Heavy-duty aluminum dock ladder features extra wide steps for increased security under foot. The 17"L x 4"W steps have slightly rounded edges so you feel comfortable and stable when climbing in and out of the water. Grooved surface offers traction, yet still remains kind to your feet. 12" vertical spacing between steps. Standard style for permanent mounting on a dock or seawall. 665lb. max boarding capacity. Swings up and back allowing complete ladder to be kept out of water Constructed from 1-1/4" ID pipe made from marine grade aluminum 6063 T-5 to resist corrosion All welded construction for strength Extruded aluminum channels are serrated to produce a non-skid surface rung with no sharp edges Use as either a dock or seawall ladder Standard ladder sizes are: 3, 4, 5 & 7 step models New locking pin mechanism locks ladder in either up or down positions Rated for 665 lbs. per rung