How to Treat Indoor Wooden Beams

Dachkonstruktion image by inapf from Fotolia.com

Indoor wooden beams are typically intended to support the roof of a home. They can extend from the floor to the ceiling as a column, or as rafters along the ceiling. Like all wooden surfaces, the beams are susceptible to regular wear. This includes a gradual loss in colour and density, or even cracking over time.

To prevent these natural occurrences, treat the wood with a stain and varnish to preserve and protect it.

Protect your eyes with safety goggles and wear a dust mask before working on a beam overhead. Sand the wood with a 100-grit sanding sponge until it appears uniformly dull. This prepares the surface for staining while eliminating dirt, blemishes and other surface imperfections.

  • Indoor wooden beams are typically intended to support the roof of a home.
  • To prevent these natural occurrences, treat the wood with a stain and varnish to preserve and protect it.

Dust the beam to remove the grit that resulted from sanding. Wipe it down with a tack cloth to clean the remainder of the sawdust.

Stir a can of wood stain with a stirring stick to thoroughly mix all of the contents at the bottom of the container. Saturate the wood with an even coat using a natural-bristle brush or paint roller to even out the wood's natural colour. Quickly wipe away the excess product before it dries.

Brush a single coat of sanding sealer over the stain once it has dried overnight. Use long, back-and-forth strokes for even coverage. Once the coat is dry to the touch, smooth it thoroughly with a 280-grit sanding sponge.

  • Dust the beam to remove the grit that resulted from sanding.
  • Saturate the wood with an even coat using a natural-bristle brush or paint roller to even out the wood's natural colour.

Seal and protect the beam's reconditioned finish using a polyurethane wood varnish. Apply the product with a painter's rag or foam applicator brush. Allow it to cure overnight, then sand the coat with the 280-grit sponge.

Repeat the same procedure for at least one to two more coats of varnish to seal the moisture in the wood. Leave the top coat unsanded.

×