Floor Gratings And Stair Treads

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1 Floor Gratings And Stair Treads Always an effective solution grating technology

2 perfect in form STACO GRATINGS. Staco s manufacturing plants provide a complete range of high quality grating and stair treads, in mild steel, aluminium and stainless steel. Staco provide a solution for every application, from flooring and balustrade to cladding materials. To ensure the best product possible we either galvanize and powder coat in our own group of companies or work with a select few companies where our needs for quality are known and accepted. Staco Gratings are synonymous with an attractive price to quality ratio, innovative technology and outstanding service. Its vast range of products is ubiquitous in the residential sector, at garages and coachbuilders, offshore applications, shipbuilding, civil engineering and many other industries. Our gratings, treads and associated products also provide a genuine contribution to the visible architecture of countless buildings and projects. We have selected items in our most popular products available from stock. Although Staco factories all use high-tech machinery, we also consider manual skill to be essential when it comes to manufacturing special custom products and constructional gratings under tight deadlines. Our experts are eager to help you find the suitable solution, giving advice on subjects like material strength, complex grating and flooring layouts and the creation of technical designs. In a nutshell, Staco is a dependable and client focused partner. The power of the group 2 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

3 a powerful network Staco Gratings are part of ROTO staco has sites in: Staco is part of ROTO Netherlands; Belgium; Germany; Czech Republic; Luxemburg; Poland; France; United Kingdom; Russia; Bulgaria; Grating Technology for customised products, call staco Gratings T +44 (0)

4 Floor Gratings and Stair Treads Gratings and Treads Glossary page 6 Fasteners for Gratings and Treads page 7 Tolerances Types RR, RH, rk page 7 pressed gratings type rr page 8 heavy-duty gratings type rh page 10 full gratings type rk page 12 load tables page 14 Stair treads type RR/RH page 20 Spiral stairs with RR treads page 21 Plastic gratings type GRP page 22 hot-dip galvanizing page 26 electrostatic powder coating page 27 Table of Contents Staco Gratings provide a solution for every application. Many of these solutions are described in this brochure. Our website not only provides a great deal of additional information, including current stock and interactive modules for strength and permeability analyses. The website also allows you to request or download our other brochures; Perfo Planks and Stair Treads, SP Forge Welded Gratings and Treads and Architectural Gratings. For more information go to 4 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

5 Grating Technology for customised products, call staco Gratings T +44 (0)

6 technical specifications for gratings and treads Gratings and treads glossary Bearing bar Cross bar Mesh size The bars that are required to take the load and should be supported at both ends. This is the first and/or underlined size. The maximal length of bearing bars is 3000 mm. Clear Span The cross bars are made of flat material. These are the bars that join the bearing bars. The maximal length of cross bars is 2000 mm. Edges The c.t.c. mesh size is the distance between the bearing bars (a), followed by the distance between the cross bars (b) Lower edge This is the clear width between the two supports. A grating can cover multiple supports. Edging is applied to the grating at the ends of the bearing bars and cross bars (i.e. right round). A strip welded to the grating. This strip projects below the grating. Kicker plate Anti-slip Shaping A strip welded to the grating. This strip projects above the grating. The anti-slip property is accentuated by using serrations. Both bearing bars and cross bars can be given serrated edges. The general term for all holes and cut-outs in the grating. Gross grating surface area Toe edge nosing + Side plates Hole size / Clear width The total grating surface area before it is cut to size and any shaping is carried out. (see dotted line) An anti-slip toe edge nosing has Net grating surface area been fitted to the front of the steps. The net surface area remaining after This creates a clear visual distinction cutting the grating to size. between the separate steps, and also increases load capacity. The steps are fitted with welded side plates for mounting to the stair stringers, Minimum bearing bar overlap which are predrilled with the required 30 mm 30 mm mounting holes. The minimum overlap of the grating = bearing bar height, but not less than 30 mm. The net internal dimensions, between the mounting profiles, or the net recess dimensions. The grating size must be 4-8 mm smaller than the hole size. 6 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

7 technical specifications for gratings and treads fasteners for gratings and treads Fastening set Coupling set Hook bolt J-hook set upper clamp (saddle) 2 x upper clamps (saddle) upper clamp (saddle) upper clamp (saddle) bolt + nut M8 2 x bolt + nut M8 U-hook, various sizes J-hook, various sizes lower bracket 1 x solid lower bracket bolt M8 bolt M8 (coupling strip) Fastening set with plate Hinge Welded lug 15 plate 2 x bar 20 x 3 welded lug to bolt + nut M8 1 x bolt with ring drawing detail lower bracket 2 x gasket ring 2 x cotter pin tolerances types rr, rh, rk D1 D2 p q B B p L = ± 0, - 4 mm. B = ± 0, - 4 mm. D1 - D2 = max. 0,01 x L L L Grating deflection p = max. 0,0025 x L q = max. 0,0025 x B Length of grating (L) = length of bearing bars Width of grating (B) = length of cross bars c; e; f = max mm g = max. ± 1,5 mm d = max. ± 4 mm h; i = +8-0 mm S End of bearing bar S = max. 0,1 x H Height of protruding cross bar max. 1,5 mm Higher or lower border strip, r = max. 1 mm r r f f hh Oblique bearing bars f = max. 0,1 x H h = max. ± 3 mm Concave or spheroid along bearing bar h h h = max. 3 mm if L < 600 h=max. 1/200 x L if L > 600 max. 8 mm h = max. 3 mm if L < 600 h=max. 1/200 x L if L > 600 max. 8 mm Concave or spheroid along cross bar h h h = max. 3 mm if B < 600 h = max. 1/200 x L if B > 600 max. 8 mm h = max. 3 mm if B < 600 h = max. 1/200 x L if B > 600 max. 8 mm Grating Technology for customised products, call staco Gratings T +44 (0)

