Vision Pro D4″ Dutch lap, 12.6′ long. Proven cost-effective siding solution for durable, long-term protection. Vision Pro provides design flexibility and comes in wood grain finish that retains a freshly painted look. .040 thickness with a 1/2″ panel projection provides panel rigidity. 24-pieces of siding per carton, or 2 squares per carton. Georgia Pacific Vision Pro vinyl siding is covered by a limited lifetime transferable warranty.