If you want to create the look of an old wood beam, this is a fairly simple, and fast way to do it.

1 - Use Standard Pine 1x6s. They are cheap, and already have imperfections.

2 - Using 3 boards, build a 3-sided "trough" that will be mounted on your ceiling.

3 - Using an electric chain saw, completely rough up every surface.

4 - Using a course grit orbital sander, knock off all the frayed wood.

5 - Stain and install!

Step 1: Buy Cheap Pine Boards

The cheapest boards have the most defects, which adds character.

Step 2: Build a Beam Shape

Glue and nail the boards together in a box shape.

Hold the saw at about 15 degrees and drag it over the wood

This is just a light sanding to remove any wood chips that are hanging on

Use whatever brand and color you like. Paint on and quickly wipe off excess.

Let the stain dry overnight and your beams are ready to mount.