The platform sits astride the structure and firmly clamped in position by adjustable clamps either side. The range of adjustment is 0 to 600mm, plus the option to bolt-down into the wall via two side brackets if necessary.
Egress and access MUST be limited to one person on the ladder or platform at any one time. The StepSafe Stairway user guide is available to download as a pdf from the Groundforce Technical Library.