Sure Step Ships Ladder
Ship ladders shall be all aluminum and have 4" (101.6mm) wide steps spaced with the angle of rise as shown on the illustrations below. Aluminum channel stringers .25" (6.35mm) x 2" (50.8mm) x 6" (152.4mm) shall be used for side rails. Handrails to be aluminum pipe, no less than 1.9" (48.2mm) in diameter with radiused corners, free of sharp edges.
Sure Step Ships Ladders with Hand Rail and Landing with options for Bridge Return; Ship Ladders (SL); Aluminum, fixed access, safety ladder