Watt and Wall

Home decoration calculator

Rug Size Calculator

Estimate a minimum rug size around a sofa, dining table, or bed, then check whether that footprint fits within your room.

Your measurements

Estimate a rug around your furniture

Measure the furniture group first, then the clear room around it. Adjust the extension until the calculated rug leaves the floor border and walking space you want.

A unit change converts the room, furniture, and rug-extension measurements without changing the layout choice.

Loads an editable placement example; check it against your furniture arrangement.

Room and reference furniture

Usable room length.

Usable room width.

Sofa, table, or bed length.

Sofa group, table, or bed width.

Editable placement allowance.

Live estimate

Recommended rug dimensions

Recommended rug: 320 cm (3.2 m) by 240 cm (2.4 m); fits the room.

Minimum planning size

320 cm (3.2 m) × 240 cm (2.4 m)

Fits inside room
Yes
Room orientation
Standard
Exposed floor at length ends
90 cm (0.9 m)
Exposed floor at width sides
80 cm (0.8 m)

Use this as a minimum planning size. Product sizes vary by market; mark the outline on the floor before ordering.

Placement-based estimate

Rug size formula

The result starts with the furniture group rather than a fixed product size. The editable extension represents the rug visible beyond the sofa, dining table and pulled-out chairs, or bed.

Rug dimension = furniture dimension + (extension × 2)

Choose by layout, not label

Dining layouts need enough rug beyond the table for chairs to move without catching an edge. Bedroom and living-room choices depend on which furniture legs should sit on the rug. Use painter's tape to test the calculated outline.

Read the rug placement guide.

Worked room-fit decision

Suppose a seating group measures 200 × 100 cm and the clear room is 350 × 280 cm. Changing only the extension on each side produces different footprints. These are chosen example dimensions, not recommended product sizes.

Extension per sideRug footprintCentered floor borderRoom fit
50 cm300 × 200 cm25 cm at length ends; 40 cm at width sidesFits
70 cm340 × 240 cm5 cm at length ends; 20 cm at width sidesFits on paper; check walking space
80 cm360 × 260 cmExceeds room length by 10 cmDoes not fit

A positive room-fit result only compares rectangles. Even the 70 cm option leaves just 5 cm at each length end if centered, which may be unsuitable near a doorway. Mark the actual product dimensions on the floor and check paths around the seating group.