Wainscot paneling is usually installed over a flat wall surface to give character and a finished look to a room. They are very commonly used as the lower section of a wall under the chair rail molding. Wainscoting can be installed in any room of a home but is generally found in dens, family rooms, dining rooms, and bathrooms. When there is a crack in the wainscoting it is an easy process to repair it.
Step 1 - Clean Crack in Paneling
Using the utility knife clean out the crack that is in the wainscoting. If it is a large enough crack you can use a chisel. However, these cracks in the paneling are normally small stress cracks. Clean out any splinters or loose pieces of wood.
Step 2 - Apply Wood Putty
Place a little wood putty between your fingers or a putty knife and work it firmly into the crack pushing as much of it as you can inside the crack. Make sure that the putty fills the crack completely. Use the putty knife to spread it out evenly over the surface and feather it into the surrounding wood as much as possible.
Step 3 - Sand Putty Smooth
Allow the wood putty to dry until it has hardened enough to be able to be sanded without coming back out of the opening. Sand it smooth with 120 or 160 grit paper.