This is the rigid flight version of the folding stair model. Guarantees reduced side flexibility and can bear considerable loads. Available in several ready-to-deliver models.
 

Opening dimensions Number of steps Height
100 x 50 11 270-300
100 x 70 11 270-300
130 x 70 11 270-300
90 x 50 11 270-300
90 x 70 11 270-300