Once the backplate is secured, center and mount the dartboard using the supplied hanger. That is the lateral measurement, measured straight out from the wall on which the dartboard is mounted and taking into account the thickness of the board itself and of the backplate. Each of these methods of measurement should place the line in the same position. These particular measurements provide the standard distance as used in the United States and in most international competitions. Mount the scoreboard so that a player who is marking a score will not interfere with the next player's shot.
Scoreboards are available in chalkboard and dry-erase styles.
If you want to construct your own protective backplate, it's a simple project that requires only a few basic items. Measuring tape Lay out the wood backing, precut to the desired dimensions. Use a utility knife to cut a segment of rolled cork to match the dimensions of the backing. Attach the section of corkboard to the backing with a liberal amount of woodworker's glue spread out evenly across the board. Make certain that the corkboard is lying flat against the wood without bulging or buckling.