Press Welded Grating is the work horse of our industry and the go-to choice for everyday industrial applications, where their durability and strength are desired.
Press welded gratings are automatically produced on a a machine that simultaneously presses and welds the cross rod in position at the required mesh spacing.
Our production line can produce standard grating panels in widths up to 1250mm, and in lengths up to 7mtrs, for retail markets.
NOTES: Below table is made considering working stress of 165 N/mm2 which allows for a safety factor of 1.6
Deflection should not more than span / 200 times or 10mm, whichever is lesser
For pedestrian traffic there are three loading categories, which are Light Duty – (UDL – 3 KN/m2), Medium Duty- (UDL- 5 KN/m2), and Heavy Duty- (UDL – 7 5 KN/m2)
Add 2 8 Kg/m2 to theoretical weight Kg/m2 for Cross bars @ 50 mm centres
When calculating UDL and deflection for serrated gratings, allowance should be made for the material removed from the bearing bar to form the serration profile Typically this is 90% of the UDL and 105% of the deflection. These figures vary depending on the type of serration and should be confirmed during the design process.
Bearing Bar Size (mm) | SPAN IN MM | Max Clear Span for Pedestrian Loadings | Theoritical Weight Kg/m² for 100mm pitch | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
300 | 450 | 600 | 750 | 900 | 1050 | 1200 | 1350 | 1500 | 1650 | 1800 | 1950 | 2100 | U-KN/m2 | 3 | 5 | 7.5 | |||
20 x 3 | UDL-KN/m² | 120.60 | 53.36 | 30.05 | 15.44 | 8.93 | 5.62 | 3.76 | 2.64 | 1.93 | 1.44 | 1.11 | 0.87 | 0.67 | Span – mm | 1295 | 1092 | 954 | 22.14 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 6.47 | 5.46 | 4.77 | ||
20 x 5 | UDL-KN/m² | 201.00 | 88.90 | 50.08 | 25.73 | 14.89 | 9.38 | 6.28 | 4.41 | 3.21 | 2.41 | 1.86 | 1.46 | 1.11 | Span – mm | 1535 | 1294 | 1131 | 35.01 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 7.67 | 6.47 | 5.65 | ||
25 x 3 | UDL-KN/m² | 188.50 | 83.70 | 47.00 | 30.10 | 17.45 | 10.99 | 7.36 | 5.17 | 3.77 | 2.83 | 2.18 | 1.71 | 1.30 | Span – mm | 1618 | 1365 | 1192 | 26.96 |
D – mm | 0.60 | 1.35 | 2.39 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 8.09 | 6.82 | 5.96 | ||
25 x 5 | UDL-KN/m² | 314.00 | 139.60 | 78.20 | 50.12 | 29.08 | 18.31 | 12.27 | 8.61 | 6.28 | 4.72 | 3.63 | 2.86 | 2.18 | Span – mm | 1919 | 1618 | 1414 | 43.06 |
D – mm | 0.60 | 1.35 | 2.39 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 9.60 | 8.09 | 7.07 | ||
30 x 3 | UDL-KN/m² | 271.50 | 120.10 | 67.50 | 43.35 | 30.08 | 18.99 | 12.72 | 8.93 | 6.51 | 4.89 | 3.77 | 2.96 | 2.26 | Span – mm | 1942 | 1638 | 1431 | 31.79 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 9.71 | 8.19 | 7.15 | ||
