DOCK EDGE ROTO-MOLDED SWING-UP LADDER - 4-STEP MODEL (GREY FINISH) Tough & durable. Swings up & out of the way, locking in place when not in use. Non-corrosive. Will not fade or crack. Features molded-in U.V. inhibitors & fungicides. Constructed of polyethylene w/stainless steel assembly hardware. Gable Ht.: 20.5''. Gable Depth: 19.5''. Tread Depth: 4''. Tread Width: 14''. Dist. to 1st Step: 12.5''. Dist. Bwtn. Treads: 10.5''. Grey finish.