Measure the width, length and depth of the closet-door opening. Subtract 1/4 inch from each measurement so the door will swing open easily and won’t catch on the frame.
Order the cut lumber from your lumberyard. Purchase a lightweight soft wood, such as pine, instead of a solid hardwood so the door won’t be too heavy. Hold the door up to the opening when you get home to be sure it’s the right size.
Sand the door to a smooth finish with the sander and 200-grit sandpaper. Wipe the door off with a cloth to remove all the sawdust.
Prime and paint the closet door with the paint brush. Allow the door to dry for four to five hours after you prime it before you paint it. You also can paint the door with a wood finish for a natural look. Allow the finish to dry.
Hold the door up to the frame and mark where each hinge needs to be placed, usually one near the top of the door and one near the bottom. Place the hinges over the side of the door and secure them in place with the screws. Hold the door up to the frame and attach the hinges to the frame with screws.