Floor Joist Over Concrete Slab

Building a framed wood floor over an existing concrete slab can provide the space needed for electric wiring heat venting plumbing drain lines and added insulation when remodeling a basement or garage space.

Floor joist over concrete slab. They call them sleeper joists. Secure each length to the slab with concrete nails spaced approximately 80 cm 32 inches apart and 20 to 30 cm 8 to 12 inches from each end. 1 pound of 1 1 2 inch deck screws. It s a fairly simple project and the cost is reasonable 3 to 6 per sq.

However they just left the concrete for the floor so there are two steps down. A concrete slab provides a firm stable base for pavers. Lay another 2x4 plate around the perimeter and like make said again at 4 5 o c. This will give a minimum 1 1 2 inches space between the bottom of the flooring and the concrete slab and about 14 inches between joists.

The procedure for installing a floor structure over a slab with 2 by 6 joists can be. Cover the patio with a thin layer of sand lay pavers over it and the results look like a standard paver patio. Because some water is seeping into the shed your first. Maybe i m using the wrong terminology.

Then lay 6 mil poly over it and staple it down. One thing i ll say given the age of the slab and from what i ve seen of the rest of the construction the slab was probably poured right over grade with no vapor barrier or insulation as shown in the above drawing. Then install 24 x 1 1 2 foam between the 2x4 s. When i do this i will only have about 7 or 8 inches between the concrete.

Sleepers are long pieces of wood placed on the basement slab that support the subfloor. Install it flat on the slab surface with the outside edge aligned against the side wall or the edge of the floor line. I believe the irc says 18 min between bottom of joists and floor in crawlspace. These will be the end sill plates that support the ends of the floor joists.

Purchase 1 pound of 16d framing nails for every 20 square feet of floor. What i want to do is frame a floor over the concrete that is level with the house floor. Been getting a lot of wonderful information around here lately. Hopefully you guys can help me with a project i have in the works or at least on the drawing board if you will.

3 4 subfloor over them. Going the opposite direction of the pt on the concrete.