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Industrial PERFORATION GUIDE

IPA Standard Perforations

The enormous number of perforating patterns possible with round holes, squares, slots, and other special perforations makes it impractical to list every combination. The following IPA numbered perforations listed and illustrated here are common and considered Standard. The die banks of the IPA have thousands of additional patterns. For specific requirements not met with these standard patterns, Contact Fluidtrol.
Click on an IPA Number below to see more detail.

 

IPA Numbers Perforations Centers Holes/Sq. In. Open Area Line
100 .020" --- 625 20% Staggered
101 .023" --- 576 24% Straight
102 .027" --- 400 23% Straight
103 .032" --- 324 26% Straight
104 .040" --- 225 30% Straight
105 .045" --- 224 37% Straight
106 1/16" 1/8" --- 23% Staggered
107 5/64" 7/64" --- 41% Staggered
108 5/64" 1/8" --- 36% Staggered
109 3/32" 5/32" --- 32% Staggered
110 3/32" 3/16" --- 23% Staggered
111 3/32" 1/4" --- 12% Staggered
112 1/10" 5/32" --- 36% Staggered
113 1/8" 3/16" --- 40% Staggered
114 1/8" 7/32" --- 29% Staggered
115 1/8" 1/4" --- 23% Staggered
116 5/32" 7/32" --- 46% Staggered
117 5/32" 1/4" --- 36% Staggered
118 3/16" 1/4" --- 51% Staggered
119 3/16" 5/16" --- 33% Staggered
120 1/4" 5/16" --- 58% Staggered
121 1/4" 3/8" --- 40% Staggered
122 1/4" 7/16" --- 30% Staggered
123 1/4" 1/2" --- 23% Staggered
124 3/8" 1/2" --- 51% Staggered
125 3/8" 9/16" --- 40% Staggered
126 3/8" 5/8" --- 33% Staggered
127 7/16" 5/8" --- 45% Staggered
128 1/2" 11/16" --- 47% Staggered
129 9/16" 3/4" --- 51% Staggered
130 5/8" 13/16" --- 53% Staggered
131 3/4" 1" --- 51% Staggered

 

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