Rung sliding ladder made of GRP;Tie bars made of glass-fibre reinforced rectangular tube profiles (min. 10 years age resistance);Square rungs 28 x 29 mm grooved on both sides;Without fillers;High-strength rung/ tie bar connection;Fittings galvanised steel;For sizes up to 2 x 12 rungs: Simple height adjustment from rung to rung;Top ladder from size 2 x 12 with wall rollers;Corrosion-resistant guide fittings;Top ladders up to 3.0 m with nivello ladder shoes;Rung spacing: 280 mm;Ladder width: 420 mm (without crossbar);Maximum load: 150 kg;Standard crossbar with non-slip ladder shoes in optimum width to the selected product for safe standing and climbing on single ladders over 3.0 m. The traverse is supplied loose and is bolted twice to the lower end of the stile;Suitable for working near or on live parts;Extension ladder tested to DIN EN 131. The design takes into account EN 61478:2002 (Cat. 1: 28,000 volts);Note: According to the standard, the attached extension ladder part cannot be separated from the ladder for lengths over 3.0 m;Note: Products with GRP parts are excluded from exchange due to their sensitivity.