Furniture

Rug Size Calculator

Recommend rug dimensions from furniture-group size and edge coverage preference.

Furniture fit check

Enter the room and furniture dimensions for Rug Size Calculator

Method for this tool

What the Rug Size Calculator actually calculates

The tool adds twice the border to both group dimensions and multiplies the resulting rug dimensions for area. It assumes a rectangular rug extending equally on all sides. It does not select standard sizes, enforce room-edge gaps, or determine whether front legs, all legs, or dining-chair movement should be covered.

The calculation path

An equal border is added around the furniture group to create the rug target size.

Inputs that can change the answer

Furniture group length: Enter furniture group length in m.
Furniture group width: Enter furniture group width in m.
Rug extension each side: Enter rug extension each side in m.

Checks that stay outside the formula

Choose the next standard size up rather than leaving front furniture legs off unintentionally.

A practical order for entering the data

Measure the outer rectangle of the furniture group you want the rug to cover.
Enter the equal rug extension desired beyond each edge.
Compare the target dimensions with available rug sizes and check the chosen footprint against doors and surrounding floor space.

Project walkthrough: Coordinate a rug, sofa, and coffee table without crowding the room

Project walkthrough: Plan a bedroom from bed size to wardrobes and walkways

Engine check using the prefilled sample

Worked example: furniture group length = 2.4 m, furniture group width = 1.8 m and rug extension each side = 0.3 m. Replace the sample dimensions with the real room and furniture sizes, then check doors, drawers and walking paths on a scaled plan.

Results for these inputs

Target rug length: 3.00 m
Target rug width: 2.40 m
Target rug area: 7.20 m²

Project-specific method

Worked example and purchase checks

The calculator expands the entered furniture-group dimensions by the chosen border on every side. The resulting rectangle is a target rug footprint that can then be compared with standard rug sizes.

Illustrative worked example

A seating group that needs a visible 350 mm rug extension around its rectangular footprint.

Exact inputs for this example

Furniture group length	2.75 m
Furniture group width	2.05 m
Rug extension each side	0.35 m

Target rug length: 3.45 m
Target rug width: 2.75 m
Target rug area: 9.49 m²

How to read the result

Round the target dimensions to a real product size only after deciding which furniture legs should sit on the rug. Tape the candidate size on the floor before purchase.

Assumptions this example makes

The furniture group can be represented by one rectangle.
The same rug extension is wanted on each side.

What this calculator does not prove

It does not choose a retail rug size automatically or judge pattern, pile, door clearance, or furniture leg placement.
Irregular sectionals and angled layouts may need a plan rather than one bounding rectangle.

Furniture group inside rug boundarySketch is explanatory, not to scale.

Mistakes that change this result

Measuring only the sofa and excluding chairs that should sit on the rug.
Forgetting door swing or hearth clearance.
Buying the nearest smaller standard size without taping it out first.