# How to Cut Header Casings
Things You'll Need
- Header casing
- Tape measure
- Electric miter saw
- Pencil
- Pneumatic nailer
- Finish nails
- Wood putty
- Paintable caulk
Instructions
-
-
1
Measure the inside of the doors or windows where the header casings are to be installed. Measurement should be done with a tape measure.
-
2
Mark the measurement taken on the casing with a pencil. Clearly indicate the places to make cuts on the inner edge of the casings.
-
3
Set the electric miter saw to cut at an angle of forty-five degrees.
-
4
Put the header casing against the cutting fence in the electric miter saw.
-
5
Align the blade of the miter saw with the pencil marks on the casings.
-
6
Cut strictly along the marked lines.Hold each trimmed header casing up to the top of a door or window.
-
7
Nail the header casing into place with a pneumatic nailer and one and a half-inch finish nails. Make sure the header casing goes in just underneath the frame and in the gap.
-
8
Nail the header casing at the other edge the same way.
-
9
Fill the all gaps at the mitered corners with wood putty.Fill the spaces between the jamb and the casing with paintable caulk.Paint the header casing to match the trim of the door or the window.
-
1
