1/2 x 1/2 19 Gauge Wire Mesh Rolls GAW 100 Ft. [WA 1180 - 1182] : Critter-Cages
Everbilt 1/2 in. Mesh x 3 ft. x 5 ft. 19-Gauge Galvanized Steel Hardware Cloth 308222EB - The Home Depot
Fencer Wire 19 Gauge Hot-Dipped Galvanized Hardware Cloth with Mesh Size 1/2" x 1/2" for Chicken Coop/Run/Cage/Pen/Vegetables Garden and Home Improvement Project (a. 2 ft. x 5 ft.) - Bright Galvanized Hardware