Should a Rug Go Under a Sofa?

November 3, 2026

Short answer: yes, the rug should go under the sofa — specifically, the front 15–20 cm of it. That anchors the seating group and stops the rug from looking like a bath mat that drifted into the middle of the room. The one exception is a very small room where the rug defines a walking path rather than a seating zone.

3-Seater Chenille Sofa, Deep Seat, 188 cm, Cream — view product

Shop the pieces in this guide

2 Seater Sofa, Linen-Look Fabric, Wooden Legs, 117 cm, Grey — view product

3-Seater Corduroy Sofa, Compressed, 236 cm, Green — view product

There are three accepted positions and only one of them looks deliberate. Front legs on the rug reads as anchored. All legs on reads as generous, if you have the rug for it. No legs on — rug floating in front of the sofa — reads as an afterthought, unless the room is so small that the sofa has to sit against the wall.

The three layouts

Layout	How much rug under the sofa	Rug size for a 210 cm three-seater	Best for
Front legs on	15–20 cm	200 × 290 cm	Most living rooms
Fully under	All legs, plus 20 cm behind	250 × 350 cm	Large rooms, open plan
In front only	0 cm, 10 cm gap	160 × 230 cm	Small rooms, sofa against wall

Size maths that hold up

Work from the sofa, not the room. Rug width should be at least the sofa width plus 30 cm on each side, so the rug reads as a base rather than a strip. Depth should cover the coffee table plus 30 cm in front of it.

Sofa	Minimum rug	Comfortable rug
2-seater (140–160 cm)	160 × 230 cm	200 × 290 cm
3-seater (190–220 cm)	200 × 290 cm	250 × 350 cm
Corner sofa (260 cm+)	250 × 350 cm	300 × 400 cm
Armchair pair	160 × 230 cm	200 × 300 cm

Why 15–20 cm and not 10

Under 10 cm, the rug edge hides under the sofa and the effect disappears — you paid for 30 cm of rug you cannot see. Over 25 cm and the sofa starts to look parked on the rug rather than placed on it. Fifteen to twenty centimetres is also the depth at which the sofa's front feet actually sit on the pile instead of sliding off the edge every time someone flops down.

One structural detail: if the sofa has slim metal legs, check they are not sharp. A 15 kg leg point on a woven rug will eventually cut through to the floor.

Rug under a sofa on a carpet

Layering a rug on carpet works, but only with a thin rug and a proper anti-slip pad. On medium-pile carpet, a 5 mm rug will ripple within a week. Flatweave, jute or a low-pile wool rug behaves far better, and the contrast in texture is what makes the layering look intentional rather than accidental.

The corner cases

Open-plan rooms: the rug defines the seating zone. Let it sit fully under the sofa and the chairs, but keep 30 cm of bare floor between the rug edge and any dining table.
Rooms under 12 m²: front legs on, and accept a smaller rug. A too-large rug in a small room reads as wall-to-wall carpet that failed.
Radiators and doors: leave 8–10 mm clearance under any door that swings over the rug, or shave the door.
Underfloor heating: keep total thickness under 12 mm and use a pad rated for it, otherwise you are insulating the heat away.

Getting the position right the first time

Put the rug down before the furniture, then slide the sofa back until 15 cm of rug is under the front feet. Stand at the doorway and check that the rug's front edge is parallel to the sofa — a 2° skew is invisible up close and glaring from across the room. If the room has a focal point such as a fireplace, centre the rug on it, not on the sofa.