The mesh count is the number of wires or openings per linear inch (25.4 mm), counted from the center of any wire to a point exactly 1 in. (25.4 mm) distant, including the fractional distance between either thereof.
mesh count tolerance
| mesh | Warp | Shute |
| Coarser than 30mesh,incl | ±2% | ±5% |
| Over 30 to 200mesh,incl | ±2% | ±4% |
| Finer than 200mesh | ±3% | ±4% |
