Whitecap Industries I/O Teak Swim Platform w/ LadderWhitecap teak swim platform with ladder and mounting hardware for boats with inboard/outboard motors. Features: 304 Stainless steel hardware; Assembly required; Dimensions: 18"W (back) x 17"W (front) x 15"D x 1-5/16" thick; Included: (1) Platform; (2) Over & under supports (handrail); (4) 1/4-20 x 1-3/4" Round head machine screws; (4) 1/4" Nylon lock nuts;