This unique, 20-sided round house in Chatham, N.H., features energy-saving amenities, stunning views, and a wood interior.

Real knotty pine wood paneling from the 1950s is fabulous ... to brighten the space while maintaining the texture of the tongue-and-groove boards. Sometimes wood paneling can’t be painted.

Often, shiplap planks have a “V” groove, a gentle bevel along the edges, giving the appearance of a slight valley between planks in the finished shiplap wall paneling. Tongue and groove planks ...

Natural details permeate today's most popular interior styles, giving tongue ... the wall to lock the boards into the previous row. In that case, you can remove the bottom lip of the groove ...

In the 1930s, knotty pine tongue-in-groove and beadboard paneling began covering walls in dens and sun rooms. In the 1970s and early 1980s, paper veneer plywood paneling-large 4-by-8-foot sheets ...

pine rejected as too knotty at another site was trucked home and transformed into tongue-and-groove boards so the walls of Wild Oaks weren’t sullied by nails. Legend has it the projecting piece ...