How to calculate quantity with packages and a reserve
When buying tiles, wallpaper or flooring, you need to account not only for the net area but also for a cutting reserve, and order a whole number of packages. ArchiBoard recalculates the quantity with these parameters so you don't order too little or overpay for extra.
- 1
Open the item card
Choose the item in the estimate (tiles, wallpaper, flooring) and open its card for editing.
- 2
Enter the net quantity
Enter the area or quantity without a reserve — for example, the actual m² of floor or walls.
- 3
Set the reserve percentage
Enter the cutting reserve as a percentage (usually 5–10% for tiles, up to 15% for patterned wallpaper).
- 4
Enter the package size
Fill in «Pieces per package» or m² per package, depending on how the material is sold.
- 5
Check the final quantity
The «Qty» column shows the final figure — how many packages to buy. Under the price you will see what it refers to (per package or per piece), and below that the price per m².
Good to know
- The calculator can suggest the floor and wall area from the room area.
- The main figure in the «Qty» column is already rounded to whole packages.
- The reserve is applied automatically — no need to calculate it by hand.
Related guides
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