dallen, next time you have something wooden that warps, set it outside in the sun on the lawn with the concave side down, and check it every half hour or so until it is straight. The sun dries out one side and the earth adds moisture to the other. This cups it back toward the sun side. If you leave it too long, just flip it over again.
Get a paint coating on it after to lock in the corrected moisture content. Or if acceptable use a coat of paraffin wax -- one of the most moisture resistant coatings known. Another highly moisture resistant coating is polystyrene -- dissolve styrofoam in acetone to get some.
Get a paint coating on it after to lock in the corrected moisture content. Or if acceptable use a coat of paraffin wax -- one of the most moisture resistant coatings known. Another highly moisture resistant coating is polystyrene -- dissolve styrofoam in acetone to get some.