8 Pressed gratings type RR The pressed gratings are manufactured of solid strip steel bearing bars and cross bars to form a sturdy grid. Dimensioning is very precise thanks to the sophisticated, computerized production process in which the strip steel is unwound, straightened, punched and cut off extremely accurately. The cross bars are automatically pressed into the bearing bars and enclosed by an edge, which guarantees stable joints. Minimum bearing bar dimension 20 x 2 mm. Maximum bearing bar dimension 70 x 3 mm. 8 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

9 gratings type RR Pressed gratings type RR Bearing bars: 25 x 2 30 x 2 35 x 2 40 x 2 45 x 2 50 x 2 60 x 2 mm 25 x 3 30 x 3 35 x 3 40 x 3 45 x 3 50 x 3 60 x 3 70 x 3 mm 20 mm high on special request Crossbars: 10 x 2 10 x 3 12 x 2 mm (12 x 2 and 12 x 3 for versions with anti-slip cross bars) Anti-slip versions for better grip: Type RR.AD Serrated bearing bars. Type RR.AV Serrated cross bars. Type RR.ADV Serrated bearing and cross bars. Edge bar: 2 mm or 3 mm or upon request For anti-slip classes, stock gratings and treads, go to Choice of the following materials: - steel quality S235jr - stainless-steel quality AISI 304 (1.4301) - stainless-steel quality AISI 316L (1.4404) - aluminium quality AlMg3-G22 Examples of edge bar The table below illustrates the possible variations in mesh size. Type RR 99,9 9 Mesh size 88,8 8 = Option 77,7 7 66,6 6 55,5 5 50,0 0 44,4 4 33,3 3 22,2 2 Flat edge Butted edge Profile edge T-profile edge Bearing bars c.t.c. 16,6 6 11,1 1 11,1 1 16,6 6 22,2 2 33,3 3 44,4 4 50,0 0 55,5 5 66,6 6 77,7 7 88,8 8 99,9 9 Cross bars c.t.c. Grating Technology for customised products, call staco Gratings T +44 (0)

10 heavy-duty gratings type RH This type of grating is exceptionally well suited to extra heavy-duty loads. Heavy-duty material is used in production, seriously increasing load capacity. These gratings are fitted as standard with a flat edging, with the thickness of the edge equalling that of the bearing bars. Furthermore, special versions are available on request. For all types, anti-slip serrations may be applied to both the bearing bars and the cross bars (see photo). Minimum bearing bar dimension 25 x 4 mm Maximum bearing bar dimension 150 x 5 mm 10 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

11 gratings type RH heavy-duty gratings type rh Bearing bars: 4 mm and 5 mm thick from 25 to 150 mm high Cross bars: - material steel quality S235jr - 10 x 3 mm, 12 x 3 mm and 12 x 5 mm - material stainless-steel quality AISI 304 (1.4301) and AISI 316L (1.4404) - 15 x 5 mm - material aluminium quality AlMg3-G22-15 x 5 mm (applies to both 4 and 5 mm bearing bars). - from 100 mm bearing bar height, a cross bar size of 20 x 5 mm applies to all materials types. Edge bar: Same as bearing bars in flat 4 and 5 mm. Other options on request. Choice of the following materials: - steel quality S235jr - stainless-steel quality AISI 304 (1.4301) - stainless-steel quality AISI 316L (1.4404) - aluminium quality AlMg3-G22 Anti-slip versions for better grip: Type RH.AD Serrated bearing bars. Type RH.AV Serrated cross bars. Type RH.ADV Serrated bearing and cross bars. For anti-slip classes, please refer to Example of edge bar The table below illustrates the possible variations in mesh size. Type RH Mesh size = Option = On special request 133,3 3 99,9 9 66,6 6 50,0 0 44,4 4 Flat edge Bearing bars c.t.c. 33,3 3 22,2 2 16,6 6 16,6 6 22,2 2 33,3 3 44,4 4 50,0 0 66,6 6 99,9 9 Cross bars c.t.c. Grating Technology for customised products, call staco Gratings T +44 (0)

12 full gratings type rk This type of grating is fitted with identical bars in both directions according to the so-called full grating principle. With their visual uniformity, they offer architects ample scope for exciting and imaginative concepts. They are frequently used as sun shading and cladding. These gratings can be supplied powdercoated in all standard RAL colours according to the VISEM norms, to form an attractive and intriguing key element in the total concept. 12 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

13 gratings type rk full gratings type rk Bearing bars: 30 x 2 to 50 x 2 mm 30 x 3 to 50 x 3 mm Edge bar: - Flat edge, - Butted edge Other options on request Anti-slip versions for better grip: Type RK.AD Serrated bearing bars. For anti-slip classes, go to Choice of the following materials: - steel quality S235jr - stainless-steel quality AISI 304 (1.4301) - stainless-steel quality AISI 316L (1.4404) - aluminium quality AlMg3-G22 Examples of edge bar The table below illustrates the possible variations in mesh size. Type RK Mesh size = Option = On special request 99,9 9 88,8 8 77,7 7 66,6 6 55,5 5 Flat edge Butted edge 50,0 0 44,4 4 Bearing bars c.t.c. 33,3 3 22,2 2 22,2 2 33,3 3 44,4 4 50,0 0 55,5 5 66,6 6 77,7 7 88,8 8 99,9 9 Cross bars c.t.c. Grating Technology for customised products, call staco Gratings T +44 (0)