30 x 5 | UDL-KN/m² | 452.00 | 200.10 | 112.50 | 72.30 | 50.15 | 31.65 | 21.20 | 14.89 | 10.85 | 8.15 | 6.28 | 4.94 | 3.76 | Span – mm | 2223 | 1942 | 1697 | 51.10 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 9.71 | 8.48 | ||
35 x 3 | UDL-KN/m² | 371.00 | 163.50 | 92.10 | 58.90 | 40.97 | 30.09 | 20.20 | 14.19 | 10.34 | 7.77 | 5.99 | 4.70 | 3.58 | Span – mm | 2196 | 1911 | 1669 | 36.62 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 9.55 | 8.34 | ||
35 x 5 | UDL-KN/m² | 617.00 | 272.50 | 153.50 | 98.20 | 68.28 | 50.16 | 33.66 | 23.64 | 17.23 | 12.95 | 9.97 | 7.85 | 5.98 | Span – mm | 2495 | 2196 | 1980 | 59.15 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 9.90 | ||
40 x 3 | UDL-KN/m² | 476.00 | 213.50 | 120.60 | 77.06 | 53.52 | 39.26 | 3.05 | 21.18 | 15.44 | 11.60 | 8.93 | 7.02 | 5.35 | Span – mm | 2427 | 2136 | 1908 | 41.45 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 9.54 | ||
40 x 5 | UDL-KN/m² | 793.00 | 355.60 | 201.00 | 128.47 | 89.20 | 65.44 | 50.09 | 35.29 | 25.73 | 19.33 | 14.89 | 11.71 | 8.93 | Span – mm | 2758 | 2427 | 2194 | 67.20 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
50 x 5 | UDL-KN/m² | 1255.00 | 554.00 | 314.00 | 200.50 | 139.10 | 102.15 | 78.36 | 61.89 | 50.25 | 37.75 | 29.08 | 22.87 | 17.44 | Span – mm | 3260 | 2870 | 2593 | 83.29 |
D – mm | 0.30 | 0.67 | 1.20 | 1.87 | 2.69 | 3.66 | 4.79 | 6.06 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
60 x 5 | UDL-KN/m² | 1810.00 | 800.00 | 452.50 | 289.00 | 200.10 | 147.10 | 112.80 | 89.12 | 72.13 | 65.25 | 50.25 | 39.53 | 30.14 | Span – mm | 3738 | 3290 | 2973 | 99.38 |
D – mm | 0.25 | 0.56 | 1.00 | 1.56 | 2.24 | 3.05 | 3.99 | 5.05 | 6.23 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
70 x 5 | UDL-KN/m² | 2415.00 | 1090.00 | 610.50 | 394.20 | 272.34 | 200.60 | 153.50 | 121.35 | 98.19 | 81.12 | 79.80 | 62.76 | 47.86 | Span – mm | 4197 | 3693 | 3337 | 115.47 |
D – mm | 0.21 | 0.48 | 0.85 | 1.34 | 1.92 | 2.62 | 3.42 | 4.33 | 5.34 | 6.46 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 |
NOTES: Below table is made considering working stress of 165 N/mm2′ which allows for a safety factor of 1.6
Deflection should not more than span / 200 times or 10mm, whichever is lesser
For pedestrian traffic there are three loading categories. which are Light Duty – (UDL – 3 KN/m2), Medium Duty – (UDL – 5 KN/m2) and Heavy Duty – (UDL – 7 5 KN/m2)
Add 2 8 Kg/m2 to theoretical weight Kg/m2 for Cross bars @ 50 mm centres
When calculating UDL and deflection for serrated gratings, allowance should be made for the material removed from the bearing bar to form the serration profile Typically this is 90% of the UDL and 105% of the deflection. These figures vary depending on the type of serration and should be confirmed during the design process.
