TRUSS diagonal type reinforcements for concrete blocks are designed with 2 parallel longitudinal rods to which diagonal crosspieces are welded at all contact points. A fabricated truss-type reinforcement designed to be embedded in the horizontal mortar joints of masonry walls. For use in single-wythe walls. REINFORCEMENT #4 TRIANGLE (TRUSS) Cross gauge designation: Standard Diagonal and longitudinal rods: 3.66 mm (9 gauge) Dimensions: 4in x 10ft