1 · Measure the room
intakeWall to wall.
Wall to wall.
Floor to ceiling.
About 1.7 sq m each.
About 1.6 sq m each.
Three if going light over dark.
10–12 on painted walls, 8–10 on bare plaster.
Common sizes are 1, 2.5 and 5.
The ceiling adds length × width.
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2 · The slip
readyMeasuring the walls…
Printable slip — $4 one-time
Free tier: unlimited rooms, forever.
- Printable slip — the quantities on one sheet — estimate: ~6 min saved.
- Saved rooms shelf — up to 10 rooms in this browser — estimate: ~10 min saved.
- Cost comparison — waste per tin size — estimate: ~8 min saved.
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