Long pieces of plywood, solid surfacing, or MDF cover walls quickly, with few or no gaps. Designs routed into thick sheets of MDF (see inset) are deep and convincing; thinner sheets yield shallower and less realistic details. A.
Raised-panel MDF: 5/8" thick x 36" high x 12' long, about $16.75 per sq. ft. with cap, IntriGB.
Beadboard solid surfacing: ¼
" thick x 36" high x 8' long, starting at $39 per sq. ft., Swan Corp.C.
Beadboard MDF: ¼
" thick x 48" high x 8' long, starting at 65 cents per sq. ft., States Industries