How this rug size fit calculator works
The border is subtracted twice from each room dimension to give the largest centered rectangular rug that preserves that exposed-floor margin.
How to use it
- Room length. Enter the value in ft.
- Room width. Enter the value in ft.
- Desired exposed floor border. Enter the value in in.
- Request the result. Add your email, then select “Email & show my result.”
What to do with the number
Furniture layouts often dictate a smaller or differently proportioned rug than the room maximum. Use this as a ceiling on rug size, then compare common rug dimensions and furniture-leg placement.
Planning estimate
Use this result as a starting point, not a guarantee. Product specifications, site conditions, manufacturer guidance, local codes, taxes, labor, tolerances, and rounding can change the real requirement or cost.