Arranging a living room

The six numbers

The 8-foot rule is the one that decides whether a big room feels good. In a long living room the instinct is to push every piece to the walls; that puts facing seats 14′ apart and the room goes quiet. Two smaller groups beat one large ring, every time.

Sizing the pieces to each other

• Coffee table length ≈ ⅔ of the sofa. An 84″ sofa wants a 48–54″ table. Much shorter and it looks stranded; much longer and the walkway around it disappears.
• Coffee table height within 1–2″ of the seat. Seats sit at 17–19″, so tables sit at 16–18″. A tall table turns a sofa into a dining bench.
• Side table height = arm height, give or take an inch — typically 22–26″.
• Console behind a floating sofa: 30″ tall or less, and a few inches shorter than the sofa so the ends read clean.

Full footprints for all of these are in the sofa & sectional guide.

The rug decides the room's edges

A rug is not decoration here — it is the drawn boundary of the seating zone, and getting it one size too small is the most common and most expensive living-room mistake.

• All legs on — the generous version. The rug runs past the furniture on every side; needs a 9 × 12′ in most real rooms.
• Front legs on — the workhorse. The rug passes under the front of every seat and ties the group together. An 8 × 10′ handles a standard sofa-plus-two-chairs.
• Floating island — the mistake. The rug touches nothing, the seating drifts, and the room reads as furniture parked on a postage stamp.

Sizes and the seating-group math are in the rug size guide.

Four layouts and the rooms they need

These are the sizes at which the layout is comfortable, not the minimum at which it is possible. An open-plan great room is easier than its square footage suggests, because the walkway can run outside the seating group rather than through it — which is the whole trick of arranging a big room.

Where the TV goes

Viewing distance sets the seating position more firmly than any style rule: roughly 1.5–2.5× the screen diagonal for a 4K set. A 65″ TV wants seating 8–11′ back, which in most rooms means the sofa is not against the far wall — it's floating, with a walkway behind it.

The arithmetic, screen size by room, is in the TV size guide.

Try it on the actual room

These numbers are only useful against a real rectangle with real doors in it. Drop your sofa, table and chairs onto your own plan in Poché at true size and the clearances draw themselves — amber when a walkway gets tight, redline when two pieces genuinely collide. Then shop pieces that fit the footprint you just proved works.