Materials and Equipment:
-MDF chair-rail of narrow width (1-2")
- pin/brad-nailer and air compressor (I prefer 23 gauge pin-nailer)
- 1" brad nails/pins
- mitre saw
- measuring tape
- paintable caulking and gun
- carpenter's glue (optional)
Plan out your panels! Know where you want them to fit, and what you want them to look like. Measure your walls to determine the size (height and width of your panels) and the width in between and around your panels. Try to space them out in a way that creates as much even negative space around them as possible. Know how many pieces you need to cut and of what size.
Use a mitre saw set at a 45 degree angle to cut your chair-rail according to your measurements. Make sure you cut your angle in one direction at one end of your piece, and the opposite direction on the other side to ensure that when your pieces are brought together they will form a 90 degree angle.
Use hot-glue to join together the pieces of your panel.
Glue vs. No Glue:
Pros of using glue:
Stronger and more permanent.
Cons of using glue:
More difficult to correct mistakes if necessary. If/when you ever want to remove the panels, it will cause more damage to your walls.
If you wish to use glue, apply a thin line of carpenter's glue to the back of the panel before nailing it to the wall.