Strip whatever piece of furniture you plan to paint. You can do this by sanding off any paint or sealant on it or using a chemical stripper.
Thin your paint. If you are using an oil-based paint, thin it by mixing three parts paint to one part mineral spirits. If you are using a latex paint, thin it by adding four parts water to one part of paint. Stir the paint mixture until it’s completely mixed.
Apply the paint to the piece of furniture; work in small sections, since you’ll have to go back over each section with a rag before the paint dries.
Allow the paint to sit for a few minutes before going over it with a rag. Work the rag in the direction of the wood grain.
Use the rag to wipe off any excess paint. You want the furniture being whitewashed to get just a light coat of paint, so that you can almost see what’s underneath it.
Repeat the paint application followed by a rag until all areas of the piece are covered to your liking.
Allow the paint to dry for a minimum of a full day.
Sand down the paint in areas where it looks heavier or whiter than you’d like.
Apply a low-luster sealant to protect your paint job.