LFI TuFF Aluminium 4 Tread Platform Step Ladder LFI TuFF K3 Aluminium Platform Stepladders In BS EN131-2:2010 + A2:2017, newly improved torsion & stiffness tests meet. Tested on a gruelling 50,000 cycle \"climbing\" durability test, it has all of the BS2037 Class 1 strength requirements. Graded to 150kgs maximum load and service. Wide 80 mm serrated non-slip treads with reinforced ridge and double riveting at each corner for optimum durability and comfort when operating at high altitude. Broad ribbed channel section stiles, back legs box section, steel hinge & strengthened bottom tread & horns for improved heavy-use resistance. 3 mm thick, heavy duty, 5 bar high grip surface checker board. Technical Specs: Max Standing Height : 0.9m Max Working Height: 2.5m Closed Dimensions: L 1.60m x W 0.49m Open Depth: 0.93m Weight: 7.3kg Max Load: 150kg Class Use: Trade Material: Aluminium UK Manufactured: Yes Warranty: 10 years