- 40-15-7 design loads used.
- Trusses designed under IRC or IBC code as required.
- 18" (minimum) deep trusses recommended.
- 19.2" oc spacing typical.
- Add 15 psf additional design load for granite counter tops.
- Add 15 psf x height for cultured stone on interior walls/fireplaces.
- Strive for L/480 deflection or greater depending on what’s being supported.
- Determine building line with framer and design trusses accordingly whether building line = stud line or building line = sheathing line.
- Deduct for foam rim as needed.
- Shorten trusses 5/8" @ angled walls so outside of ribbon board is flush with stud line.
- Send out a detailed floor truss layout.
- All trusses have a black up arrow that corresponds with the truss layout specifying which end of the truss goes to which side of building.
- All trusses have a white tag attached to one end of truss specifying truss label, loading, spacing & quantity.
- We watch for areas with excessive spans or deflection and notify customer of options for better design.
- Line up floor webs for plumbing & heating.
- Watch for mechanical issues to make sure areas can get heating/cooling ducts.
- Locate plumbing drains on truss layout to prevent plumbers from cutting, notching or drilling thru trusses. Framers can shift trusses and/or add extra truss where needed.
- Watch areas for dropped or flush beams.
- Figure girder to carry flush beam to open up railings @ stairway.
- Review stairwell openings for proper headroom to make sure the proper number of risers is figured.
- Cantilevered trusses are designed with future deck loads applied if applicable.
Floor Trusses (Pictured above) are specially designed to meet your individual needs.