Bearing Bar Size (mm) | SPAN IN MM | Max Clear Span for Pedestrian Loadings | Theoritical Weight Kg/m² for 100mm pitch | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
300 | 450 | 600 | 750 | 900 | 1050 | 1200 | 1350 | 1500 | 1650 | 1800 | 1950 | 2100 | U-KN/m2 | 3 | 5 | 7.5 | |||
20 x 3 | UDL-KN/m² | 99.73 | 44.33 | 24.93 | 12.80 | 7.41 | 4.67 | 3.13 | 2.20 | 1.60 | 1.20 | 0.93 | 0.73 | 0.56 | Span-mm | 1217 | 1026 | 896 | 18.84 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 6.09 | 5.13 | 4.48 | ||
20 x 5 | UDL-KN/m² | 166.22 | 73.88 | 41.56 | 21.34 | 12.35 | 7.78 | 5.21 | 3.66 | 2.67 | 2.00 | 1.54 | 1.21 | 0.93 | Span – mm | 1442 | 1217 | 1063 | 29.52 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 7.21 | 6.09 | 5.32 | ||
25 x 3 | UDL-KN/m² | 155.83 | 69.26 | 38.96 | 24.93 | 14.47 | 9.11 | 6.10 | 4.29 | 3.13 | 2.35 | 1.81 | 1.42 | 1.08 | Span – mm | 1521 | 1283 | 1120 | 22.84 |
D – mm | 0.60 | 1.35 | 2.39 | 3.74 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 7.61 | 6.42 | 5.60 | ||
25 x 5 | UDL-KN/m² | 259.72 | 115.43 | 64.93 | 41.56 | 24.12 | 15.19 | 10.17 | 7.15 | 5.21 | 3.91 | 3.01 | 2.37 | 1.81 | Span – mm | 1803 | 1521 | 1328 | 36.19 |
D – mm | 0.60 | 1.35 | 2.39 | 3.74 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 9.02 | 7.61 | 6.64 | ||
30 x 3 | UDL-KN/m² | 224.40 | 99.73 | 56.10 | 35.90 | 24.93 | 15.75 | 10.55 | 7.41 | 5.40 | 4.06 | 3.13 | 2.46 | 1.87 | Span – mm | 1825 | 1539 | 1345 | 26.85 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 9.13 | 7.70 | 6.73 | ||
30 x 5 | UDL-KN/m² | 374.00 | 166.22 | 93.50 | 59.84 | 41.56 | 26.24 | 17.58 | 12.35 | 9.00 | 6.76 | 5.21 | 4.10 | 3.12 | Span – mm | 2121 | 1825 | 1594 | 42.86 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 9.13 | 7.97 | ||
35 x 3 | UDL-KN/m² | 305.43 | 135.75 | 76.36 | 48.87 | 33.94 | 24.93 | 16.75 | 11.76 | 8.58 | 6.44 | 4.96 | 3.90 | 2.98 | Span – mm | 2096 | 1796 | 1569 | 30.85 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 8.98 | 7.85 | ||
35 x 5 | UDL-KN/m² | 509.06 | 226.25 | 127.26 | 81.45 | 56.56 | 41.56 | 27.92 | 19.61 | 14.29 | 10.74 | 8.27 | 6.51 | 4.96 | Span – mm | 2381 | 2096 | 1860 | 49.53 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 9.30 | ||
40 x 3 | UDL-KN/m² | 398.93 | 177.30 | 99.73 | 63.83 | 44.33 | 32.57 | 24.93 | 17.56 | 12.80 | 9.62 | 7.41 | 5.83 | 4.44 | Span – mm | 2317 | 2039 | 1793 | 34.85 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 8.97 | ||
40 x 5 | UDL-KN/m² | 664.89 | 295.51 | 166.22 | 106.38 | 73.88 | 54.28 | 41.56 | 29.27 | 21.34 | 16.03 | 12.35 | 9.71 | 7.41 | Span – mm | 2632 | 2317 | 2093 | 56.21 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
50 x 5 | UDL-KN/m² | 1038.89 | 461.73 | 259.72 | 166.22 | 115.43 | 84.81 | 64.93 | 51.30 | 41.67 | 31.31 | 24.12 | 18.97 | 14.46 | Span – mm | 3112 | 2739 | 2475 | 69.55 |
