Cable Ladder Load Tables

Safe load tables are provided in a unique format for easy comparison and cost optimisation. Load tables assume an even distribution of load across the width of the ladder fixed in a horizontal plane, and that the loading is similar on at least two or more continuous spans. For non-uniform loads or spans/loadings outside the scope of the tables, please contact Metsec for advice.

w 50mm deep 100mm deep 125mm deep 150mm deep
kg/m s d dp s d dp s d dp s d dp
25 3.931 19.7 19.7 6.000 19.6 30.0 6.000 8.7 30.0 6.000 5.4 30.0
50 3.120 15.6 15.6 5.487 27.4 27.4 6.000 17.3 30.0 6.000 10.9 30.0
75 2.725 13.6 13.6 4.564 19.7 22.8 6.000 26.0 30.0 6.000 16.3 30.0
100 2.396 10.9 12.0 3.952 14.8 19.8 5.321 21.4 26.6 6.000 21.8 30.0
125 2.143 8.7 10.7 3.535 11.8 17.7 4.760 17.1 23.8 5.476 18.9 27.4
150 1.956 7.2 9.8 3.227 9.8 16.1 4.345 14.3 21.7 4.999 15.7 25.0
175 1.811 6.2 9.1 2.988 8.4 14.9 4.023 12.2 20.1 4.628 13.5 23.1
200 1.694 5.4 8.5 2.795 7.4 14.0 3.763 10.7 18.8 4.329 11.8 21.6
225 1.597 4.8 8.0 2.635 6.6 13.2 3.548 9.5 17.7 4.081 10.5 20.4
250 1.515 4.3 7.6 2.500 5.9 12.5 3.366 8.6 16.8 3.872 9.4 19.4
275 1.445 3.9 7.2 2.383 5.4 11.9 3.209 7.8 16.0 3.692 8.6 18.5
300 1.383 3.6 6.9 2.282 4.9 11.4 3.072 7.1 15.4 3.535 7.9 17.7

‘s’– maximum spacing of supports in metres
‘d’– maximum deflection in end span in mm
‘dp’– allowable deflection (span/200) in mm
‘w’– safe working load in kg per linear metre

Example

Load required = 100kg per linear metre

Options available:
1. 50mm deep ladder will span up to a maximum of 2.396m with a deflection of 10.9mm
2. 100mm deep ladder will span up to a maximum of 3.952m with a deflection of 14.8mm
3. 125mm deep ladder will span up to a maximum of 5.321m with a deflection of 21.4mm
4. 150mm deep ladder will span up to a maximum of 6.000m with a deflection of 21.8mm