Checking Your Project for Defects

• Before you start finishing your custom carpentry project, it should be inspected for any defects in workmanship. Going over it thoroughly will prevent finding problems later in the process that may force you to start all over again.
  
  

Comprehensive Rough Sanding

• You should always rough sand the project first. This levels uneven surfaces, smooths mitered joints and removes any work marks. You also need to eliminate any loose knots or splinters in the wood and fill holes and other imperfections. Different finishes require different preparation and materials, so using the right wood filler, caulk or Spackle is essential to getting a good result.
  
  

Fine Sanding

• The fine sanding is the last technique utilized before the finish is applied. It is the final chance you have to perfect the project before sealing it under paint or polyurethane, so be sure to sand in the direction of the grain and use a fine grit paper. This process also involves removing all excess filler prior to coating.
  
  

Applying Multiple Coats of Finish or Paint

• Always apply multiple coats of finish or paint for the best result. Thick coats appear uneven and are prone to peeling. Applying multiple coats creates a durable surface that resists heavy use. You should also sand between the coats to further smooth the product. This also helps prepare the finish so that the successive coats stick properly.