14 Load table for gratings type RR material MILD STEEL S235jr, r d = 235 N/mm 2, galvanized acc. to EN-ISO 1461 Staco Gratings type RR Mesh size 33,33 x 33,33 mm c.t.c. Uniformly distributed load F v [dan/m 2 ] bearing bar płaskownik [mm] nośny [mm] 20 x 2 20 x 3 25 x 2 25 x 3 30 x 2 30 x 3 35 x 2 35 x 3 40 x 2 40 x 3 45 x 2 45 x 3 50 x 2 50 x 3 60 x 2 60 x 3 rozstaw span podpór L [mm] L [mm] Fv fv 0,03 0,07 0,12 0,19 0,28 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,03 0,07 0,12 0,19 0,28 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,06 0,10 0,16 0,22 0,30 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,06 0,10 0,16 0,22 0,30 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,05 0,08 0,13 0,19 0,25 0,33 0,42 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,05 0,08 0,13 0,19 0,25 0,33 0,42 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,04 0,07 0,11 0,16 0,22 0,28 0,36 0,44 0,54 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,04 0,07 0,11 0,16 0,22 0,28 0,36 0,44 0,54 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,03 0,06 0,10 0,14 0,19 0,25 0,31 0,39 0,47 0,56 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,02 0,03 0,06 0,10 0,14 0,19 0,25 0,31 0,39 0,47 0,56 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,01 0,03 0,06 0,09 0,12 0,17 0,22 0,28 0,35 0,42 0,50 0,58 0,68 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,01 0,03 0,06 0,09 0,12 0,17 0,22 0,28 0,35 0,42 0,50 0,58 0,68 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,31 0,38 0,45 0,53 0,61 0,70 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,31 0,38 0,45 0,53 0,61 0,70 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,01 0,02 0,04 0,06 0,09 0,13 0,17 0,21 0,26 0,31 0,37 0,44 0,51 0,58 0,66 0,75 0,84 0,94 1,00 1,05 1,10 1,15 1,20 1,25 Fv fv 0,01 0,02 0,04 0,06 0,09 0,13 0,17 0,21 0,26 0,31 0,37 0,44 0,51 0,58 0,66 0,75 0,84 0,94 1,00 1,05 1,10 1,15 1,20 1,25 grating masa weight krat [kg/m 2 ] paint powierzchnia surface farby [m [ 2 ] m 2 ] 16 2,14 21,5 2,20 18,5 2,47 25,5 2,53 21,5 2, , , , , , , ,90 32,5 4, , , ,89 Value of max. load with 1.5 safety factor applied (γ f = 1,5) Value of max. load unfactored (γ f = 1,0) Legend: Load multipliers tabel for meshes (c.t.c.) other than 33,33 x 33,33 mm F v = Load data for uniformly distributed load [dan/m 2 ] f v = Deflection in [cm] in case of load F v F p = Load data for point load [dan] on 200x200 mm surface mesh wielkość size oczek c.t.c. w [mm] osiach [mm] multipl. mnożnik factor dla (uniformly obciążenia rozłożonego distributed równomiernie load) powierzchnia free passage prześwitu for 2 mmdla płaskowników bearing bars nośnych 2 mm powierzchnia free passage prześwitu for 3 mm dla płaskowników bearing bars nośnych 3 mm f p = Deflection in [cm] in case of load F p Overlap = height of bearing bar, but not less than 30 mm Go to to calculate the missing parameters automatically using our calculation module. 11,11 x 11,11 3,00 66,8% 59,5% 16,66 x 16,66 2,06 77,0% 71,8% 22,22 x 22,22 1,50 82,4% 78,4% 33,33 x 33,33 1,00 87,9% 85,2% 44,44 x 44,44 0,75 90,8% 88,7% 50,00 x 50,00 0,67 91,8% 89,9% 66,66 x 66,66 0,50 93,7% 92,3% 14 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

15 Load table for gratings type RR material MILD STEEL S235jr, r d = 235 N/mm 2, galvanized acc. to EN-ISO 1461 Staco Gratings type RR Mesh size 33,33 x 33,33 mm c.t.c. Point load on 200 x 200 mm surface F p [dan] bearing płaskownik bar nośny [mm] [mm] 20 x 2 20 x 3 25 x 2 25 x 3 30 x 2 30 x 3 35x2 35 x 3 40 x 2 40 x 3 45 x 2 45 x 3 50 x 2 50 x 3 60 x 2 60 x 3 rozstaw span podpór L [mm] L [mm] Fp fp 0,03 0,07 0,12 0,18 0,25 0,34 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,03 0,07 0,12 0,18 0,25 0,34 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,05 0,09 0,14 0,20 0,27 0,35 0,44 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,05 0,09 0,14 0,20 0,27 0,35 0,44 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,05 0,08 0,12 0,17 0,23 0,29 0,37 0,45 0,54 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,05 0,08 0,12 0,17 0,23 0,29 0,37 0,45 0,54 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,04 0,07 0,10 0,15 0,20 0,25 0,32 0,39 0,47 0,55 0,64 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,04 0,07 0,10 0,15 0,20 0,25 0,32 0,39 0,47 0,55 0,64 0,70 0,75 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,03 0,06 0,09 0,13 0,17 0,22 0,28 0,34 0,41 0,48 0,56 0,65 0,74 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,02 0,03 0,06 0,09 0,13 0,17 0,22 0,28 0,34 0,41 0,48 0,56 0,65 0,74 0,80 0,85 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,30 0,36 0,43 0,50 0,58 0,66 0,75 0,84 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,30 0,36 0,43 0,50 0,58 0,66 0,75 0,84 0,90 0,95 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,01 0,03 0,05 0,07 0,10 0,14 0,18 0,22 0,27 0,33 0,39 0,45 0,52 0,59 0,67 0,76 0,85 0,94 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,01 0,03 0,05 0,07 0,10 0,14 0,18 0,22 0,27 0,33 0,39 0,45 0,52 0,59 0,67 0,76 0,85 0,94 1,00 1,05 1,10 1,15 1,20 1,25 Fp fp 0,01 0,02 0,04 0,06 0,08 0,11 0,15 0,18 0,23 0,27 0,32 0,38 0,43 0,50 0,56 0,63 0,71 0,79 0,87 0,96 1,05 1,14 1,20 1,25 Fp fp 0,01 0,02 0,04 0,06 0,08 0,11 0,15 0,18 0,23 0,27 0,32 0,38 0,43 0,50 0,56 0,63 0,71 0,79 0,87 0,96 1,05 1,14 1,20 1,25 grating masa weight krat [kg/m 2 ] paint powierzchnia surface farby [m [ 2 ] m 2 ] 16 2,14 21,5 2,20 18,5 2,47 25,5 2,53 21,5 2, , , , , , , ,90 32,5 4, , , ,89 Value of max. load with 1.5 safety factor applied (γ f = 1,5) Value of max. load unfactored (γ f = 1,0) Legend: F v = Load data for uniformly distributed load [dan/m 2 ] f v = Deflection in [cm] in case of load F v F p = Load data for point load [dan] on 200x200 mm surface f p = Deflection in [cm] in case of load F p Overlap = height of bearing bar, but not less than 30 mm Go to to calculate the missing parameters automatically using our calculation module. Load multipliers tabel for meshes (c.t.c.) other than 33,33 x 33,33 mm multipl. mnożnik factor dla obciążenia (point load skupionego 200 x 200 na powierzchni mm surface) 200 x 200 mm Wielkość oczek mesh size c.t.c. w osiach bearing wysokość bar płaskownika height [mm] nośnego > [mm] > [mm] [mm] ,11 x 11,11 2,29 2,30 2,31 2,32 2,33 2,35 2,36 2,38 16,66 x 16,66 1,68 1,69 1,70 1,70 1,71 1,72 1,72 1,74 22,22 x 22,22 1,32 1,32 1,33 1,33 1,33 1,34 1,34 1,35 33,33 x 33,33 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 44,44 x 44,44 0,84 0,84 0,84 0,84 0,83 0,83 0,83 0,83 50,00 x 50,00 0,79 0,79 0,78 0,78 0,78 0,78 0,77 0,77 66,66 x 66,66 0,68 0,68 0,67 0,67 0,67 0,66 0,66 0,65 Grating Technology for customised products, call staco Gratings T +44 (0)

