Net Size From the specification

Length cm

Width cm

Height cm

Border Height at the Bottom cm

A band of solid fabric round the bottom edge, if the specification has one. It replaces netting on the side panels.

Netting & Order From the netting data and the order

Netting Mass per m² g/m²

From the netting maker's specification for the yarn and mesh.

Seam, Hem & Cutting Allowance %

Netting taken up in seams and hems and lost in cutting, from the cutting room's own figures.

Netting Roll Width cm

Nets in the Order nets

Netting per Net, incl. Allowance

— m²

Side panels and roof, plus the seam and cutting allowance

Per Net & per Order

Side Panels (Netting): — m²
Roof Panel: — m²
Netting Area as Made: — m²
Border Fabric per Net: — m²
Netting Mass per Net: — g
Netting for the Order: — m²
Netting Roll Metres for the Order: — m
Netting Mass for the Order: — kg

The net is treated as an open-bottomed box: four side panels the full height, less any solid border, and one roof panel. Hanging loops, the door overlap of some designs and packaging are not netting and are left out; the seam and cutting allowance covers seams, hems and cutting loss together and comes from the cutting room. Netting gsm is the maker's figure for the finished netting; an insecticide treatment or coating is part of it if the gsm was measured after treatment. Roll metres assume every panel is cut from a roll of the width entered with the allowance covering the nesting loss. **This is a material take-off; it does not grade the netting for strength, mesh count or insecticide content, which tender specifications set separately.**

Rectangular Bed Net (Mosquito Net) Netting Area, Mass & Order Quantity — free, with the formula and a worked example, at Textile School.