Tooling to 36"

Clark offers a large variety of standard and custom patterns and perforation types. Our state-of-the-art computer controlled presses can produce round, square, oblong, and slot, straight line and staggered hole patterns. We are capable of producing custom patterns to meet the most stringent requirements. Call us today to request a quote on your custom perforation needs.

Size of Perforations

Fraction Decimal Centers or Feed Holes/
sq.inch		 %
open area
1/16
 .062 3/32" staggered 60° 131 40.5
1/16
 .062 1/8" staggered 60° 74 22.5
1/16
.063 7/32" staggered 60°
3470/sq.ft. 7.4
1/16
.063 1/4" diagonal 45° 2592/sq.ft. 5.5

.075 100 staggered 60° 115/sq.ft. 54.3
5/64
.078 .177 diagonal 45° 4608/sq.ft. 1.2
5/64 .078 1/8" staggered 60°
74 35.2
5/64
.078
.250 diagonal 45° 2592/sq.ft. 8.6
1/12
.083 1/8" staggered 60° 74 40.0
3/32
.0937 5/32" staggered 60° 47 32.4
3/32
.0937 3/16" staggered 60° 33 22.8
3/32
.0937 .243 diagonal 45° 2592/sq.ft. 12.4
3/32
.0937 .250 staggered 60° 18 13

.097 1/8" staggered 60° 74 55
3/32
.0937 .486 diagonal 45°
.648/sq.ft 3.1
7/64
.109 7/32" staggered 60°
24 22.4
7/64
.109 3/16" staggered 60° 33 31
1/8" sq. .125 .156 straight 90°
42 66
1/8
.125 3/16" staggered 60° 33 40.5
1/8
.125 7/32" staggered 60° 24 29.4
1/8
.125 1/4" staggered 60° 18-1/2 23
1/8
.125 3/8" staggered 60° 8 9
1/8
.125 .250 diagonal 45° .2592/sq.ft 22
5/32
.156 200 diagonal 45° 48
5/32
.156 3/16" staggered 60° 33 63
5/32
.156 7/32 " staggered 60° 24 45.8
5/32
.156 1/4" staggered 60°
18-1/2 35.3
3/16
.187 1/4" staggered 60° 18-1/2 51
3/16
.187 9/32 " stagge red 60° 14-1/2 40
3/16
 .187 5/16" staggered 60°
11.8 32.4
3/16
.187 3/8" staggered 60° 8.18 23
3/16
.187 1/2" straight 90° 4 11
3/16
.187 1/2" staggered 60° 4.8 13
1/4
.250 5/16" staggered 60° 11.85 58
1/4
.250 3/8" staggered 60° 8.18 40
17/64
.266 5/16" staggered 60° 11.85 65.6
5/16
.312 7/16" staggered 60° 6 46.7
3/8
.375 1/2" staggered 60° 4.6 51
3/8 square
.375 1/2" straight 90° 4 56
25/64
.391 9/16" staggered 60°
4 48
1/2"
.500 11/16" staggered 60° 2.43 44.7
1/2
 .500 15/16" straight 90° optional w/feed
1/2
.500 1" straight 90° optional w/feed
5/8
.625 7/8" staggered 60° 1.5 47
3/4
 .750 15/16" staggered 60°
1.31 58
3/8 x 3/4 oblong
9/16" end staggered
12/64 x 3/4
oblong
3/8" side staggered

 

Clark Perforating Company Inc.
15875 Allen Road, P.O. Box 179  • Milan, MI 48160
Ph: (734) 439-1170 • (800) 521-6784 • Fax: (734) 439-2791

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