How To Build A Coffered Ceiling With Box Beams

We have 9 ceilings on the main floor and the recesses area in this ceiling extends above that 9 so we had a lot to work with here.

How to build a coffered ceiling with box beams.

The width and height of the box beams also has to be uniform. This room had a coffered ceiling that i had to work with. Install the other main beam the same way. Scribe and cut the main beams the same way you did for the perimeter crossbeams in steps 6 and 7.

This is the same technique used on all three of my box beam ceilings if you remember the kitchen and living room updates too. Even though most of the beams in a coffered ceiling are hollow they should look like a convincing structural system. Given this construction coffered ceilings work best in rooms with high. Each recessed square area in the coffered ceiling grid should be the same dimension.

Use shims to make the joints flush as needed nailing through them and into the ceiling at every joist. Then apply adhesive to a beam and pressure fit it in place using your deadman to hold one end. Although coffered ceilings draw the eye upward the beams extend downward into a room taking up some overhead space. By adding a coffered or box beam ceiling made of softwood lumber you can make an often overlooked area the focal point of your room.

The grid can either start along the perimeter wall or be inset from the perimeter wall as shown in the ceiling plan on the left. Make a ceiling plan and layout the coffer grid.