Each strip is 3/16" thick, between 1.5 and 3 inches wide and 12 feet long. These are just the ones for the walls. The front and back strips are very similar, but will go vertical, with the design starting from the middle going out. There is also a raised trim in several areas. The door and window is presently under this test lay. I cut out the window today, made it kind of a cloud shape.