Steel grating reference
30 mm Bearing-Bar Pitch Load Table
Reference values for plain press-welded grating across clear spans from 200 to 3000 mm.
Reading the table
Match the designation and clear span.
Each row identifies the bearing-bar section, cross-bar pitch and theoretical mass per square metre. U denotes uniformly distributed load in kN/m²; D denotes deflection in mm. The adjacent U and D rows show different cross-bar pitches and must not be treated as a certified load/deflection pair.
Engineering use
These figures are for preliminary comparison. Confirm the calculation or test basis, loading, steel grade, support, bearing direction, deflection limit and applicable standard before relying on a value.
| Type | Bar height mm | Bar thickness mm | Theory mass kg/m² | Value | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 | 2600 | 2800 | 3000 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| G655/30/50 | 65 | 5 | 103.4 | U | 3990 | 997 | 443 | 249 | 159 | 110 | 81 | 62 | 49 | 39 | 32 | 27 | 23 | 20 | 17 |
| G655/30/100 | 65 | 5 | 100.4 | D | 0.11 | 0.42 | 0.95 | 1.7 | 2.65 | 3.81 | 5.22 | 6.84 | 8.7 | 10.61 | 12.82 | 15.4 | 18.18 | 21.4 | 24.18 |
| G605/30/50 | 60 | 5 | 95.9 | U | 3400 | 850 | 377 | 212 | 136 | 94 | 69 | 53 | 41 | 34 | 28 | 23 | 20 | 17 | — |
| G605/30/100 | 60 | 5 | 92.9 | D | 0.11 | 0.46 | 1.03 | 1.84 | 2.89 | 4.15 | 5.66 | 7.45 | 9.28 | 11.78 | 14.28 | 16.73 | 20.16 | 23.23 | — |
| G555/30/50 | 55 | 5 | 88.4 | U | 2856 | 714 | 317 | 178 | 114 | 79 | 58 | 44 | 35 | 28 | 23 | 19 | 16 | — | — |
| G555/30/100 | 55 | 5 | 85.4 | D | 0.13 | 0.5 | 1.13 | 2 | 3.14 | 4.53 | 6.19 | 8.04 | 10.3 | 12.63 | 15.29 | 18.03 | 21.08 | — | — |
| G505/30/50 | 50 | 5 | 80.9 | U | 2361 | 590 | 262 | 147 | 94 | 65 | 48 | 36 | 29 | 23 | 19 | 16 | — | — | — |
| G505/30/100 | 50 | 5 | 77.9 | D | 0.14 | 0.55 | 1.24 | 2.2 | 3.45 | 4.97 | 6.82 | 8.78 | 11.39 | 13.86 | 16.88 | 20.28 | — | — | — |
| G503/30/50 | 50 | 3 | 52.6 | U | 1416 | 354 | 157 | 88 | 56 | 39 | 28 | 22 | 17 | 14 | 11 | — | — | — | — |
| G503/30/100 | 50 | 3 | 49.6 | D | 0.14 | 0.55 | 1.24 | 2.2 | 3.43 | 4.97 | 6.65 | 8.95 | 11.16 | 14.09 | 16.37 | — | — | — | — |
| G455/30/50 | 45 | 5 | 73.4 | U | 1912 | 478 | 212 | 119 | 76 | 53 | 39 | 29 | 23 | 19 | 15 | — | — | — | — |
| G455/30/100 | 45 | 5 | 70.4 | D | 0.15 | 0.61 | 1.38 | 2.45 | 3.83 | 5.56 | 7.62 | 9.73 | 12.44 | 15.76 | 18.39 | — | — | — | — |
| G405/30/50 | 40 | 5 | 65.9 | U | 1511 | 377 | 167 | 94 | 60 | 41 | 30 | 23 | 18 | 15 | — | — | — | — | — |
| G405/30/100 | 40 | 5 | 62.9 | D | 0.17 | 0.69 | 1.54 | 2.76 | 4.31 | 6.14 | 8.37 | 11.02 | 13.92 | 17.8 | — | — | — | — | — |
| G403/30/50 | 40 | 3 | 43.3 | U | 906 | 226 | 100 | 56 | 36 | 25 | 18 | 14 | 11 | — | — | — | — | — | — |
| G403/30/100 | 40 | 3 | 40.3 | D | 0.17 | 0.69 | 1.54 | 2.74 | 4.32 | 6.25 | 8.39 | 11.2 | 14.21 | — | — | — | — | — | — |
| G355/30/50 | 35 | 5 | 58.4 | U | 1156 | 289 | 128 | 72 | 46 | 32 | 23 | 18 | 14 | — | — | — | — | — | — |
| G355/30/100 | 35 | 5 | 55.4 | D | 0.2 | 0.79 | 1.77 | 3.16 | 4.94 | 7.17 | 9.61 | 12.92 | 16.24 | — | — | — | — | — | — |
| G353/30/50 | 35 | 3 | 38.6 | U | 694 | 173 | 77 | 43 | 27 | 19 | 14 | 10 | — | — | — | — | — | — | — |
| G353/30/100 | 35 | 3 | 35.6 | D | 0.2 | 0.79 | 1.77 | 3.14 | 4.84 | 7.11 | 9.77 | 12.03 | — | — | — | — | — | — | — |
| G325/30/50 | 32 | 5 | 53.9 | U | 967 | 241 | 107 | 60 | 38 | 26 | 19 | 15 | 11 | — | — | — | — | — | — |
| G325/30/100 | 32 | 5 | 50.9 | D | 0.22 | 0.86 | 1.94 | 3.44 | 5.35 | 7.64 | 10.42 | 14.13 | 16.81 | — | — | — | — | — | — |
| G323/30/50 | 32 | 3 | 35.8 | U | 580 | 145 | 64 | 36 | 23 | 16 | 11 | 9 | — | — | — | — | — | — | — |
| G323/30/100 | 32 | 3 | 32.8 | D | 0.21 | 0.86 | 1.93 | 3.45 | 5.41 | 7.85 | 10.09 | 14.19 | — | — | — | — | — | — | — |
| G255/30/50 | 25 | 5 | 43.4 | U | 590 | 147 | 65 | 36 | 23 | 16 | 12 | — | — | — | — | — | — | — | — |
| G255/30/100 | 25 | 5 | 40.4 | D | 0.28 | 1.1 | 2.47 | 4.35 | 6.82 | 9.92 | 13.9 | — | — | — | — | — | — | — | — |
| G253/30/50 | 25 | 3 | 29.3 | U | 354 | 88 | 39 | 22 | 14 | 9 | — | — | — | — | — | — | — | — | — |
| G253/30/100 | 25 | 3 | 26.3 | D | 0.28 | 1.1 | 2.47 | 4.43 | 6.94 | 9.35 | — | — | — | — | — | — | — | — | — |
| G205/30/50 | 20 | 5 | 36.0 | U | 377 | 94 | 41 | 23 | 15 | 10 | — | — | — | — | — | — | — | — | — |
| G205/30/100 | 20 | 5 | 33.0 | D | 0.34 | 1.37 | 3.05 | 5.44 | 8.73 | 12.21 | — | — | — | — | — | — | — | — | — |
| G203/30/50 | 20 | 3 | 24.6 | U | 226 | 56 | 25 | 14 | 9 | — | — | — | — | — | — | — | — | — | — |
| G203/30/100 | 20 | 3 | 21.6 | D | 0.34 | 1.37 | 3.1 | 5.53 | 8.76 | — | — | — | — | — | — | — | — | — | — |