16 Load table for gratings type RR material STAINLESS STEEL AISI 304 (1.4301), r d = 185 N/mm 2 Staco Gratings type RR Mesh size 33,33 x 33,33 mm c.t.c. Uniformly distributed load F v [dan/m 2 ] bearing płaskownik bar nośny [mm] [mm] 20 x 2 20 x 3 25 x 2 25 x 3 30 x 2 30 x 3 35 x 2 35 x 3 40 x 2 40 x 3 50 x 2 50 x 3 rozstaw span podpór L [mm] L [mm] Fv fv 0,02 0,06 0,10 0,15 0,22 0,30 0,39 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,06 0,10 0,15 0,22 0,30 0,39 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,04 0,08 0,12 0,18 0,24 0,31 0,40 0,49 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,04 0,08 0,12 0,18 0,24 0,31 0,40 0,49 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,04 0,07 0,10 0,15 0,20 0,26 0,33 0,41 0,49 0,59 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,04 0,07 0,10 0,15 0,20 0,26 0,33 0,41 0,49 0,59 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,01 0,03 0,06 0,09 0,13 0,17 0,22 0,28 0,35 0,42 0,50 0,59 0,69 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,01 0,03 0,06 0,09 0,13 0,17 0,22 0,28 0,35 0,42 0,50 0,59 0,69 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,31 0,37 0,44 0,52 0,60 0,69 0,78 0,85 0,90 0,95 1,00 Fv fv 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,31 0,37 0,44 0,52 0,60 0,69 0,78 0,85 0,90 0,95 1,00 Fv fv 0,01 0,02 0,04 0,06 0,09 0,12 0,16 0,20 0,24 0,30 0,35 0,41 0,48 0,55 0,63 0,71 0,79 0,88 0,98 Fv fv 0,01 0,02 0,04 0,06 0,09 0,12 0,16 0,20 0,24 0,30 0,35 0,41 0,48 0,55 0,63 0,71 0,79 0,88 0,98 grating masa weight krat [kg/m 2 ] paint powierzchnia surface farby [m [ 2 ] m 2 ] 15,2 2,14 20,5 2,20 17,8 2,47 24,4 2,53 20,5 2,80 28,4 2,86 23,1 3,13 32,3 3,18 25,8 3,46 36,3 3, ,11 44,2 4,17 Staco Gratings type RR Mesh size 33,33 x 33,33 mm c.t.c. Point load on 200 x 200 mm surface F p [dan] bearing płaskownik bar nośny [mm] [mm] 20 x 2 20 x 3 25 x 2 25 x 3 30 x 2 30 x 3 35 x 2 35 x 3 40 x 2 40 x 3 50 x 2 50 x 3 rozstaw span podpór L [mm] L [mm] Fp fp 0,02 0,05 0,09 0,14 0,20 0,27 0,35 0,44 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,05 0,09 0,14 0,20 0,27 0,35 0,44 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,04 0,07 0,11 0,16 0,22 0,28 0,35 0,43 0,51 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,04 0,07 0,11 0,16 0,22 0,28 0,35 0,43 0,51 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,04 0,06 0,09 0,13 0,18 0,23 0,29 0,36 0,43 0,51 0,59 0,68 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,04 0,06 0,09 0,13 0,18 0,23 0,29 0,36 0,43 0,51 0,59 0,68 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,30 0,37 0,43 0,51 0,58 0,67 0,76 0,85 0,90 0,95 1,00 Fp fp 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,30 0,37 0,43 0,51 0,58 0,67 0,76 0,85 0,90 0,95 1,00 Fp fp 0,01 0,03 0,05 0,07 0,10 0,13 0,17 0,22 0,27 0,32 0,38 0,44 0,51 0,58 0,66 0,75 0,83 0,93 1,00 Fp fp 0,01 0,03 0,05 0,07 0,10 0,13 0,17 0,22 0,27 0,32 0,38 0,44 0,51 0,58 0,66 0,75 0,83 0,93 1,00 Fp fp 0,01 0,02 0,04 0,06 0,08 0,11 0,14 0,17 0,21 0,26 0,30 0,35 0,41 0,47 0,53 0,60 0,67 0,74 0,82 Fp fp 0,01 0,02 0,04 0,06 0,08 0,11 0,14 0,17 0,21 0,26 0,30 0,35 0,41 0,47 0,53 0,60 0,67 0,74 0,82 grating masa weight krat [kg/m 2 ] paint powierzchnia surface farby [m [ 2 ] m 2 ] 15,2 2,14 20,5 2,20 17,8 2,47 24,4 2,53 20,5 2,80 28,4 2,86 23,1 3,13 32,3 3,18 25,8 3,46 36,3 3, ,11 44,2 4,17 Value of max. load with 1.5 safety factor applied (γ f = 1,5) Value of max. load unfactored (γ f = 1,0) Legend on page Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

