Screen Mesh - Market Grade/U.S. Standard Comparison Chart

Screen mesh indicates openings/inch, wire diameter differences between Market Grade and U.S. Standard Mesh results in changes in opening size and open area.

Market Grade U.S. Standard
Mesh Mesh (Micron) Mesh (Inch) Mesh (Micron) Mesh (Inch)
Size Opening Opening Opening Opening
2 11100 .437 N/A N/A
3 7087 .279 6730 0.265
4 5156 .203 4750 .187
5 4039 .059 4000 .157
6 3353 .132 3350 .132
8 2464 .097 2360 .0929
10 1905 .075 2000 .0787
11 1854 .073 N/A N/A
12 1524 .060 1700 .0669
14 1295 .051 1400 .0551
16 1130 .0445 1180 .0456
18 980 .0386 1000 .0394
20 864 .0340 850 .0335
24 703 .0277 N/A N/A
25 710 .0280 710 .0280
30 516 .0203 600 .0232
35 N/A N/A 500 .0197
40 381 .0150 425 .0167
45 N/A N/A 355 .0140
50 279 .0110 300 .0118
60 234 .0092 250 .0098
80 179 .0070 180 .0070
100 140 .0055 150 .0059
120 117 .0046 125 .0049
140 N/A N/A 105 .0042
150 104 .0041 N/A N/A
160 99 .0039 N/A N/A
170 N/A N/A 90 .0035
200 74 .0029 75 .0030
230 N/A N/A 63 .0025
250 61 .0024 N/A N/A
325 44 .0017 45 .0018
400 38 .0015 38 .0015
450 N/A N/A 32 .0013
500 25 .0010 25 .0010
635 20 .0008 20 .0008