A pine door adds a warm and natural feel to a room if it is stained rather than painted. The stain accents the natural beauty of the pine's grain. Staining a pine door is a straightforward procedure that is accomplished in two to three hours, not including drying time. It is recommended that a stain be used that has a built-in varnish. This will eliminate a step in the process, without sacrificing a quality result.
Remove the door from the frame by using a hammer and a flathead screwdriver to remove the hinge pins. The hinge pins connect the part of the hinge on the door to the part that is on the door frame. Pry up on the hinge pins with the screwdriver at an angle and use the hammer to gently tap the bottom of the screwdriver. This will drive the pins up so they can be removed by hand. When all the pins are removed, the door can be removed and carried to a work area.
Set up two saw horses in a well-ventilated room. The saw horses should be parallel to each other and about 1.5 to 2 metres (5 to 6 feet) apart.
Place the door on the saw horses.
Sand one side of the door completely with 100-grit sandpaper until there is only the smooth natural wood grain. Flip the door over and sand the other side. The object of sanding is to remove any paint that may be on the door and smooth out any nicks or gouges.
Tape the door handle and other hardware on the door with painter's tape to protect it from the stain.
Fill a bucket with warm water and wipe down the door with a sponge on both sides to remove sanding dust.
Dip a two-inch paint brush into a stain that contains varnish and scrape off the excess on the rim of the can. Start at the top corner of one side of the door and apply the stain in long even strokes.
When the first side is finished, let it dry according to the directions on the can. Stain the other side. Let the second side dry completely.
Reinstall the door by reversing the process you used to remove it. Remove the painter's tape from the hardware.