x 25mm) 1 1/2 x 1 1/2 x 1 1/2 (38mm x 38mm x 38mm) 2 x 2 x 2 (51mm x 51mm x 51mm) Panel size feet Approx. Weight lbs./ft. 2 (kg/m 2 ) 1 Rectangular Mesh 4 x 12 (1220 x 3658) 3.1 (15.13) 3 x (915 x 3048) (15.13) 1 Square Mesh 4 x (1220 x 3658) (12.2) 3 x (915 x 3048) (12.2) 1 1/2 Square Mesh 4 x (1220 x 3658) (18.1) 3 x (915 x 3048) (18.1) 2 Square Mesh 4 x 12 4 (1220 x 3658) (19.53) Approx. shipping weight lbs. (kg) 149 (67.5) 93 (42) 120 (55) 75 (34) 180 (82) 111 (50) 192 (87) bearing bar size inches ross bar size inches WIDTH SPAE - WIDTH SPAE - 5/16 (8) 5/16 (8) 1/4 (6) 1/4 (6) 1/4 (6) 1/4 (6) 1/4 (6) 1 (25) 1 (25) 1 1/2 (38) 1 1/2 (38) 1 1/2 (38) 1 1/2 (38) 2 (51) 5/16 (8) 5/16 (8) 1/4 (6) 1/4 (6) 1/4 (6) 1/4 (6) 1/4 (6) 4 (100) 4 (100) 1 1/2 (38) 1 1/2 (38) 1 1/2 (38) 1 1/2 (38) 2 (51) Top surface Plain or Grip Top Plain or Grip Top Plain or Grip Top Plain or Grip Top Plain or Grip Top Plain or Grip Top Plain or Grip Top Molded FRP grating meets O.S.H.A. specifications paragraph (a) 9. % open area 59% 59% 70% 70% 70% 70% 72% Molded FRP FRP grating Allowable Loads and Deflections Loads below are based on a minimum safety factor of 3 or maximum deflection of 1% of the span. METRI LEGEND = Safe niform Load (kg/m 2 ) = Safe oncentrated Load (kg/m of grating width) D = Deflection IMPERIAL LEGEND = Safe niform Load (lb./ft. 2 ) = Safe oncentrated Load (lbs./ft of grating width) D = Deflection (in.) style Load/ Deflection span in MILLIMETRES D Square Mesh D D Rectangular Mesh D /2 D Square Mesh D * D Square Mesh 4462* D *Represents Shear Force Governs style Load/ Deflection span in inches 12" 18" 24" 36" 48" 60" D Square Mesh D D Rectangular Mesh D /2 D Square Mesh D * D Square Mesh D *Represents Shear Force Governs (anada) (SA) < NOR GRATING 31

32 pultruded frp grating pultruded frp information Pultruded FRP PLTRDED FRP GRATING Pultruded FRP Grating has all the benefits of Molded FRP Grating including corrosion resistance, high strength to weight ratio, and ease of installation. With its high fiberglass content and I-bar or T-bar style bearing bars, Pultruded FRP Grating has increased unidirectional strength and stiffness to accommodate longer span conditions. Pultruded FRP Gratings are offered in a variety of bar profiles and spacings, including close mesh options that are designed for non-motorized wheel traffic and ADA compliance. Pultruded FRP grating types Pultruded FRP I-Bar Types Pultruded FRP Resins Pultruded FRP grating is available in two resin bases Isophthalic Polyester and Vinyl Ester. Isophthalic Polyester resin is ideal for most industrial applications and is available in standard light grey, yellow, or green. Vinyl Ester resin offers superior corrosion resistance and comes standard dark grey. Both are fire retardant with ASTM E84 flame spread rating lass 1:25 or less. Standard panel sizes are 4 x 20 (1219mm x 6096mm), however custom panel sizes are available. ustom colors are also available. How to Order Pultruded FRP Grating FRP grating part number METRI (kg/m 2 ) Approx. Weight IMperial (lbs./ft. 2 ) X Dimension OPen space metric IMperial (inches) Y Dimension Load Bar enters metric IMperial (inches) % open area I- 1 Deep I % I % I % I- 1 1/4 Deep I % I % I- 1 1/2 Deep I % I % I % When ordering or specifying Pultruded FRP Grating, please confirm: Type Resin olor Top Surface Sheet Size Example: Nucor Grating Pultruded FRP I-6015 (I-bar 60% open, 1 1/2 deep), Vinyl Ester resin (hemical Grade, Fire Retardant), dark grey, grit top, standard 4 x 20 sheets load table information Load Tables Available pon Request Pultruded FRP T-Bar Types part number METRI (kg/m 2 ) Approx. Weight IMperial (lbs./ft. 2 ) X Dimension OPen space metric IMperial (inches) Y Dimension Load Bar enters metric IMperial (inches) % open area T- 2 Deep T % T % 32 NOR GRATING > (SA) (anada)

33 grating fastening methods (anada) (SA) < NOR GRATING 33