SKU HD336716985
18 Steps Stair stringer is a (set of 3) stringers, 3 of 6 steps article 308771946 (model 13906) and 2 stairs stringers connectors article 308771972 (model 13920) allows the construction of a solid and durable 18 steps staircase. 2 wooden supports (4 in x 4 in) is 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 142 ½ in. high structure, it is also suitable for a structure between 139 in and 146 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 commercials projects. Allowable load of 100 lbs per sq. ft. and ultimate load of 144 lbs per sq. ft..
