Arranging a 4 by 5 metre living room

A 4 by 5 metre living room is the comfortable size. It is big enough that you no longer have to choose between a full sofa and a walkway, but not so big that the seating drifts apart into a hotel lobby. The trap at this scale is different from a small room: with 20 square metres to fill, most people push everything against the walls and leave a large dead zone in the middle. The fix is to work in zones and to pull the sofa off the wall. The room above is a real 4 by 5 metre layout you can orbit and open in the editor.

Split the room into two zones

The reason a larger room can feel empty is that it is trying to do one thing across too much floor. Give it two jobs instead. A conversation zone is a sofa and one or two chairs pulled close around a coffee table, tight enough that people can talk without raising their voices. A media zone is the same seating oriented toward the screen. In a 4 by 5 room these usually overlap: the sofa serves both, and a chair or two turns the far end into a reading or coffee corner.

When to float the sofa off the wall

In a small room the sofa belongs against the longest wall. At 4 by 5 metres you often get a better result by floating it, meaning pulling it away from the wall so it faces the room rather than backing into it. Floating defines the conversation zone, gives the room a front and a back, and lets a console table or a reading chair live behind the sofa. It only works if you leave enough room to walk behind it.

• Float the sofa when the room is wider than about 3.5 m, so a walkway survives behind it. A 4 by 5 room clears this easily.
• Leave at least 45 cm of clear floor behind a floated sofa, 60 cm if it is a route people actually use to cross the room.
• Back the float with something: a console table, a slim bookshelf, or a pair of reading chairs. A floated sofa with a bare wall behind it looks unfinished.
• Keep the sofa against the wall if the room is long and narrow, or if the only sensible TV wall is directly behind where the sofa would float.

The order that works

1. 01Pick the TV wall first. It is the one fixed point most rooms have, and it decides which way the seating faces.
2. 02Place the sofa facing the TV, floated if the room allows it, at the viewing distance the screen wants.
3. 03Add the coffee table 40 to 45 cm from the sofa, centred on the seating rather than on the room.
4. 04Bring in a second seating piece: one or two armchairs angled toward the sofa to close the conversation circle.
5. 05Build the reading corner in the leftover space near a window: one chair, a small table, a lamp.
6. 06Lay a rug large enough to sit under the front legs of every seat in the group, so the zone reads as one.

Clearances for a 4 by 5 metre room

These are the numbers the live layout above respects. In a larger room you can afford the comfortable column almost everywhere, so treat the minimum as the point below which the room starts to feel tight again.

For the pieces themselves, a three-seat sofa runs about 2.1 m wide and a large one closer to 2.4 m, which a 4 by 5 room takes without strain. The full set of numbers is in the furniture dimensions guide, and the sofa specifically in standard sofa dimensions.

Sizing the rug for a larger room

The most common mistake in a 20 square metre room is a rug bought for a small one. A rug that is too small pulls the seating in on itself and leaves a ring of bare floor that makes the whole room read as an afterthought. In a room this size, a 2 by 3 metre rug is usually the floor, and 2.4 by 3.4 m is better. Aim for the rug to run under the front legs of the sofa and every chair in the conversation zone, so the seating sits on it as a group rather than around it.

Working with less space than this? The same order applies, tighter: see how to plan a small living room. Or trace your own floor plan from a photo, set the scale once, and walk it in 3D before you move a single thing.