The 3.4m triple extension ladder is a versatile model which extends to a height of 8.16m. The ladder features D-shaped rungs for extra comfort and security and is designed for strength and rigidity at any height. Suitable for professional use. D-shaped rungs for extra comfort and security and is designed for strength and rigidity at any height. Non-slip treads . D treads. Maximum safe working load 150kg. Size H3.37, W0.36, D0.21m. Extended height 8.74m. 1 working position. Suitable for professional and domestic use. Manufacturers 5 year guarantee.