How To Set Floor Trusses On A Wall

A preassembled unit of floor joists subflooring.

How to set floor trusses on a wall.

Setting the first trusses every step of the truss installation follows. Truss installation isn t difficult. The guidelines for these are shown in fig. What is the proper way to attach an interior basement wall to floor trusses both perpendicular walls and walls that run parallel with the bottom chord and fall between the trusses.

The two joists at the top of the stairs provide additional support to hold the stair stringers. In fact floor trusses are lighter and easier to maneuver than solid heavy joists. I have been told to nail directly to the trusses and i have been told to leave a 1 8 inch to 1 4 inch gap between the top plate and the bottom chord. Elements that make a floor truss.

Each truss member is numbered and the first step is to transfer the numbers to the top wall plates according to the diagram. The truss manufacturer can build them so strong that there s no bounce to the floor at all. If you re remodeling or building with i joists your lumber supplier can provide you with a set of hole drilling standards to follow. Structural support usually a beam wall or post that is designed by the building designer to carry the truss reaction loads to the foundation.

Notice how the rim joist sits on the inside of the stairwell wall so the floor joists can bear on the wall. You can t notch or drill them anywhere. B the guidelines are simple. Stairway opening in floor joists.

Inclined or horizontal member that establishes the bottom of a truss usually carrying combined tension and bending stresses. For those working with the less common open web or floor truss joists fig.