Layout FoundryMaterial planning tools

Wallpaper planning

Estimate wallpaper drops and rolls

Copy the roll width, roll length, pattern repeat and match type from the product label, then enter up to four walls. The planner shows how trimming and matching change the drop length before it estimates whole rolls.

Use the product label and measured walls

Enter the roll and wall details

The planner turns each wall into complete strips, rounds their length for trimming and a straight pattern repeat, then checks how many strips fit on a roll.

1. Choose units
2. Copy the roll details
Pattern match from the product label
3. Add each wall
Wall 1
Full-height openings (optional)

Add an opening only when it runs from ceiling to floor. A normal door or window still needs wallpaper above or below, so it does not reduce this estimate.

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View the updated estimate

Wallpaper estimate updated: 7 drops and 2 rolls.

Current estimate

Plan for 2 rolls

The entered walls need 7 complete strips. Each strip is rounded for the combined trim allowance and any straight pattern repeat before the roll count is calculated.

Estimated rolls2Whole rolls
Required strips7After qualifying full-height openings

Recorded plan details

Layout Foundry wallpaper estimate
Roll: 530 mm wide × 10,000 mm long
Combined trim allowance per drop: 100 mm
Pattern: No match or random match
Pattern repeat: 0 mm
Walls:
- Wall 1: 3,600 mm wide × 2,400 mm high
  - Openings: none
Estimated rolls: 2
Required drops: 7
Adjusted drop length: 2,500 mm
Drops per full roll: 4
Unused roll length after full drops: 0 mm
Opening treatment: No openings have been deducted from the estimate.
Rounding: wall widths round up to complete strips, and straight-match drop lengths round up to the next complete repeat.
Check the product label, batch and hanging instructions before ordering.

How this estimate was calculated
Adjusted drop2,500 mm
Drops per roll4
Before opening deductions7
Tallest wall
2,400 mm
Remainder after the maximum complete strips on a full roll
0 mm

No openings have been deducted from the estimate.

Wallpaper drop sequenceRequired drops are shown in gold. Grey crossed drops are completely avoided by a qualifying opening.Wall 1Wall 1, drop 1: required1Wall 1, drop 2: required2Wall 1, drop 3: required3Wall 1, drop 4: required4Wall 1, drop 5: required5Wall 1, drop 6: required6Wall 1, drop 7: required7

Gold strips are included in the estimate. Crossed grey strips are not required because a full-height opening covers their complete width.

Read all calculation assumptions
  • Every wall is cut to the tallest entered wall height so drops remain interchangeable.
  • Trim allowance is the combined extra length added once to every drop.
  • No pattern repeat has been allowed for.
  • The drop grid begins at each wall's left edge. Only a ceiling-to-floor opening covering a complete aligned roll-width column saves a drop.
  • Partial-height doors and windows still need material above or below, so their area is not subtracted.
  • No spare roll is added for damage, dye-lot matching, unusual set-out or installer preference.