Stringer ends are marked to indicate where plumb and level cuts should be made if the surrounding structure of the building has been made exactly to plan. The actual cuts are made on site to fit the building. Treads are pre-cut to the correct lengths. Landings are pre-assembled in the shop and taken apart for economical shipping. Handrail posts and handrails are shipped a few inches longer than required so they can be cut to fit on site.
Wider widths are available.
Stair installation involves cutting the stringers to fit the mating portion of the building, then assembling the treads into the mortises of each stringer. The top end of the complete stringer and tread unit is then lifted and fastened in its final position. Landing frame pieces are assembled and fastened as prescribed by the instructions to the adjacent structure or floor. The landing deck is then installed before the attachment of the stringer and tread units that will go to and from the landing. Handrails are then cut to fit the posts and attached, followed by installation of the balusters.