Room fit
Give the tool your room and what is going in it. It returns the footprints from this range that work, drawn inside your room at scale, and says plainly which ones do not.
Fit it to your room
Assumes a rectangular room, the rug roughly centred, and a border of at least 10 inches of bare floor on open sides. Measure the clear floor at floor level, and to the furthest point an inward opening door reaches.
What the tool is doing
Three constraints decide whether a rug fits a room, and all three are arithmetic rather than taste.
The border. A rug wants bare floor around it on the sides that are open to the room. Somewhere between 8 and 24 inches reads as deliberate. Less than that and the rug looks like failed wall to wall carpet; much more and it looks marooned. The tool treats 10 inches as the minimum border and 24 as the point past which you should consider the next size up.
The furniture. Different layouts need the rug to reach different distances. A dining table needs the rug to extend far enough past the table edge that a chair pulled out still has its back legs on the rug, which is about 24 inches on every side. A bed needs the rug to reach roughly 18 to 24 inches out from the sides you walk on. A seating group needs the front legs of every seat to land on it.
The room itself. Doors that swing inward, radiators, and floor vents all take a bite out of the usable rectangle. The tool asks only for the clear floor area, so measure to the furthest point a door reaches, not to the wall behind it.
How to measure so the answer is right
Measure the clear floor, wall to wall, at floor level rather than at waist height; skirting boards and pipe boxing make the floor smaller than the room. Take both dimensions twice, at each end of the room, because very few rooms are actually rectangular. Use the smaller of the two numbers.
If a door opens into the room, stand where the door reaches at its fullest swing and measure from there. A rug edge under a swinging door is the most common reason a correctly sized rug has to go back.
Where the tool stops
It works in rectangles. An L shaped room, an open plan space with two zones, or a room with a chimney breast eating one corner will need you to treat each zone as its own rectangle and run the tool twice. It also assumes the rug goes in the middle of the space, which is right for most rooms and wrong for a rug that is meant to define a corner.
Published 2026-07-31. Figures updated 2026-08-21.