How to Treat Rough Sawn Pine

Rub your hand over the surface of the wood to feel for any raised or bumpy areas. If you find any, or if there are raised knots, remove them with the wood plane. Apply a firm even pressure, pushing the plane in the direction of the wood grain to remove the surface layer of the wood.

Wrap a piece of coarse-grit sandpaper around your sanding block and rub the surface of the wood with firm, even strokes, following the grain of the wood. Repeat until the surface is an even texture all over. Repeat using a medium-grit sandpaper until the pine feels smooth. Use an electric sander instead of the sanding block if you want. Wipe away dust with a wet rag. Allow the wood to air dry.

Apply wood stain (if desired) using a soft-bristled paintbrush. Stain should be applied sparingly, following the natural grain of the pine. Allow each coat to dry fully before applying more; this allows accurate color to develop and ensures against runs and brush marks in the finish. Choose a stain that incorporates a pesticide or, if leaving wood the natural color, apply a pesticide treatment following the same instructions. Leave to dry.

Finish the surface with your choice of sealant. Chemical sealants and varnish can be applied with a soft-bristled paintbrush. Natural oil and wax sealants should be rubbed into the surface using a clean rag and following the grain of the wood. Apply natural sealants generously; more than one application may be required depending on the porosity of the wood. When wax and oil sealants begin to sit on the surface of the wood without soaking in, use the cloth to remove excess product before buffing the wood to a shine.