Genius. I got a 4x8 sheet of half-inch plywood cut into thirds at Home Depot to end up with 3 pieces of 32x48" -- a good size to fill the empty wall in the dining room. With one-inch spacing, it gave me 32x48 pixels. I scaled down a world map to that size and posterized it to 5 colors (white + 4 shades of gray).
we went to Lowe's and purchased about 4 sheets of the 4x8 paint-ready utility plywood and had Lowe's cut them into 6 inch strips, length wise. We paid about $3.00 extra to have all the cuts made for us but it was WELL worth it! After we brought them home we quickly sanded down the edges where there were any splinters or rough spots from the cuts. - See more at: http://www.thehouseofsmiths.com/2012/11/diy-wood-planked-walls-tutorial.html#sthash.hem6KcZ6.dpufked Walls Tutorial