Truss design is a prefabricated reinforcement for embedment in the horizontal mortar joints of masonry. Manufactured in 10 foot lengths from wire, it conforms to ASTM A 82 for cold drawn steel wire. It consists of two or more parallel and deformed longitudinal wires welded to a continuous diagonal cross wire at 16" o.c. Out-to-out spacing is approximately 2" less than the nominal thickness of the wall.