Laying Floor Joists On Concrete

Install it flat on the slab surface with the outside edge aligned against the side wall or the edge of the floor line.

Laying floor joists on concrete.

Can i just lay my floor joist directly on the concrete. Put the floor joists on the layout marks on the sill plate. These will be the end sill plates that support the ends of the floor joists. Cut the floor joists.

Renovating a bathroom and we have stripped back to the concrete floor underneath. If the uneven floor is due to floor joists that have warped or twisted over time or were incorrectly installed the only way to level the floor is to remove the subflooring and shim the joists. Space the joists according to standard space codes no greater than 16 inches on center. Nail each end of each floor joists to the sill plates according to the manufactures requirements usually 3 10d nails floor joists attached to rim joist.

Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. Treated plywood to the concrete with concrete screws spaced every 16 in. Protect the sleeper system. We are putting new wooden joists down and a.

Alternatively screw rows of treated 1x4s to the concrete 16 in. A spacing of 16 inches is great but joists are often spaced by 24 inches and that s more dicey usually requiring an extra layer of subflooring. The exact number of floor joists you ll need will depend on the size of the floor. Install it flat on the slab surface with the outside edge aligned against the side wall or the edge of the floor line.

Lay the 1x4s perpendicular to the direction you intend to install the floor planks. I just moved into an outdated 1959 ground flr maisonette with concrete floors. Install the sleepers directly on the concrete and make sure the screws penetrate the surface by at least one inch. Floor joists laid out between the rim joists.

Then nail the flooring planks with a standard flooring nailer see photo for details. The spacing of the floor joists is also an important factor but you can usually compensate for wide spacing by adding extra layers of subflooring. The concrete seems to have been treated with a. Install the sleeper joists parallel to the direction of the water run off.

These will be the end sill plates that support the ends of the floor joists. Laying wooden joists on concrete floor. I ve done joist on concrete and seen it done in other parts of the country but i never liked it. Joists over concrete wall.