This is our most popular and most cost-effective shape. The closest alternative to this is the Arc shape (below) with an overhang. A Rectangle becomes and Arc shape if there are 2 or more corners with a 3" or greater radius. The rectangle shape has clean lines and economizes all available space. Tops that are less than 1.5" thick with 10" of overhang or greater must have support rods. Tops that are greater than 1.5" thick with 12" of overhang or greater must have support rods. If your rectangle top has 3" or greater rounded edges on the corners (e.g., "dog ears"), please use the Arc shape for your estimate.