A sheet of beadboard has finished seams designed to fit snugly together. When properly installed, you can't even tell a seam is there. The problem with seams arises when you have to cut a piece of beadboard to fit, then you have what is called a butt seam. When you properly cover the butt seams in beadboard, just like the finished seams, you will not even notice it is there.
Things You'll Need
- Wood putty
- Putty knife
- 220 grit sandpaper
- Tack cloth
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Fill the seam joint with wood putty. Using your putty knife, smooth wood putty over the beadboard seam until it is even with both sides of the adjoining pieces of beadboard. Let the putty dry.
Sand the covered joint with 220 grit sandpaper.
Wipe down the seam with tack cloth to remove the dust created by the sanding.
Refill the joint until the dried putty is even with the adjoining pieces of beadboard. You may have to do this a couple of times because wood putty shrinks as it dries.