Single ladder in aluminum, with a light and easy-to-handle structure.
Upright profile 66x22 mm on the 14 and 16 models, 84x22 mm on the 18 scale.
Knurled rungs (mm 30x30) with a square cross-section, fixed to the upright by re-edging, for a high seal.
Stabilizer bar with anti-slip feet mandatory: use according to EN131 standard. Width 900 mm on 14 and 16 rungs, 1200 mm on 18 rungs. Removable in case of transport.
