Drywall Over Paneling
DEAR TIM: My wife and I bought a 35-year old home that has thin wood paneling in several rooms. We don't like the paneling and want to drywall the rooms, but the paneling is so much thinner than regular drywall. If I install drywall, it will stick out past the door and window jambs. What can we do to solve this problem? To add insult to injury, the height from the floor to the ceiling is 8 feet 8 inches. Should we cut 10 foot long pieces to fit and install them vertically? Jeremy S., Green Bay, WI
DEAR JEREMY: I'll bet you were perplexed when you pulled off that first piece of paneling to see how thin it was. I remember that happening to me many years ago. The great news is that you have several options and I urge you to stop removing paneling immediately until you test one of my ideas.
As crazy as this sounds I want you to clean one wall of the paneling with soap and water and rinse it with clear water. Be sure the paneling is free of any wax or polish. Use an oil-based primer and paint the paneling. The paint can label will tell you how soon you can apply the finish coat of paint. Follow those directions. I then want you to move some of the furniture up to this wall and hang one or two pictures. You may be shocked at how good the wall actually looks. The vertical lines in the paneling can add character and depth to the otherwise flat surface you will get when you drywall.
If the vertical lines in the paneling bother you or your wife, you can also fill them with spackling compound. It may take several attempts to get the cracks filled so they are perfectly even with the paneling, but it is far less time than you will spend installing and finishing the new drywall. If you do this method, you must prime the paneling with a special primer/sealer that will take care of both the texture difference between the smooth paneling and coarse spackling and the vast porosity differences between the two materials. If you do not use this special primer/sealer, you may see the vertical lines even after the finish paint is applied.
If you and your wife are stuck on drywall, then you need to choose the thickness you want and make adjustments to the jambs at each door and window after the drywall is installed. I would use drywall that is at least one-half inch thick and would seriously consider using 5/8 inch drywall on walls and ceilings where I want sound transmission to be minimal. Thicker drywall helps soundproof rooms.
There is another distinct advantage to using one-half or 5/8 inch drywall. Both of these sizes are commonly available in stretch boards that are 54 inches wide instead of the normal 48 inch width. These wider sheets will allow you to install the drywall horizontally since your ceiling is higher than 8 feet. Using the wider sized drywall allows you to have one continuous tapered seam all the way around the room. There will be no need for the small troublesome ripper strip that would have been only 7 or 8 inches wide.
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Once the drywall is installed, you will need to add small pieces of finish lumber at all window and door jambs. White pine, poplar or other fine-grained lumber can be used with great success to make these small extension jambs. Try to make sure the added lumber sticks about 1/32nd of an inch past the finished surface of the drywall. This very slight offset will help you as you start to reinstall the exiting or new woodwork around each window and door.
You also need to be very observant around all electrical boxes. The electrical code is very specific about the distance between the edge of electrical boxes and the finished wall surface. The safest approach is to have the front edge of the electrical box flush with the finished surface of the wall. But the code understands this can be tough to achieve and typically the maximum distance the box edge can be away from the finished wall is only 1/4 inch. But check with your local code authorities for the exact distance. If you plan to exceed this distance, you must either move the boxes so they comply with the code or you must add code-compliant extension rings. This is a very small detail, but an extremely important one.
The extension jambs can cause small headaches around doors that pivot on traditional hinges. When a standard swing door is hung properly, the hinge is set so the door can swing back on itself and open a full 180 degrees. But if you start to bring the finished wall surface out from the pivot point, the door starts to hit the wall before it opens 180 degrees. Usually you have to have the wall sticking out from the pivot point more than one-half inch for this to be a big problem.
As for painting paneling, you would be shocked how well it can look. A close friend of mine did this in her study and the look was stunning. The paneling in this room actually had a hand-hewn texture in addition to the vertical lines. Once the flat paint was applied to the paneling, the wall surface look much better than adjacent rooms that had smooth plaster. I was amazed at how nice the painted paneling looked.