| British Standards | Duty Rating | Maximum Loading |
|---|
| | Kg | Stones | Kg | Stones |
| Class 3 (Domestic) BS2037 | 95kg | 14.96 stones | 125 kg | 19.68 stones |
| (Trade) BSEN131 | No Current Standard | 150 kg | 23.62 stones |
| Class 1 - Heavy Duty/Industrial BS2037 | 130kg | 20.47 stones | 175 kg | 27.56 stones |
| * Towers BS1139 (Part 3) 1994 -HD1004 |
