Wood Stud Wall On Concrete Slab

Exterior wall on slab must be out on the edge.

Wood stud wall on concrete slab.

The lag bolt should be 4 long and a 1 2 thick. The cut nail has a square tapered shape with a square tip. When wood is in contact with the concrete the concrete leaches out its water into the wood. The lag shield should be 2 long.

These nails are driven through a board and into concrete underneath much like nailing a wood board to a wood floor. Attach a wood cutting bit to the power drill and pre drill an anchor hole through each mark. The easiest approach is simply to nail the wood to the concrete. But it is especially a concern for fresh concrete.

Check the wall for plumb meaning straight up and. Width will work with a 2 4 wall on top. If you choose a masonry curb check with a mason s supply yard for the cmus concrete masonry units that suit your purpose. A carbide tipped bit is ideal for drilling concrete and it does an acceptable job of punching through steel runner but it drills poorly through wood.

So it s a good idea to drill holes in the sole plate with an ordinary wood bit before you tip the wall into place. An exterior wall must be placed on the outside edge of the slab so the exterior siding laps down and over the edge of the slab. Cast lintel that might serve nicely. Two common nail options are shown below.

Anyplace where wood meets the ground or concrete the lumber must be pressure treated. Any other wood will rot when exposed to moisture likely to leach through the concrete. You want the hole to be deeper than the bolt by at least 1 2 or more. A yard near me stocks a 3 1 2 in.

Drill a 3 8 hole through the floor plate with a standard wood bit then switch to a hammer drill with a 3 8 masonry bit to drill at least a couple inches into the concrete. This prevents water from leaking under the bottom of the wall to the inside of the building. On top of a foundation wall there is a barrier in cold climates that s a thin foam called sill seal that. If the pad is in place the best way to fasten the bottom plate of the wall to the concrete pad is in the use of a lag shield as shown in figure 4 lag bolt as shown in figure 5 sometimes referred to as a lag screw and a large washer.

The cut nail and the concrete nail. Align the wall with the location guide marks made earlier. Concrete cures this way for many years it almost continually is drying out. The curb can be made from masonry or from wood.

Step 7 lift the wall and slide the wall over the anchors. For additional moisture protection a gasket or strip of closed cell foam can be installed between the.