17 Load table for gratings type RR material aluminium (AlMg3-G22), r d = 130 N/mm 2 Staco Gratings type RR Mesh size 33,33 x 33,33 mm c.t.c. Uniformly distributed load F v [dan/m 2 ] bearing płaskownik bar nośny [mm] [mm] 25 x 2 25 x 3 30 x 2 30 x 3 35 x 2 35 x 3 40 x 2 40 x 3 45 x 2 45 x 3 50 x 2 50 x 3 rozstaw span podpór L [mm] L [mm] Fv fv 0,04 0,09 0,16 0,25 0,30 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,04 0,09 0,16 0,25 0,30 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,03 0,08 0,14 0,21 0,30 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,03 0,08 0,14 0,21 0,30 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,03 0,07 0,12 0,18 0,26 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,03 0,07 0,12 0,18 0,26 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,03 0,06 0,10 0,16 0,23 0,31 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,03 0,06 0,10 0,16 0,23 0,31 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,05 0,09 0,14 0,20 0,28 0,36 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,05 0,09 0,14 0,20 0,28 0,36 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,05 0,08 0,13 0,18 0,25 0,33 0,41 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,05 0,08 0,13 0,18 0,25 0,33 0,41 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 grating masa weight krat [kg/m 2 ] paint powierzchnia surface farby [m [ 2 ] m 2 ] 6 2,47 8,2 2,53 6,9 2,80 9,6 2,86 7,8 3,13 10,9 3,18 8,7 3,46 12,2 3,51 9,6 3,78 13,5 3,84 10,4 4,11 14,9 4,17 Staco Gratings type RR Mesh size 33,33 x 33,33 mm c.t.c. Point load on 200 x 200 mm surface F p [dan] bearing płaskownik bar nośny [mm] [mm] 25 x 2 25 x 3 30 x 2 30 x 3 35 x 2 35 x 3 40 x 2 40 x 3 45 x 2 45 x 3 50 x 2 50 x 3 rozstaw span podpór L [mm] L [mm] Fp fp 0,04 0,09 0,15 0,24 0,30 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,04 0,09 0,15 0,24 0,30 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,03 0,07 0,13 0,20 0,28 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,03 0,07 0,13 0,20 0,28 0,35 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,03 0,06 0,11 0,17 0,24 0,32 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,03 0,06 0,11 0,17 0,24 0,32 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,03 0,06 0,10 0,15 0,21 0,28 0,36 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,03 0,06 0,10 0,15 0,21 0,28 0,36 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,05 0,09 0,13 0,19 0,25 0,32 0,40 0,49 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,05 0,09 0,13 0,19 0,25 0,32 0,40 0,49 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,04 0,08 0,12 0,17 0,22 0,29 0,36 0,44 0,53 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,04 0,08 0,12 0,17 0,22 0,29 0,36 0,44 0,53 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 grating masa weight krat [kg/m 2 ] paint powierzchnia surface farby [m [ 2 ] m 2 ] 6 2,47 8,2 2,53 6,9 2,80 9,6 2,86 7,8 3,13 10,9 3,18 8,7 3,46 12,2 3,51 9,6 3,78 13,5 3,84 10,4 4,11 14,9 4,17 Value of max. load with 1.5 safety factor applied (γ f = 1,5) Value of max. load unfactored (γ f = 1,0) Legend on page 15 Grating Technology for customised products, call staco Gratings T +44 (0)

