With non-slip rubber feet on the top and bottom, can be used on both sides, tested and certified by the professional association according to the new BGV D36, GS guideline. Standing height: 4.21 m The basic rule is: Ladders can be used as a high workplace if the employee stands with both feet on a step (min. 80 mm), platform or hanging platform and the standing position on the ladder is no higher than 5 m above the installation surface. To make this ladder usable again, a stepladder is required (see accessories list).,