How much window screen mesh do I need?

For rectangular screens, multiply the screen width by height and then by the number of screens. Add a cutting allowance when the mesh must be trimmed from a roll.

How much spline do I need for a screen?

A simple estimate uses the screen-frame perimeter multiplied by the number of screens, with an optional allowance for cuts.

Does the calculator optimize a mesh roll layout?

No. It estimates total area and roll length; actual roll efficiency depends on roll width, orientation and cutting layout.

Does screen mesh width equal frame width?

No. The calculator uses the actual cut-mesh dimensions entered for the screen.

Window screen fabrication

Window Screen Mesh Calculator | Mesh Area & Spline

Estimate mesh material and spline length for rectangular window screens. See the finished mesh area, frame perimeter, cutting allowance and practical roll requirement separately.

Screen dimensions

Screen width

Screen height

Number of screens

Mesh cutting allowance (%)

Spline cutting allowance (%)

Mesh roll width

Mesh roll length

Dimension unit

Mesh roll efficiency depends on roll width, screen orientation and the actual cutting pattern. This tool provides an area-based screening quantity plus a simple roll-length estimate.

Enter screen dimensions and quantity.

Screen mesh and spline requirement

Planning mesh area

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—Net mesh area

—Planning area

—Planning spline

—Rolls by area

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Screen mesh calculation method

Mesh area / screen = width × height
Total net mesh = area / screen × screen count
Planning mesh = net area × (1 + mesh allowance ÷ 100)
Spline / screen = 2 × (width + height)
Total spline = spline / screen × screen count × (1 + spline allowance ÷ 100)

Why mesh area and roll length are different

A mesh roll is a rectangular sheet, while screens are individual cut rectangles. A simple area calculation gives the theoretical material, but the actual roll requirement is influenced by nesting and offcuts.

What the roll result means

The displayed roll count is an area-based planning result. It does not perform a full cutting-stock optimization, so a real fabrication shop may need more or less material depending on orientation and reusable offcuts.

Spline is a separate material

Spline follows the screen-frame perimeter rather than the mesh area. Keeping it separate prevents a common procurement mistake in which mesh quantity is calculated correctly but the retaining spline is forgotten.

Worked example

For six screens measuring 750 mm × 1,200 mm:

Area per screen = 0.75 × 1.20 = 0.90 m²
Net mesh = 6 × 0.90 = 5.40 m²
Perimeter = 2 × (0.75 + 1.20) = 3.90 m
Net spline = 6 × 3.90 = 23.40 m

Cutting allowances can then be applied independently to mesh and spline.

Frequently Asked Questions

Does the calculator include spline?

Yes, separately from mesh.

Can I use a different mesh roll width?

Yes.

Does it optimize the roll cutting pattern?

No. The roll result is an area-based planning estimate.

Can different screen sizes be combined?

This page models identical screens. Different sizes require separate scenarios.