18 Load table for gratings type Rh material MILD STEEL S235jr, r d = 235 N/mm 2, galvanized acc. to EN-ISO 1461 Staco Gratings typ RH Mesh size 33,33 x 33,33 mm c.t.c. Uniformly distributed load F v [dan/m 2 ] bearing płaskownik bar nośny [mm] [mm] 25 x 4 30 x 4 30 x 5 40 x 4 40 x 5 50 x 4 50 x 5 60 x 5 70 x 5 80 x 5 90 x x x x x x x 5 rozstaw span podpór L [mm] L [mm] Fv fv 0,02 0,06 0,10 0,16 0,22 0,30 0,40 0,45 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,05 0,08 0,13 0,19 0,25 0,33 0,42 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,05 0,08 0,13 0,19 0,25 0,33 0,42 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,03 0,06 0,10 0,14 0,19 0,25 0,31 0,39 0,47 0,56 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,02 0,03 0,06 0,10 0,14 0,19 0,25 0,31 0,39 0,47 0,56 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fv fv 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,31 0,38 0,45 0,53 0,61 0,70 0,80 0,85 0,90 0,95 1,00 Fv fv 0,01 0,03 0,05 0,08 0,11 0,15 0,20 0,25 0,31 0,38 0,45 0,53 0,61 0,70 0,80 0,85 0,90 0,95 1,00 Fv fv 0,01 0,02 0,04 0,06 0,09 0,13 0,17 0,21 0,26 0,31 0,37 0,44 0,51 0,58 0,66 0,75 0,84 0,94 1,00 Fv fv 0,01 0,02 0,04 0,06 0,08 0,11 0,14 0,18 0,22 0,27 0,32 0,38 0,44 0,50 0,57 0,64 0,72 0,80 0,89 Fv fv 0,01 0,02 0,03 0,05 0,07 0,10 0,12 0,16 0,19 0,24 0,28 0,33 0,38 0,44 0,50 0,56 0,63 0,70 0,78 Fv fv 0,01 0,02 0,03 0,04 0,06 0,08 0,11 0,14 0,17 0,21 0,25 0,29 0,34 0,39 0,44 0,50 0,56 0,62 0,69 Fv fv 0,01 0,01 0,02 0,04 0,06 0,08 0,10 0,13 0,16 0,19 0,22 0,26 0,30 0,35 0,40 0,45 0,50 0,56 0,62 Fv fv 0,01 0,02 0,03 0,05 0,07 0,09 0,12 0,15 0,19 0,23 0,27 0,32 0,37 0,42 0,48 0,54 0,61 0,68 0,75 Fv fv 0,01 0,01 0,02 0,03 0,05 0,06 0,08 0,10 0,13 0,16 0,19 0,22 0,25 0,29 0,33 0,37 0,42 0,47 0,52 Fv fv 0,00 0,01 0,02 0,03 0,04 0,06 0,08 0,10 0,12 0,14 0,17 0,20 0,23 0,27 0,31 0,35 0,39 0,43 0,48 Fv fv 0,00 0,01 0,02 0,03 0,04 0,05 0,07 0,09 0,11 0,13 0,16 0,19 0,22 0,25 0,28 0,32 0,36 0,40 0,44 Fv fv 0,00 0,01 0,02 0,03 0,04 0,05 0,07 0,08 0,10 0,13 0,15 0,18 0,20 0,23 0,27 0,30 0,34 0,37 0,41 grating masa weight krat [kg/m 2 ] Value of max. load with 1.5 safety factor applied (γ f = 1,5) Value of max. load unfactored (γ f = 1,0) Legend: F v = Load data for uniformly distributed load [dan/m 2 ] f v = Deflection in [cm] in case of load F v F p = Load data for point load [dan] on 200x200 mm surface f p = Deflection in [cm] in case of load F p Overlap = height of bearing bar, but not less than 30 mm Go to to calculate the missing parameters automatically using our calculation module. Load multipliers tabel for meshes (c.t.c.) other than 33,33 x 33,33 mm mesh size c.t.c. wielkość oczek [mm] w osiach [mm] multipl. mnożnik factor dla (uniformly obciążenia rozłożonego distributed równomiernie load) powierzchnia free passage prześwitu for 4 mmdla płaskowników bearing bars nośnych 4 mm powierzchnia free passage prześwitu for 5 mmdla płaskowników bearing bars nośnych 5 mm 16,66 x 16,66 2,06 61,4% 48,0% 22,22 x 22,22 1,50 66,4% 59,1% 33,33 x 33,33 1,00 76,6% 71,2% 44,44 x 44,44 0,75 82,0% 77,8% 50,00 x 50,00 0,67 83,8% 80,0% 66,66 x 66,66 0,50 87,6% 84,6% 18 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

