Space Planning
Rug Size Finder
Enter your room dimensions and furniture layout to get the ideal standard rug size - with an exact bare-floor border and an instant fit check for the popular 8×10 and 9×12 rugs.
Recommended rug
8 × 10 ft
The largest standard rug that keeps a balanced border.
- Bare floor - long walls
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- Bare floor - short walls
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- Rug coverage
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Enter your room and press calculate.
Popular size fit check
- 8 × 10 ft
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- 9 × 12 ft
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How the rug size finder works
A well-sized rug anchors the furniture and frames the room with an even margin of exposed floor. Designers treat that margin like matting around a photograph: too little and the room feels cramped and carpeted; too much and the rug floats like a bath mat. This calculator finds the largest standard rug (the sizes you can actually buy off the shelf) that preserves a balanced border on all four sides.
The border rule we enforce
We target 12–18 inches of bare floor between the rug and each wall, and treat 8 inches as the hard minimum. From your room dimensions we subtract twice the target border, then step down to the nearest stocked rug size that still fits. Your chosen furniture layout nudges the target: all legs on wants the largest rug, front legs on sits in the middle, and floating allows a smaller rug that mainly frames the coffee table.
Standard rug sizes we check
3×5, 4×6, 5×8, 6×9, 8×10, 9×12, 10×14 and 12×15 feet. The rug is always oriented so its long side runs along the room's long wall. If your room is very narrow, the tool will flag that a runner or a custom size may serve better.
Frequently asked questions
What size rug do most living rooms need?
Most standard living rooms (about 12 × 15 ft to 14 × 18 ft) look best with an 8 × 10 ft or 9 × 12 ft rug. The goal is a balanced band of bare floor - ideally 12–18 inches - framing the rug on all sides. This tool picks the largest standard size that keeps that border.
Should all furniture legs sit on the rug?
There are three accepted layouts. All legs on feels grounded and needs the largest rug. Front legs on is the most common and forgiving. Floating (only a coffee table on the rug) suits small rooms. Choose your layout above and the recommended size adjusts accordingly.
How much bare floor should show around a rug?
Aim for an even 12–18 inches of exposed floor between the rug edge and the walls. Never go below 8 inches - a rug that nearly touches the walls reads like wall-to-wall carpet. More than about 24 inches can make the rug look undersized for the room.
Is an 8×10 or a 9×12 rug bigger?
A 9 × 12 ft rug is larger - it covers 108 sq ft versus 80 sq ft for an 8 × 10. Step up to the 9 × 12 when your room can keep at least an 8-inch border on all sides; the fit check above tells you instantly.
Do you store the room dimensions I enter?
No. Every calculation runs entirely in your browser with plain JavaScript. Nothing you type is sent to a server or saved.