Physically, finishers must be able to: Climb and maintain balance on scaffolds and ladders; reach for, handle, and manipulate objects and materials; lift and carry objects weighing up to 50 pounds; stoop, kneel, crouch, and crawl. Finishers install and finish metal, plastic, and aluminum trims, apply the proper number of coats of compound per specified level of finish, and sand areas after each coat.