End frame with ladder for chain walkway

Device made of non-impregnated mountain larch, with slanted end grain (wood protection measure), sawn timber heart-cut. Climbing rungs made of hardwood (ash) Ø 4.2 cm, milled, mortised, secured against twisting. Multi-layer board made of three-layer board (3 cm) or five-layer board (4 cm), high dimensional stability, weatherproof glued in accordance with DIN EN 13353:2011. Profiled disc for optimum pressure distribution and protection against water ingress. Retractable two-part screws.