Framing Around Stairwell Floor Truss

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Framing around stairwell floor truss.

Architects engineers and contractors are using floor trusses to create high quality squeak free construction with the added benefits of reduced framing time waste and callbacks. The stairway design should be completed before floor framing begins because the stairwell opening must be 38 framed at the time the floor is constructed. They should span the same length as the the truss joist when running in the same direction. 1 3 4 x depth of floor lvl s would be best at framing the opening since they are stronger than the typical 2x s.

The rough framed opening for a stairwell should be 1 inch wider than the desired finished stairway width. Frame the remaining end to finish the stairs. The joists parallel to the stair should be doubled and so should the headers. Alternatively cut an estimated opening and frame both sides and one end.

Design versatility and the open space provided between the chords and webs of floor trusses for mechanical and plumbing runs offer tremendous advantages for today s complex and sophisticated building designs. Extend the opposite end which hangs over the staircase as necessary once your stairs are in place. Regardless of where the stair is located you need to use conventional framing for the stair opening. Floor trusses are the solution to many floor framing problems.