Forest Ridge D5″ lap, 12′ long. The ideal choice for homeowners who appreciate the traditional look and warmth of clapboard siding. Forest Ridge has an authentic wood grain finish and deep shadow lines for premium curb appeal. .042″ thickness, combined with a roll-over nail hem and 1/2″ panel projection, delivers premium panel performance on the wall. 20-pieces of siding per carton, or 2 squares per carton. Georgia Pacific Forest Ridge vinyl siding is covered by a limited lifetime transferable warranty.