Mesh Count

Per Inch

Mesh10

Wire Diameter 0.3mm

Aperture 2.24mm

Mesh20

Wire Diameter 0.3mm

Aperture 1mm

Mesh30

Wire Diameter 0.19mm

Aperture 0.56mm

Mesh40

Wire Diameter 0.19mm

Aperture 0.45mm

Mesh50

Wire Diameter 0.15mm

Aperture 0.35mm

Wire Diameter 0.15mm

Aperture 0.28mm

Mesh80

Wire Diameter 0.12mm

Aperture 0.2mm

Mesh100

Wire Diameter 0.1mm

Aperture 0.15mm

Mesh120

Wire Diameter 0.09mm

Aperture 0.12mm

Mesh150

Wire Diameter 0.06mm

Aperture 0.11mm

Mesh300

Wire Diameter 0.04mm

Aperture 0.04mm

Plain Square Woven Wire

The most common wire weave, with the same diameter warp and shute wires, woven in a simple over and under pattern. This style produces screens with the same mesh count in both directions.

Twill Square Woven Wire

Each shute wire typically passes over two warp wires and under two producing square openings. Twill weave can be made from larger-diameter wires than would be possible in plain square weave, to obtain greater strength, density, or corrosion resistance.

Plain Dutch Woven Wire

This weave style is woven in a plain, over and under pattern. The plain dutch woven wire style is a very tight weave because a thinner, smaller diameter shute wire is used. Dutch weaves do not have a straight-through, clear opening like most plain weave styles. Instead, the weave style creates a tortuous path through which very fine filtration and particle retention can be achieved. Dutch weaves may be specified by a “mesh count” or an “absolute filter rating.”

Dutch Twill Weave Wire

This weave style is similar to Plain Dutch, except it is woven in Twill style. Each wire passes over two wires then under two wires, still utilizing a smaller-diameter shute wire, allowing an even tighter weave and even finer filtration than the Plain Dutch weave.

Reverse Dutch Weave Wire

This weave style is the same weave as Plain Dutch, except the warp and shute wires are reversed. The larger shute wires are woven closer together than would usually be seen in a Plain Dutch weave.

Rectangular or “Off-Count” Weave Wire

This is a Plain weave wire cloth, woven in an over and under pattern with a different number of wires in the warp and shute direction, which yields a rectangular opening wire cloth. Rectangular openings are often used in sifting and sizing operations to increase product “through” capacity, with minor sacrifices in accuracy. To reduce material costs, off-count wire mesh may be substituted for square wire mesh in some applications that do not require a high level of accuracy. Some wire cloth vendors will substitute off-count wire cloth when certifications are not specified by the manufacturer. For example, a 90 x 100 mesh may be substituted for 100 x 100.

Stranded Weave Wire

Usually woven in the Plain Square style, each warp and shute “wire” is composed of a “bunch” or “group” of small-diameter wires, which are woven into a finished product.