Wallpaper Paste Calculator

Work out wallpaper paste instantly with clear inputs, formula shown and shareable results.

About Wallpaper Paste Calculator

Paste quantity scales with roll count and paper weight: heavy vinyl needs about 30% more than standard paper, and paste-the-wall systems need more again because the whole wall is coated. Sizing an absorbent wall first uses extra diluted paste but greatly improves adhesion and slip.

Formula

Paste quantity

effective rolls = rolls x paper type factor; sachets = ceil(effective rolls / yield per sachet)

Worked example

With the default values below, Wallpaper Paste Calculator returns Paste sachets required of 3. Change any input above and every figure here is recalculated in your browser.

Inputs used

Rolls of wallpaper: 8 rolls
Paper typeone of Standard paper, Heavy vinyl, Lining paper, Paste the wall (non-woven): Standard paper
Rolls covered per sachet: 5 rolls
Absorbent walls needing sizingone of Yes, size first, No, already sealed: Yes, size first

Results

Paste sachets required: 3 sachets
Made-up paste required: 7.20 L
Additional paste for sizing: 2.00 L
Total paste to mix: 9.20 L

Step by step

1Values used
2Paste quantity
3Paste sachets required= 3 sachets
4Made-up paste required= 7.20 L
5Additional paste for sizing= 2.00 L
6Total paste to mix= 9.20 L

Assumptions and limits

The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
Figures are rounded for display to 2 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

What is sizing?

A coat of diluted paste applied to bare or porous plaster. It seals the surface so the paper slides into place instead of grabbing immediately.

Why does paste-the-wall use more?

The adhesive is spread across the whole wall area rather than the back of the paper, so overlap and edge coverage add to the total.