Join Date: Nov 2013
Location: Lake Gaston, NC
That's about the only situation where I miter inside corners with crown-inside a box. One big difference is we build the boxes on the ground, and then put them up with a couple of sheetrock lifts.
These are made from MDF and PowerGrab, with a few 23 ga. pins here and there, so no nail holes to have to sand, or craters. Bevels on panels are all separate pieces. A coat of primer on the ground, light sanding, and finish sprayed after everything is up.
Dimensions are about a couple of inches smaller than 4' wide the narrow way. Room is 16 x 22 with 10 foot ceiling. Coffers are 3 x 4 to cover the ceiling. It looks a lot better in person, than in the picture.
This was a first prototype that I put in our TV room. Since then, they've gotten a bit fancier. I've even had two architects, and an interior designer tell us they love it.
The MDF coffers were mounted to a plywood backer, which had flanges sticking out the sides, that were screwed to the ceiling joists. These fillers (too late, and too tired to remember what the proper name is) were nailed to strips, and coffers were fitted tight as each went up against the fillers. After this ceiling, we started dadoing, and they actually go up easier, and no handwork overhead before spraying.
No spiders were harmed in taking this picture.
Last edited by Tom King; 01-24-2015 at 11:39 PM.