D – mm | 0.30 | 0.67 | 1.20 | 1.87 | 2.69 | 3.66 | 4.79 | 6.06 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
60 x 5 | UDL-KN/m² | 1496.00 | 664.89 | 374.00 | 239.36 | 166.22 | 122.12 | 93.50 | 73.88 | 59.84 | 54.10 | 41.67 | 32.78 | 24.99 | Span – mm | 3568 | 3140 | 2837 | 82.90 |
D – mm | 0.25 | 0.56 | 1.00 | 1.56 | 2.24 | 3.05 | 3.99 | 5.05 | 6.23 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
70 x 5 | UDL-KN/m² | 2036.22 | 904.99 | 509.06 | 325.80 | 226.25 | 166.22 | 127.26 | 100.55 | 81.45 | 67.31 | 66.18 | 52.05 | 39.69 | Span – mm | 4005 | 3525 | 3185 | |
D – mm | 0.21 | 0.48 | 0.85 | 1.34 | 1.92 | 2.62 | 3.42 | 4.33 | 5.34 | 6.46 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 |
NOTES: Below table is made considering working stress of 165 N/mm2′ which allows for a safety factor of 1.6
Deflection should not more than span/ 200 times or 10mm, whichever is lesser
For pedestrian traffic there are three loading categories, which are Light Duty – (UDL – 3 KN/m2), Medium Duty – (UDL – 5 KN/m2) and Heavy Duty – (UDL – 7 5 KN/m2) Add 2 8 Kgim’ to theoretical weight Kgim’ for Cross bars @ 50 mm centres
When calculating UDL and deflection for serrated gratings, allowance should be made for the material removed from the bearing bar to form the serration profile Typically this is 90% of the UDL and 105% of the deflection. These figures vary depending on the type of serration and should be confirmed during the design process.
Bearing Bar Size (mm) | SPAN IN MM | Max Clear Span for Pedestrian Loadings | Theoritical Weight Kg/m² for 100mm pitch | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
300 | 450 | 600 | 750 | 900 | 1050 | 1200 | 1350 | 1500 | 1650 | 1800 | 1950 | 2100 | U-KN/m2 | 3 | 5 | 7.5 | |||
20 x 3 | UDL-KN/m² | 88.30 | 39.05 | 21.99 | 11.29 | 6.53 | 4.12 | 2.76 | 1.93 | 1.41 | 1.06 | 0.81 | 0.64 | 0.49 | Span-mm | 1166 | 984 | 860 | 16.96 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 5.83 | 4.92 | 4.29 | ||
20 x 5 | UDL-KN/m² | 147.00 | 65.10 | 36.65 | 18.83 | 10.90 | 6.86 | 4.60 | 3.23 | 2.35 | 1.76 | 1.36 | 1.07 | 0.81 | Span-mm | 1383 | 1167 | 1019 | 26.38 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 6.91 | 5.83 | 5.09 | ||
25 x 3 | UDL-KN/m² | 138.00 | 61.30 | 34.33 | 22.00 | 12.76 | 8.04 | 5.39 | 3.78 | 2.76 | 2.07 | 1.59 | 1.25 | 0.95 | Span-mm | 1459 | 1230 | 1074 | 20.49 |
D – mm | 0.60 | 1.35 | 2.39 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 7.29 | 6.15 | 5.37 | ||
25 x 5 | UDL-KN/m² | 230.00 | 102.15 | 57.21 | 36.67 | 21.28 | 13.40 | 8.97 | 6.30 | 4.59 | 3.45 | 2.66 | 2.09 | 1.59 | Span-mm | 1729 | 1459 | 1274 | 32.26 |
D – mm | 0.60 | 1.35 | 2.39 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 8.64 | 7.29 | 6.37 | ||
30 x 3 | UDL-KN/m² | 198.50 | 87.85 | 49.40 | 31.72 | 22.02 | 13.89 | 9.31 | 6.53 | 4.77 | 3.58 | 2.76 | 2.16 | 1.65 | Span-mm | 1750 | 1476 | 1290 | 24.02 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 8.75 | 7.38 | 6.44 | ||