19 Load table for gratings type Rh material MILD STEEL S235jr, r d = 235 N/mm 2, galvanized acc. to EN-ISO 1461 Staco Gratings typ RH Mesh size 33,33 x 33,33 mm c.t.c. Point load on 200 x 200 mm surface F p [dan] bearing płaskownik bar nośny [mm] [mm] 25 x 4 30 x 4 30 x 5 40 x 4 40 x 5 50 x 4 50 x 5 60 x 5 70 x 5 80 x 5 90 x 5 100x5 110 x 5 120x5 130 x x x 5 rozstaw span podpór L [mm] L [mm] Fp fp 0,02 0,05 0,09 0,14 0,20 0,27 0,35 0,44 0,50 0,55 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,05 0,08 0,12 0,17 0,23 0,29 0,37 0,45 0,54 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,05 0,08 0,12 0,17 0,23 0,29 0,37 0,45 0,54 0,60 0,65 0,70 0,75 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,03 0,06 0,09 0,13 0,17 0,22 0,28 0,34 0,41 0,48 0,56 0,65 0,74 0,80 0,85 0,90 0,95 1,00 Fp fp 0,02 0,03 0,06 0,09 0,13 0,17 0,22 0,28 0,34 0,41 0,48 0,56 0,65 0,74 0,80 0,85 0,90 0,95 1,00 Fp fp 0,01 0,03 0,05 0,07 0,10 0,14 0,18 0,22 0,27 0,33 0,39 0,45 0,52 0,59 0,67 0,76 0,85 0,94 1,00 Fp fp 0,01 0,03 0,05 0,07 0,10 0,14 0,18 0,22 0,27 0,33 0,39 0,45 0,52 0,59 0,67 0,76 0,85 0,94 1,00 Fp fp 0,01 0,02 0,04 0,06 0,08 0,11 0,15 0,18 0,23 0,27 0,32 0,38 0,43 0,50 0,56 0,63 0,71 0,79 0,87 Fp fp 0,01 0,02 0,03 0,05 0,07 0,10 0,13 0,16 0,19 0,23 0,28 0,32 0,37 0,42 0,48 0,54 0,61 0,67 0,74 Fp fp 0,01 0,02 0,03 0,05 0,06 0,09 0,11 0,14 0,17 0,20 0,24 0,28 0,32 0,37 0,42 0,47 0,53 0,59 0,65 Fp fp 0,01 0,02 0,03 0,04 0,06 0,08 0,10 0,12 0,15 0,18 0,21 0,25 0,29 0,33 0,37 0,42 0,47 0,52 0,58 Fp fp 0,01 0,01 0,02 0,04 0,05 0,07 0,09 0,11 0,14 0,16 0,19 0,23 0,26 0,30 0,34 0,38 0,42 0,47 0,52 Fp fp 0,01 0,01 0,02 0,03 0,05 0,06 0,08 0,10 0,12 0,15 0,18 0,20 0,24 0,27 0,31 0,34 0,39 0,43 0,47 Fp fp 0,01 0,01 0,02 0,03 0,04 0,06 0,07 0,09 0,11 0,14 0,16 0,19 0,22 0,25 0,28 0,32 0,35 0,39 0,43 Fp fp 0,00 0,01 0,02 0,03 0,04 0,05 0,07 0,09 0,10 0,13 0,15 0,17 0,20 0,23 0,26 0,29 0,33 0,36 0,40 Fp fp 0,00 0,01 0,02 0,03 0,04 0,05 0,06 0,08 0,10 0,12 0,14 0,16 0,19 0,21 0,24 0,27 0,30 0,34 0,37 Fp fp 0,00 0,01 0,02 0,02 0,03 0,05 0,06 0,07 0,09 0,11 0,13 0,15 0,17 0,20 0,22 0,25 0,28 0,31 0,35 grating masa weight krat [kg/m 2 ] mesh size c.t.c. wielkość oczek [mm] w osiach [mm] Value of max. load with 1.5 safety factor applied (γ f = 1,5) Value of max. load unfactored (γ f = 1,0) Load multipliers tabel for meshes (c.t.c.) other than 33,33 x 33,33 mm mnożnik multipl. dla obciążenia factor (point skupionego load na 200 powierzchni x 200 mm surface) 200 x 200 mm wysokość bearing bar płaskownika height [mm] nośnego > [mm] > ,66 x 16,66 1,69 1,70 1,71 1,72 1,74 1,75 1,77 1,78 1,80 1,81 1,83 1,85 1,87 1,89 22,22 x 22,22 1,32 1,33 1,33 1,34 1,35 1,35 1,36 1,37 1,38 1,38 1,39 1,40 1,41 1,42 33,33 x 33,33 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 1,00 44,44 x 44,44 0,84 0,84 0,83 0,83 0,83 0,82 0,82 0,82 0,81 0,81 0,80 0,80 0,80 0,79 50,00 x 50,00 0,79 0,78 0,78 0,77 0,77 0,77 0,76 0,76 0,75 0,75 0,74 0,73 0,73 0,72 66,66 x 66,66 0,68 0,67 0,67 0,66 0,65 0,65 0,64 0,63 0,63 0,62 0,61 0,60 0,59 0,58 Maximum load for vehicle passage [dan] (All the factors were calculated in case of direction of passage perpendicular to the bearing bars) obciążenie point load skupione [dan] [dan] kategoria obciążenie wheel powierzchnia loading category of multipl. na on powierzchni 200 x 200 mm 200 x surface 200 mm klasy na load koło obciążenia area współczynnik bridge class mostów [dan] [mm] factor statyczne współczynnik impact factor static zderzenia 1.3 1, x 600 2, x 500 1, x 400 1, x 300 1, x 400 1, x 300 1, x 260 1, x 200 1, x 200 1, Legend on page 18 Grating Technology for customised products, call staco Gratings T +44 (0)

20 treads type rr/rh Grating treads type RR/RH Corresponding grating treads are available for all RR/RH types. The treads are fitted with a safe toe edge nosing and mounting plates for fastening between the stringers. An example of stock treads TR 3-30/33x33 is given below. Type TR 3-30/33 x 33 Bearing bars 30 x 3 mm. Cross bars 10 x 2 mm. Mesh width 33,33 x 33,33 c.t.c. Anti-slip versions for better grip: Type TR.AD Serrated bearing bars. Type TR.AV Serrated cross bars. Type TR.ADV Serrated bearing and cross bars. For stock treads, go to Type RR toe edge nosing mounting plate For anti-slip classes and mounting plate specifications, please refer to For dimensions of mounting plate see illustration H d a e b e f B c g g i szerokośc tread width stopnia [mm] B [mm] a b c d e f g i H Other dimensions on request. 20 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

21 Spiral stairs with RR type treads Spiral stairs with RR type treads Staco Gratings offer spiral stairs with treads made up of RR type grating. They are available in various diameters from 1600 mm up to 3000 mm in either a clockwise or anti-clockwise turn in self colour or galvanized steel. Spiral stairs are a perfect solution when you require a staircase in a confined or limited space where a conventional staircase is not possible. Applying themselves to both indoor and outdoor applications,, the simplicity of their structure ensures fast and cost effective on site installation. All the elements like tube, treads or railing are tailor made. To order you must have the following data: - height (difference between levels) - outer diameter - type of railing as below - mesh size of grating for treads - location of entries and exits on the levels Railings with handrail of tube Ø 33,7 and Ø 42 Spiral tread with rr type grating średnica outer diameter zewnętrzna D [mm] N ilość schodów of treads for one rotation na jeden obrót (szt) , , 16, , 16, ,18, 20, 22, ,18, 20, 22, ,18, 20, , 20, 22, , 20, 22, 24, , 24, 26, 28 with grating panels with horizontal bars/tubes with rod panels with vertical bars/tubes Grating Technology for customised products, call staco Gratings T +44 (0)

22 Plastic gratings TYPE GRP Fibreglass-reinforced plastic gratings are made up of fibreglass covered in high-grade plastic. This mix is injected into a solid mould, heated and then left to cure. Adding colour pigment to the mix gives the material a consistent colour. After curing, the grating mats can be cut to any required size. 22 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

