Measure the area along the wall with a tape measure to determine the total number of feet of molding that will be needed. Run the tape measure across each side of the room and record the measurements on a piece of paper.
Add up the total linear feet of each side of the room and purchase the proper amount of bed molding from a local hardware store. Add 10 percent extra for the cuts that will need to be made.
Measure and mark the first piece of bed molding with a pencil. Place it upside down on the miter saw, against the fence on the saw. Line up the blade to the mark where the cut is going to be made. Clamp down the molding with the clamp pins.
Turn on the saw and pull down on the lever. Run the blade of the saw carefully through the molding and release the lever to turn off the saw once the cut has been made.
Line the bed molding up along the wall under the chair rail and install it with nails. Shoot a nail into the molding every 16 inches with a nail gun. Repeat this process for each piece of molding until the entire area of the room has been covered. For pieces that do not need to be cut, proceed straight to installation.
Fill all nail holes on the bed molding with wood putty using a putty knife. Sand over the putty to smooth everything out and create a surface suitable for painting.
Things You Will Need
- Tape measure
- Miter saw
- Safety goggles
- Nail gun
- Wood putty
- Putty knife
- Bed molding like many other moldings sold at hardware stores will come in various sizes. These can be cut down at the store for proper transportation and also cut to size if the exact measurements are known.
- Bed molding is generally installed under chair rail.