The wall extension ladder is made out of tensile aluminium ‘C’ section 66.6mm X 31.25mm X 3mm thick {approx}
The steps are made out of non –slip aluminium corrugated fluted pipe 25.4mm dia & 3mm thick.The pipes are riveted at distance of one foot between two steps.
Two numbers of MS clamps are provided for locking ladder in self supporting position.