23 gratings type GRP Plastic gratings type grp Properties Chemical composition: Fibreglass-reinforced plastic gratings are available in a number of resin types (orthophtalic, isophtalic or vinyl ester). Each type of resin has specific properties. Our sales staff would be happy to advise you on correct application. (depending on chemical composition) - corrosion resistant - high chemical resistance - electrically and thermally insulating - flameproof Custom jobs: Our sales staff would be happy to advise you if you require specific sizes, non-standard versions, colours or areas of application. Colours: Fibreglass-reinforced plastic gratings are coloured and are uv-resistent. Plastic gratings are available in grey, yellow, green and red. Any GRP colour is available for bulk orders. Standard sizes: height [mm] panel dimensions [mm] mesh size [mm] weight per m x x 38 5,6 kg x x 40 12,6 kg x x 40 12,6 kg x x 40 12,6 kg x x 38 15,2 kg The table below illustrates the possible variations in mesh size. Type GRP Mesh size = Option Bearing bars c.t.c Cross bars c.t.c x x kg x x kg x x kg x x kg x x 13 17,7 kg x x 40 18,6 kg x x 40 18,6 kg x x 38 21,2 kg x x kg covering plate x ,4 kg GRP Plastic grating standard yellow GRP Plastic grating standard green GRP Plastic grating standard grey GRP Plastic grating grey safety mesh GRP Anti-slip Plastic grating sand finish grey GRP Plastic grating grey diamond plate Grating Technology for customised products, call staco Gratings T +44 (0)

24 Load table gratings type GRP Plastic gratings type grp Production options load table span on surface 300 x 300 mm linear load uniformly distributed load (L) maximum load kn maximum load kn maximum load [kn/m 2 ] [mm] deflection (fig. A) deflection (fig. B) deflection (fig. C) fig. A fig. B fig. C GRP 25 L/100 L/200 L/100 L/200 L/100 L/200 H = 25,0 mm ,6 5,8 4,6 2,1 94,5 44,5 C = 6,7 mm 500 5,1 2,6 1,8 0,9 19,6 9,6 B = 5,0 mm 800 2,3 1,1 0,7 0,4 4,7 2,3 M = 38/38 mm ,7 0,8 0,4 0,2 2,3 1, ,3 0,6 0,3 0,2 1,4 0,7 GRP 30 H = 30,0 mm ,9 9,8 9,1 4,3 214,9 73,3 C = 6,7 mm 500 9,3 4,4 6,2 3,1 39,7 19,3 B = 5,0 mm 800 4,1 2,1 1,4 0,7 11,1 5,3 M = 38/38 mm ,9 1,4 0,9 0,5 5,0 2, ,3 1,2 0,7 0,3 3,3 1, ,5 0,3 1,8 0, ,4 0,2 1,7 0,8 GRP 38 H = 38,0 mm ,3 7,7 6,5 3,2 70,0 32,7 C = 6,7 mm 800 8,4 4,0 2,7 1,4 21,7 9,4 B = 5,0 mm ,1 3,0 1,9 1,0 9,0 4,5 M = 38/38 mm ,8 2,4 1,4 0,7 5,9 2, ,9 0,4 3,4 1, ,8 0,4 2,7 1,4 GRP 50 H = 50,0 mm ,9 15,7 12,7 6,2 148,0 67,9 C = 8,0 mm ,0 10,1 6,8 3,4 58,6 38,8 B = 5,0 mm ,0 8,1 4,8 2,4 37,5 19,4 M = 50/50 mm ,5 6,2 3,6 1,8 16,6 8, ,8 5,0 2,1 1,4 12,2 5, ,0 1,0 6,6 3, ,8 0,9 5,3 2,7 24 Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

25 Grating Technology for customised products, call staco Gratings T +44 (0)

26 Hot-dip galvanizing Hot-dip galvanizing Hot-dip galvanizing in accordance with EN ISO 1461: For permanent protection of its products, the steel gratings, stair treads and fasteners are hot-dip galvanized in Staco Grating s own workshops or associated group companies. For more information on hot-dip galvanizing, go to Finishing in accordance with EN ISO 1461: Any irregularities are manually removed and the material is free from projections such as: -0 blisters -0 sharp points -0 rough spots Process: Norm en ISO 1461 Degreasing degreasing bath Etching hydrochloric acid solution Dipping flux solution Drying/preheating approx 100 Celsius Galvanising 445 Celsius Colour differences: After hot-dip galvanizing, the colour of the zinc coating may change. This is usually caused by zinc iron alloy elements coming through. Thickness of layer in accordance with EN ISO 1461: Material thickness in mm Zinc coating thickness in µm < 1,5 45 > 1, > > Grating Technology Floor GRATINGS and STAIR TREADS T +44 (0)

27 Electrostatic powder coating Electrostatic powder coating according to VISEM quality requirements In order to ensure Staco Gratings products have an attractive appearance, and are therefore more likely to be used in architectural applications, we equip Staco Gratings galvanized, stainless steel and aluminium products with any required RAL colour. Either in house or with carefully selected powder coating units. Staco Gratings supplies in compliance with quality require ments for the industrial application of organic coatings on hot-dip galvanized steel. For more information on electro static powder coating, go to Process Coating applied in accordance with EN ISO 5254 warrants: - no irregularities protruding through the coating - steel splinters removed from visible surfaces - no obvious irregularities visible from a distance of 3 metres, unless inherent to the hot-dip galvanizing process Chemical pre-treatment Drying where necessary Application of coating Enamelling Advice: In order to ensure the best result, Staco Gratings always advises applying a double-layered coating to the products. Maintenance: It is important that the coating is cleaned regularly to prevent chlorides from adhering to the coating and shortening its working life. electrostatic powder coating Grating Technology for customised products, call staco Gratings T +44 (0)

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