How To Frame A Floor Over Concrete

Alternatively screw rows of treated 1x4s to the concrete 16 in.

How to frame a floor over concrete.

These folks have a sunroom which is built with concrete blocks concrete floor and old aluminum storm windows. The most straightforward method is not to attach it but float the floor on top. Don t worry about the gap. 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.

Secure each length to the slab with concrete nails spaced approximately 32 inches apart and 8 to 12 inches from each end. There are three ways to lay a floor over concrete. Framing a floor over concrete i ve got a project coming up and have some questions. When we build the frame on the ground we ll need to slide it vertically into place.

Plan is to open things up between the two knock out the old windows and the block wall. Lay 6 mil polyethylene sheeting over the concrete to minimize moisture migration from the concrete up into the wood flooring. Use a minimum 3 4 inch cd exposure 1 plywood sheathing 4 foot by 8 foot sheets. Place 16 inch planks perpendicular or diagonal to direction of flooring.

We ll need some breathing room to make it fit. 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. You can attach it directly to the concrete or install a subfloor first and then attach the floor to that. The hard way nails or screws.

The floor is 4 inches lower than the adjacent kitchen floor. These will be the end sill plates that support the ends of the floor joists. We ll take care of that in step 3.