Architectural Metal Perforation Patterns
A Whole Lot of Holes
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.125" Dia. X .188" Centers40%Open Area
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.125" Dia. X .219" Centers30%Open Area
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.125" Dia. X .250" Centers23%Open Area
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.125" Dia. X .375" Centers10%Open Area
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.188" Dia. X .313" Centers33%Open Area
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.188" X 1.500" Slot on .375" Centers43%Open Area
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.250" Dia. X .313" Centers58%Open Area
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.250" Dia. X .375" Centers40%Open Area
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.250" Dia. X .438" Centers30%Open Area
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.250" Dia. X .500" Centers23%Open Area
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.250" Dia. X .625" Centers15%Open Area
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.250" Sqr. X .375" Straight Centers44%Open Area