Window treatments can be used as a design element to tie a room together, beginning with a window curtain rail. This rail will support and display your curtains, adding the finishing touches to your room, wherever in your home it may be. One important element of a window curtain rail is a furring strip. This long thin strip of wood makes a backing surface to support the finished surfaces in a room—in this case, your window curtain rail and curtains. Once you have these installed, positioning your screws for the curtain rail brackets completes Part 1 of the installation process.
Step 1 – Position Studs and Furring Strips
Attaching furring strips to concrete walls can easily be done, and will support your curtain rail. Lay the 2x2-inch kiln-dried wood stud flat side up along the bottom of the section of wall you would like to install your curtain rail. The center of the furring strip should be about 6 inches from one side of your window, and should run the entire height of the wall. The furring strips will sit on top of the stud. Run a small amount of liquid nail glue along the length of the bottom plate and stud to secure them to the wall.
Step 2 – Attach Studs and Furring Strips
Using a drill and a masonry bit, drill pilot holes into the bottom plate every 16 inches along the length of the plate. These holes should penetrate into the wall approximately 1.5 inches. Position the furring strips perpendicular to the studs, and hammer your fluted concrete nails into the holes through the furring strips. Install a stud and furring strip on the opposite side of your window, about 6 inches from the side of the window. Make sure that each one is level and straight. Once the glue has set, the furring strips will be strongly fastened to the wall.
Step 3 – Locate the Center of the Furring Strip
Once the furring strips are installed, mark the position of the center and border guidelines on the wall, about 1 inch from the floor and ceiling. Snap chalk lines that line up with your ceiling and floor lines to create your guideline for the center of the furring strip.
Step 4 – Position Screws for the Curtain Rail Brackets
The curtain rail needs to be between 4 and 6 inches above the window recess. Make your measurements for the curtain rail brackets, which should be positioned on a furring strip about 6 inches from the sides of the window. Check to make sure your line is level by putting a nail in each of the bracket markings and running a tight string between them. Use a level to make sure the line is level. Adjust as necessary to make it level.