Lean to ladder with rungs, professional version, width 420 mm, 14 rungs, with nivello support. Supplied = assembled. Product type = lean-to rung ladders. Number of rungs = 14 pcs. Access type = rungs. Length = 4170 mm. Material of treads = aluminium, ribbed. Step depth = 30 mm. Weight = 8.8 kg. Width = 420 mm. Frame material = aluminium. Cross beam width = 930 mm. Rung height = 58 mm. Max. load = 150 kg. Rail width = 25 mm. Optimum resting angle is predetermined by the stops in the nivello ladder feet. Robust rectangular tube rails. Beaded, permanent rung/rail connection. Rectangular rungs ribbed on both sides, 30 x 30 mm. Extra wide for even more safety and comfort. With non-slip nivello feet for optimum adhesion to floor, flexibility and safety. Ladder width 420 mm.