SKU 13917
17 Steps Stair stringer is a set of 3 stringers, 1 of 5 steps item 308771936 (model 13905), 2 of 6 steps item 308771946 (model 13906) and 2 stairs stringers connectors article 308771972 (model 13920) allows the construction of a solid and durable 17 steps staircase. 2 wooden supports (4 in x 4 in) are required, not included. Once assembled this stair stringer is ready to receive steps in steel, fiberglass, wood (use 2 x 2 in x 6 in boards or 1 x 2 in x 12 in board), etc. Lightweight and easy to handle, it sets up quickly and easily. The stair stringer is powder coated paint offering excellent rust resistance.Ideal for a 135-in high structure, it is also suitable for a structure between 131 ½-in and 138 ½-in high. The stair stringer allows for the installation of a 11-in deep steps. Maximum spacing between stringers: 54-in for residential project. Please contact manufacturer for commericals projects. Allowable load of 100 lbs per square foot and ultimate load of 144 lbs per square foot.