30 x 5 | UDL-KN/m² | 331.00 | 146.40 | 82.40 | 52.86 | 36.77 | 23.15 | 15.51 | 10.89 | 7.94 | 5.96 | 4.60 | 3.61 | 2.75 | Span-mm | 2056 | 1750 | 1529 | 38.15 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 8.75 | 7.64 | ||
35 x 3 | UDL-KN/m² | 271.00 | 119.60 | 67.40 | 43.10 | 29.97 | 22.02 | 14.78 | 10.38 | 7.57 | 5.68 | 4.38 | 3.44 | 2.62 | Span-mm | 2031 | 1722 | 1504 | 27.55 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 8.61 | 7.52 | ||
35 x 5 | UDL-KN/m² | 452.00 | 199.30 | 112.30 | 71.85 | 49.96 | 36.70 | 24.64 | 17.30 | 12.61 | 9.47 | 7.30 | 5.74 | 4.37 | Span-mm | 2308 | 2031 | 1783 | 44.04 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 8.91 | ||
40 x 3 | UDL-KN/m² | 348.00 | 156.20 | 88.25 | 56.38 | 39.16 | 28.73 | 21.99 | 15.49 | 11.29 | 8.48 | 6.54 | 5.14 | 3.92 | Span-mm | 2245 | 1968 | 1719 | 31.09 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 9.84 | 8.59 | ||
40 x 5 | UDL-KN/m² | 580.00 | 260.20 | 147.10 | 94.00 | 65.28 | 47.88 | 36.65 | 25.83 | 18.83 | 14.14 | 10.89 | 8.57 | 6.53 | Span-mm | 2551 | 2245 | 2029 | 49.93 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
50 x 5 | UDL-KN/m² | 920.00 | 405.50 | 229.90 | 146.70 | 101.78 | 74.74 | 57.34 | 45.28 | 36.77 | 27.62 | 21.28 | 16.73 | 12.76 | Span-mm | 3015 | 2654 | 2398 | 61.70 |
D – mm | 0.30 | 0.67 | 1.20 | 1.87 | 2.69 | 3.66 | 4.79 | 6.06 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
60 x 5 | UDL-KN/m² | 1325.00 | 586.00 | 331.00 | 211.50 | 146.40 | 107.61 | 82.50 | 65.21 | 52.78 | 47.74 | 36.77 | 28.92 | 22.05 | Span-mm | 3457 | 3043 | 2750 | 73.48 |
D – mm | 0.25 | 0.56 | 1.00 | 1.56 | 2.24 | 3.05 | 3.99 | 5.05 | 6.23 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
70 x 5 | UDL-KN/m² | 1762.00 | 798.00 | 446.50 | 288.50 | 199.30 | 146.80 | 112.34 | 88.79 | 71.84 | 59.36 | 58.39 | 45.92 | 35.00 | Span-mm | 3881 | 3416 | 3087 | 85.25 |
D – mm | 0.21 | 0.48 | 0.85 | 1.34 | 1.92 | 2.62 | 3.42 | 4.33 | 5.34 | 6.46 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 |
NOTES: Below table is made considering working stress of 165 N/mm2 which allows for a safety factor of 1.6
Deflection should not more than span / 200 times or 10mm, whichever is lesser
For pedestrian traffic there are three loading categories, which are Light Duty – (UDL – 3 KN/m2 ), Medium Duty – (UDL – 5 KN/m2) and Heavy Duty – (UDL – 7 5 KN/m2) Add 2 8 Kg/m2 to theoretical weight Kg/m2 for Cross bars@ 50 mm centres
When calculating UDL and deflection for serrated gratings, allowance should be made for the material removed from the bearing bar to form the serration profile Typically this is 90% of the UDL and 105% of the deflection These figures vary depending on the type of serration and should be confirmed during the design process.
