How To Set Floor Teusses On A Wall

Maximum notch depth in the outer third of a joist is one sixth of the joist depth.

How to set floor teusses on a wall.

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. Use a chalk line to mark where you want to place the new wall along the floor. A floor truss can be designed to span 30 or more feet with ease. If the joists are parallel to the new wall adjust the layout so that the wall is directly under a joist.

The rim joist sits vertically on top of the sill plate along the outside of the frame to create a lip for the main floor joists. Stairway opening in floor joists. Truss installation isn t difficult. Begin wall assembly by planning the layout of the new wall.

This comes in handy if you desire a. You ll use the same size lumber to assemble the rim joists as you will for the main floor joists. No notching in the middle third of a joist. 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. For most jobs 2 in 5 1 cm x 10 in 25 cm boards are an ideal size. Run a stud finder along the ceiling to locate the joists. The maximum depth of a notch at the end of a joist where it rests on a wall or beam can t exceed one quarter of the joist depth.

The two joists at the top of the stairs provide additional support to hold the stair stringers. Notice how the rim joist sits on the inside of the stairwell wall so the floor joists can bear on the wall.