Petro Wire & Steel Round Hole PatternsCharts below are of most common sizes. We offer custom fabrication on all our products. Call to order yours! 713.957.2256
| .020" dia .043 ctrs | .023" dia .042 ctrs | .033" dia .055" ctrs | .045" dia .066" ctrs |
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| 20% open area | 22% open area | 23% open area | 28% open area |
| .045" dia .066 ctrs | 1/16 dia 3/32 ctrs | .033" dia .055" ctrs | 3/32" dia 5/32" ctrs |
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| 36% open area | 41% open area | 23% open area | 33% open area |
| .117" dia 5/32" ctrs | 1/8" dia 7/32" ctrs | 5/32" dia 3/16" ctrs | 3/16" dia 3/16"ctrs |
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| 45% open area | 30% open area | 63% open area | 50% open area |
| 3/16"dia 5/16"ctrs | 3/16" dia 3/8" ctrs | 3/16" dia 1/2" ctrs | 1/4" dia 1/4" ctrs |
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| 32% open area | 23% open area | 10% open area | 34% open area |
| 1/4" dia 1/2" ctrs | 3/8" dia 9/16" ctrs | 5/8" dia 7/8" ctrs | 3/4" dia 1" ctrs |
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| 23% open area | 40% open area | 46% open area | 51% open area |