Bearing Bar Size (mm) | SPAN IN MM | Max Clear Span for Pedestrian Loadings | Theoritical Weight Kg/m² for 100mm pitch | ||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
300 | 450 | 600 | 750 | 900 | 1050 | 1200 | 1350 | 1500 | 1650 | 1800 | 1950 | 2100 | U-KN/m2 | 3 | 5 | 7.5 | |||
20 x 3 | UDL-KN/m² | 73.33 | 32.59 | 18.33 | 9.41 | 5.45 | 3.43 | 2.30 | 1.61 | 1.18 | 0.88 | 0.68 | 0.54 | 0.41 | Span-mm | 1098 | 926 | 809 | 14.60 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 5.49 | 4.63 | 4.05 | ||
20 x 5 | UDL-KN/m² | 122.22 | 54.32 | 30.56 | 15.69 | 9.08 | 5.72 | 3.83 | 2.69 | 1.96 | 1.47 | 1.13 | 0.89 | 0.68 | Span-mm | 1302 | 1098 | 959 | 22.45 |
D – mm | 0.75 | 1.68 | 2.99 | 3.75 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 6.51 | 5.49 | 4.80 | ||
25 x 3 | UDL-KN/m² | 114.58 | 50.93 | 28.65 | 18.33 | 10.64 | 6.70 | 4.49 | 3.15 | 2.30 | 1.73 | 1.33 | 1.05 | 0.80 | Span-mm | 1373 | 1158 | 1011 | 17.54 |
D – mm | 0.60 | 1.35 | 2.39 | 3.74 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 6.87 | 5.79 | 5.06 | ||
25 x 5 | UDL-KN/m² | 190.97 | 84.88 | 47.74 | 30.56 | 17.73 | 11.17 | 7.48 | 5.25 | 3.83 | 2.88 | 2.22 | 1.74 | 1.33 | Span-mm | 1627 | 1373 | 1199 | 27.36 |
D – mm | 0.60 | 1.35 | 2.39 | 3.74 | 4.50 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 8.14 | 6.87 | 6.00 | ||
30 x 3 | UDL-KN/m² | 165.00 | 73.33 | 41.25 | 26.40 | 18.33 | 11.58 | 7.76 | 5.45 | 3.97 | 2.98 | 2.30 | 1.81 | 1.38 | Span-mm | 1647 | 1389 | 1214 | 20.49 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 8.24 | 6.95 | 6.07 | ||
30 x 5 | UDL-KN/m² | 275.00 | 122.22 | 68.75 | 44.00 | 30.56 | 19.30 | 12.93 | 9.08 | 6.62 | 4.97 | 3.83 | 3.01 | 2.30 | Span-mm | 1953 | 1647 | 1439 | 32.26 |
D – mm | 0.50 | 1.12 | 1.99 | 3.12 | 4.49 | 5.25 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 9.77 | 8.24 | 7.20 | ||
35 x 3 | UDL-KN/m² | 224.58 | 99.81 | 56.15 | 35.93 | 24.95 | 18.33 | 12.32 | 8.65 | 6.31 | 4.74 | 3.65 | 2.87 | 2.19 | Span-mm | 1922 | 1621 | 1416 | 23.43 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 9.61 | 8.11 | 7.08 | ||
35 x 5 | UDL-KN/m² | 374.31 | 166.36 | 93.58 | 59.89 | 41.59 | 30.56 | 20.53 | 14.42 | 10.51 | 7.90 | 6.08 | 4.78 | 3.65 | Span-mm | 2205 | 1922 | 1679 | 37.17 |
D – mm | 0.43 | 0.96 | 1.71 | 2.67 | 3.85 | 5.24 | 6.00 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 9.61 | 8.40 | ||
40 x 3 | UDL-KN/m² | 293.33 | 130.37 | 73.33 | 46.93 | 32.59 | 23.95 | 18.33 | 12.91 | 9.41 | 7.07 | 5.45 | 4.28 | 3.27 | Span-mm | 2145 | 1852 | 1618 | 26.38 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 9.26 | 8.09 | ||
40 x 5 | UDL-KN/m² | 488.89 | 217.28 | 122.22 | 78.22 | 54.32 | 39.91 | 30.56 | 21.52 | 15.69 | 11.79 | 9.08 | 7.14 | 5.45 | Span-mm | 2438 | 2145 | 1918 | 42.08 |
D – mm | 0.37 | 0.84 | 1.50 | 2.34 | 3.37 | 4.58 | 5.98 | 6.75 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 9.59 | ||
50 x 5 | UDL-KN/m² | 763.89 | 339.51 | 190.97 | 122.22 | 84.88 | 62.36 | 47.74 | 37.72 | 30.64 | 23.02 | 17.73 | 13.95 | 10.64 | Span-mm | 2882 | 2536 | 2292 | 51.89 |
D – mm | 0.30 | 0.67 | 1.20 | 1.87 | 2.69 | 3.66 | 4.79 | 6.06 | 7.50 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
60 x 5 | UDL-KN/m² | 1100.00 | 488.89 | 275.00 | 176.00 | 122.22 | 89.80 | 68.75 | 54.32 | 44.00 | 39.78 | 30.64 | 24.10 | 18.38 | Span-mm | 3304 | 2908 | 2627 | 61.70 |
D – mm | 0.25 | 0.56 | 1.00 | 1.56 | 2.24 | 3.05 | 3.99 | 5.05 | 6.23 | 8.25 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 | ||
