Rod Builder's Adhesive-Backed Measuring Tape

Remove backing, then apply to any clean, dry and smooth surface. For rules comprised of two or more sections, trim both edges of each end where they butt together. An easy method of doing this is to overlap ends of one another and use a razor knife to cut through both layers. Then remove the excess from underneath to avoid a high spot. Use a one-piece metal rule for a dimensional reference so that an accumulated error doesn't occur.