PERFORATION PATTERN LIBRARY Round Hole Staggered Pitch Round Hole Square Pitch Square Hole Staggered Pitch Square Hole Square Grid Slotted Grid Hexagonal Pitch Designer Series Round Hole Staggered Pitch RO4SP-40 RO6SP-40 RO8SP-48 RO12SP-51 RO16SP-46 RO5SP-35 RO6SP-51 RO10SP-35 RO16SP-34 RO21SP-51 RO5SP-46 RO8SP-26 RO10SP-46 RO16SP-40 RO30SP-44