Notched (cut) wood stair stringers for a straight-run staircase, supplied as QD stringers cut from LVL, pressure-treated, Douglas fir or timber stock (ASDTL-001), laid out from the floor-to-floor height, run to the floor joist, tread depth and overhang, step rise and finish thicknesses, for residential or commercial use. Treads, kick plates and floors are modelled for fit only; the stringers are the deliverable.