Mesh width w is the clearance between two adjacent warp or weft wires measured in the projected plane.

Wire diameter d is the diameter of the woven wire measured before weaving.

Spacing p p is the clearance of the middle line of two adjacent wires or the sum of mesh width w and wire diameter d.

Warp: total number of wires running parallel to the selvedges.

Weft: total number of wires running at right angles to the warp wires.

Mesh number per length unit n is the number of meshes counted consecutively in a row in a unit of length. The unit of length can be mm, decimetres or inches, or any other unit. The number of meshes in a length of 25.4 mm is referred to as the mesh (mesh table).

Mesh=	Number of meshes per inch = 25.4 : p
n/cm=	Number of meshes per cm = 10 : p
n/cm2=	Number of meshes per cm2 = (10 : p)2

Open screen area A₀: proportion of screen openings in the total woven area as a percentage.
A₀ = 100 (w / (w+d))²
The A₀ results from the ratio of the squares of mesh width w and spacing t, rounded to a full percentage value

Texture or type of weave is the way in which the warp and weft wires are linked.

Further information on