12 Steps Stair stringer is a set of 2 stringers of 6 steps article # 8064056 (model # 13906) and 1 stair stringer connector article # 80645119 (model # 13920) allows the construction of a solid and durable 12 steps staircase. A wooden support (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 97-½ in high structure, it is also suitable for a structure between 94 in and 101 in high. The stair stringer allows for the installation of a 11 in deep steps. Maximum spacing between stringers: 66-in for residential project and 30-in for commercial project. Allowable load of 100 lbs per square foot and ultimate load of 144 lbs per square foot.
For an elevation of 97 1/2-in from top of the deck to the landing
Admissible load 100 lbs per square foot, ultimate load 144 lbs per square foot
Allows installation of 11 in deep Treads
Allows several Treads finishes: steel, wood, fiberglass, etc.