A stair stringer terminates at a concrete-filled landing platform with a defined work point located two inches above the landing surface. The stair tread aligns with a one-and-one-quarter-inch offset from the stringer top edge work point. Reference dimensions establish the spatial relationship between the stair run geometry and the supporting concrete slab.
2" WORK POINT TOP OF STRINGER 033000 - CONCRETE FILLED LANDING PLATFORM 1 1/4" TREAD
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