Framing A Floor On Top Of A Concrete Slab

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

Framing a floor on top of a concrete slab.

Sills and sleepers on a concrete or masonry slab that is in direct contact with the ground unless separated from such slab by an impervious moisture barrier. 1 pound of 1 1 2 inch deck screws. Learning how to form a concrete slab will be easy if you follow my step by step instructions. All wood framing members that rest on concrete or masonry exterior foundation walls and are less than 8 inches 203 mm from the exposed ground.

Choose a length that will penetrate the concrete at least 1 inch. Consider a wood shed floor treated lumber joists and plywood. I ve formed over a thousand concrete slabs in the 30 years that i ve been doing concrete work. Purchase 1 pound of 16d framing nails for every 20 square feet of floor.

Sleepers are long pieces of wood placed on the basement slab that support the subfloor. Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. Some concrete nails are the cut nail design shown in the photo with a thick flat shank and a tapering v profile. Exterior wall on slab must be out on the edge.

Be sure to wear safety goggles when hammering masonry nails into concrete. This prevents water from leaking under the bottom of the wall to the inside of the building. Though some floors are built on a concrete slab flat on the ground most floors are raised above the ground. Forming a concrete slab.

Raised floors are more resilient under foot and provide access for heating equipment insulation plumbing wiring and other mechanical. There are many ways to form a garage slab or form a house slab. An illustrated look at how a typical wood frame floor is built including sublooring and more. Other nails have a thick shank that sometimes has spiral ridges for improved holding power.