How To Frame A Floor Over Concrete

When we build the frame on the ground we ll need to slide it vertically into place.

How to frame a floor over concrete. Use a minimum 3 4 inch cd exposure 1 plywood sheathing 4 foot by 8 foot sheets. The floor is 4 inches lower than the adjacent kitchen floor. We ll take care of that in step 3. Studs are placed every 16 or 24 along the wall so you ll need enough 2 x 4 boards to cover it.

Treated plywood to the concrete with concrete screws spaced every 16 in. Framing a floor over concrete i ve got a project coming up and have some questions. Begin by cutting sheets to 16 inches by 8 feet or smaller panels marked 3 8 of an inch deep on back and a minimum of every 12 inches across in width. You can attach it directly to the concrete or install a subfloor first and then attach the floor to that.

Stack three 2x4 blocks on the concrete floor at each stud location and measure the stud length for each stud along the wall by measuring from the string line down to the top of the blocks 1 block for the sill plate and 2 blocks for the top plate cut the studs to length making sure to keep them in their proper order. Plan is to open things up between the two knock out the old windows and the block wall. There are three ways to lay a floor over concrete. These folks have a sunroom which is built with concrete blocks concrete floor and old aluminum storm windows.

The hard way nails or screws. Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. We ll need some breathing room to make it fit. Don t worry about the gap.

Place 16 inch planks perpendicular or diagonal to direction of flooring. Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring. The most straightforward method is not to attach it but float the floor on top.