Ships Ladder can be classed a hybrid system consisting of part stair and part ladder and can accommodate movement more comfortable in mechanical or service spaces. Ships Ladders should not be used a means of egress.
The term ‘ships ladders’ originated from the wide use of these structures in the maritime industry. Ship builders had to install very steep stairs on board because most ships lacked the space for more graduated stairs. Today the terms ship’s ladders and ship’s stairs describe the same structures.
The dimensions of ship ladders vary based on available space so they are almost always custom fabricated. The angle of the ladder is usually 60°-75° and the design should use the shallowest angle possible within this range. The vertical rise between treads on ships ladders is generally between 225 – 300mm and the width is usually 600mm with the tread depth at 150mm. Handrails are always provided. Ship ladders can be finished in Galvanised steel, Aluminium and GRP materials and can be powder coated to standard RAL colours.
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