Level Five Finish

This when the level 4 finish is complete and then the finishers apply 1-2 skim coats over the entire surface of the drywall. It is good for high light areas, and areas where critical lighting or shiny paint finishes are called for. Only about 5% of drywall is finished to a level 5 finish. It is considered premium.

Source: Jason Lebeau a 24 year drywall industry veteran.