How to install decorative beam
Instead of using a solid wood beam, try building a three sided 4x10 box (2 sides and a bottom) using 3/4 inch cedar plank. Then rip lengths of ply wood to the inside width of your hollow beam ( minus 1/16 in ). Fasten a double row of this ripped ply to your ridge beam using 2 1/2 inch drywall srews. Then cut your 3 sided beam to length. I recommend transfering your pencil line around the beam with a speed square, cutting a little off the mark with a worm drive saw, and then sanding to your line with a belt sander, slightly rounding the top corners. Set up ladders at both ends of the room and shoulder up the beam, slipping it over the plywood cleats. I use a 15 g 1 3/4 inch pneumatic nailer. This can be done before or after finish drywall. Good luck.
Last edited by lbros; 12-23-2006 at 12:27 PM.