Vision Pro D5" Dutch Lap, 12' long. Proven cost-effective siding solution for durable, long-term protection. Vision Pro provides design flexibility and comes in a wood grain finish that retains a freshly painted look. .040 thickness with a 1/2" panel projection provides panel rigidity. 20-pieces of siding per carton, or 2 squares per carton. Georgia Pacific Vision Pro vinyl siding is covered by a limited lifetime transferable warranty.