Wallpaper Preparationjoint compound
putty knife
sandpaper
Door Casings
casing material
screws
wood filler
wood glue
tape measure
miter saw
drill
drill bits
screw gun
carpenters square
corner clamp
Wallpaper Preparation
1. Using a pre-mixed joint compound and your putty knife, start at the top of the groove and apply a thin, even layer of compound all the way down the length of the wall.
2. Go over this application a second time to ensure an even application and remove any excess compound.
3. Allow the mud to dry for a few hours.
Door Casings
1. The first thing you need to do is make sure your doorjamb is square by holding a carpenter's square in the two upper corners. If the corners are perfect right angles (90 degrees), you will be able to cut even 45-degree miters to assemble your casing. If they are not right angles, you will need to cut your miters slightly more or slightly less than 45-degrees to make them fit the doorjamb.
2. Measure the height from the floor to the lower edge of the top piece of the jamb on both the left and right sides to make sure the height is uniform. If one side is higher than the other, you will need to cut that side longer than the other. Make note of your measurements. Now measure the width of the doorjamb from the inner edges. Make note of your width measurement.
3. Next, determine how much of the edge of the doorjamb you want to show (or reveal). Usually about 1/4" of the doorjamb is exposed all the way around. The other 1/2" of the jamb is covered by the door casing. If you decide to reveal 1/4" all the way around, add 1/2" to your width measurement and 1/4" to the height measurement of each side.
4. The miter cuts are trickier than the straight cuts. Using a miter saw, cut the top piece first using the calculated dimensions from step 3. Then cut the corresponding miters on the side pieces. Remember, if you do not have 90 degree corners, you will need to cut the miters slightly greater or less than 45 degrees. Make sure the mitered corners fit together tightly.
5. Measure and mark the left and right pieces to length. Use the measurements that you calculated in step 3. Make the straight cuts. To confirm your measurements and miter cuts, hold the casing pieces in position. Make sure the amount of doorjamb that is visible is uniform all the way around and your corners are tight.
6. Now, assemble the corners before the final installation. Lay the pieces flat on ground. Glue both mitered surfaces on one of corners. Use a corner clamp to hold the 2 pieces together, making sure your miters are lined up correctly and front surfaces of both pieces are flush. Let the glue set before proceeding.
From the top casing piece, drill two pilot holes through the top edge and into the side piece. Be careful that you do not drill through the face of the casing. Use long (3-1/2" x 6), flathead wood screws to hold the two pieces tightly together. Remove the clamp. Repeat this process on the other corner.
7. Take your assembled casing and position it over the doorjamb. Make sure your reveal is even all the way around the doorjamb. Using finishing nails, tack the upper corners to the doorjamb. Do not drive the nails all the way in, just in case you need to reposition the casing. Nail the top casing piece to the doorjamb. Starting in the upper corners and working your way down, nail the side pieces of the casing to the doorjamb.
8. To hold the outer part of the new casing in place, nail the outer edge to the surrounding stud frame (through the drywall). Now retrace your steps and use a nail set to sink each nail about 1/16" below the casing surface. Use wood filler to fill in the nail head holes.
9. Once the casing is installed, you may find that irregularities in your doorjamb or walls have prevented the casing from sitting tightly against these surfaces. You can remedy this by applying a thin bead of latex caulk to fill in the gaps. Dip your finger in warm soapy water and run it over the caulk to smooth it out.
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