LFI TuFF Aluminium 4 Tread Swingback Builders Step Ladder LFI TuFF K3 Aluminium Swingback Builders Stepladders Complies with the BS EN131-2:2010 + A2:2017 new enhanced torsion & toughness test. Checked for a gruelling 50,000 cycle \"climbing\" endurance test it has all the BS2037 Class 1 strength criteria. Up to 150kgs full load and duty rating. Wide 80 mm non-slip treads with reinforcement of the ridge and double riveting at each corner for optimum longevity and comfort when operating at height. Broad section ribbed channel stiles, back legs box section, steel hinge & strengthened bottom tread & horns for increased heavy-use resistance. Heavy-duty 3 mm thick, platform high grip 5 bar checker board. Technical Specs: Max Standing Height : 0.4m Max Working Height: 2.0m Closed Dimensions: L 0.95m x W 0.45m Open Depth: 0.5m Weight: 4.1kg Max Load: 150kg Class Use: Trade Material: Aluminium UK Manufactured: Yes Warranty: 10 years