What is Welded Wire Reinforcement

As defined by ASTM A1064, welded wire reinforcement is a material composed of cold-worked steel wire with indented or raised rib deformations. The wire itself is colddrawn or cold-rolled from hot-rolled steel rod. The cold-working process includes reducing, deforming, and straightening. With final wire diameters produced, the wires are then automatically assembled and machine-welded to form mat-type structural reinforcement for concrete.

Welded wire reinforcement, historically called wire fabric, is produced in sheets and rolls, and is mainly used by the precast and cast-in-place concrete industries. Compared to standard methods of placing loose, individual pieces of steel reinforcing, welded wire reinforcement is an efficient, economical, and viable option for concrete reinforcement.