Area Rug Size Calculator
Pick a rug size that sits well in a room. This takes the room size and subtracts a gap at each wall, so you can see the rug dimensions before you shop.
- Free
- Works offline after your first visit
- Saves on this device
- No sign-up
- Updated
How it works
Take the room length and subtract two gaps, one for each end. Do the same for the width. The result is a rug that leaves the same space at every wall.
A gap of 18 inches, or 45 centimetres, is a common starting point. Measure the room, not the furniture, since a rug can still sit under the sofa even when it does not reach the walls.
Worked example
In a room 14 ft by 12 ft, with 18 in clear at each wall, the rug is 11 ft by 9 ft.
Questions
What size rug fits under a sofa?
Some people let the front legs of the sofa rest on the rug. Lay out tape on the floor to see how it looks before you decide.
Is 18 inches the right gap?
It is a common starting point, not a rule. Pick the gap that looks balanced to you in the room.
What if the room is not a rectangle?
Measure the longest straight run in each direction, then mark the rug size on the floor with tape to check the fit.
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