70 x 5 | UDL-KN/m² | 1497.22 | 665.43 | 374.31 | 239.56 | 166.36 | 122.22 | 93.58 | 73.94 | 59.89 | 49.49 | 48.66 | 38.27 | 29.18 | Span-mm | 3709 | 3264 | 2949 | 71.51 |
D – mm | 0.21 | 0.48 | 0.85 | 1.34 | 1.92 | 2.62 | 3.42 | 4.33 | 5.34 | 6.46 | 9.00 | 9.75 | 10.00 | D – mm | 10.00 | 10.00 | 10.00 |
Durable and Customizable for Safe Access Our Stair Treads offer robust solutions for secure, slip-resistant access in any setting. Available in both Mild Steel and Stainless Steel, these treads are…
Read MoreStaircases by Oasis Metal Manufacturing: Safe, Functional, and Aesthetically Pleasing Solutions Staircases are essential elements that connect different levels within a building, providing safe and easy access between floors. At…
Read MoreO.Fence is leading manufacturer of welded wire mesh fence products. Providing wide range of perimeter security solution. Whether you’re looking for fencing solutions, shelving systems, or customized mesh designs, O.fence…
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Read MoreDesigned for safety and efficiency, our handrails are perfect for both industrial and commercial use. Made from high-quality materials, they offer long-lasting performance and resistance to environmental factors. Elevate your…
Read MoreWelcome to Oasis Metal Manufacturing – Your Premier Source for Fiber Reinforced Plastic (FRP) Solutions At Oasis Metal Manufacturing, we specialize in providing top-tier fiber reinforced plastic (FRP) products designed…
Read MoreFixing Clips: Essential for Secure Grating Installation Secure and easy to install, our fixing clips ensure stable and reliable fastening for gratings. Available in both Mild Steel and Stainless Steel,…
Read MoreStandard Gratings Adaptable and Strong for All-round Use Our gratings are engineered for a wide range of industrial and architectural applications. Available in various sizes and configurations, including load-bearing bars…
Read MoreSteel gratings are commonly used in industrial and commercial applications in the UAE. These include walkways, platforms, stair treads, and drainage systems for factories, power plants, and offshore oil platforms. Steel gratings offer high load-bearing capacity, durability, and resistance to high temperatures, making them ideal for demanding environments.
Steel gratings are designed for strength and versatility, while GI gratings are treated with a zinc coating to prevent corrosion. GI gratings are preferred for outdoor applications or projects where exposure to moisture is a concern, such as drainage systems and outdoor platforms, due to their resistance to rust.
Yes, we offer customizations for all our grating products. Oasis Metal Manufacturing can provide tailored solutions, including specific sizes, shapes, load capacities, and surface finishes to match the exact needs of your project. Our team works closely with clients to ensure their gratings meet both functional and aesthetic requirements.
At Oasis Metal Manufacturing, our grating clamps are made from durable, corrosion-resistant materials to ensure long-lasting performance. They are easy to install and designed to accommodate a variety of grating sizes and configurations. Whether you are installing steel gratings, our clamps provide the reliability and security needed for any application.
Yes, We offer after-sales services, including maintenance and repair, to ensure that your gratings continue to perform optimally for years to come. Whether you need technical assistance or regular maintenance, Oasis Metal Manufacturing is here to help.