Petro Wire & Steel Ornamental Perforated Metal
Marietta 45% open 
Grecian 35% open
Standard Octagon 35% openHexagon 1/4" 79% open
Moire 41% open 1/8" x 3/4"Full Cloverleaf 50%
Max-Flow 68% open. Slots, 1/4" x 1-1/2", in rows across width of sheet.
Vertical bars 3/32" wide, with every third bar 3/16"
