Carefully woven from fine wire with a square weave, its aperture size is the inside dimension of one side of the opening. Although woven to as exact a micron size as possible, maintaining extremely accurate apertures is difficult with metal wire, however our stainless steel cloth holds actual woven sizes well. Smaller sizes are more flexible than larger. Priced and sold by the square foot. If more than one yard is ordered, the mesh is typically in one continuous piece. The rolls we cut our mesh from are usually 36” wide, if a large amount is needed, please call for pricing and availability.