Dimensions / Furniture / Sofas / L-shaped sectional
An L-shaped sectional is commonly 274–305 cm (108–120 in) on the long side with a 183 cm (72 in) return, 91–112 cm deep and 81–97 cm tall. It suits a living room of about 4.9 × 4.3 m (16 × 14 ft) or more.
| Long side | Return | Depth |
|---|---|---|
| 274–305cm108–120 in | 183cm72 in | 91–112cm36–44 in |
Sources: RoomSketch3D. Checked October 2026.
Enter both sides, the longest section and the diagonal depth, then your doorway, hall and the two walls of the corner. Sections travel one at a time, so the doorway checks use the longest one.
All in centimetres. 1 in = 2.54 cm.
Tilted back, it needs 82 cm of width. Your doorway is 91 cm wide, so there is 9 cm to spare.
Each section is tilted through on its own. Use the diagonal depth printed for the sections, or measure one with its cushions off.
At 190 cm it can stand on end under your 203 cm doorway.
Only the longest section has to get in this way; the corner piece is usually the shortest.
The long side takes 280 cm of your 320 cm wall and the return 180 cm of your 240 cm side wall.
Long side along one wall, return along the other. Leave the walkway on the open side, see the table.
Fitting a corner? Photograph both walls, mark their lengths in SizeMarker and check which side the return goes on before you order.
Mark a photoLong side, the return (short side) and depth. Sectionals come in many configurations; these are typical ranges.
| Type | Long side | Return | Depth |
|---|---|---|---|
| L-shaped, most commonThis page | 274–305 cm108–120 in | 183 cm72 in | 91–112 cm36–44 in |
| L-shaped, full rangeFrom compact to oversized | 244–366 cm96–144 in | 152–244 cm60–96 in | 91–112 cm36–44 in |
| U-shapedCentre span, and each of two returns | 244–366 cm96–144 in | 152–213 cm60–84 in | — |
| Sofa with chaiseSofa side, and the chaise length and depth | 183–244 cm72–96 in | 152–183 cm60–72 in | 91–102 cm36–40 in |
| 3-seater sofa | 180–230 cm71–90 in | — | 85–95 cm33–37 in |
Sources: RoomSketch3D · Castlery
An L-shape takes a corner and a walkway, so the room matters as much as the sofa.
| Measurement | Size |
|---|---|
| Height | 81–97 cm32–38 in |
| Living room it fitsOr larger | 4.9 × 4.3 m16 × 14 ft |
| Walkway around the open side | 91 cm36 in |
| Behind it, if it floats in the room | 30–46 cm12–18 in |
| Coffee table to the long side | 36–46 cm14–18 in |
| Standard seat depth | 51–61 cm20–24 in |
| Deep seatSectionals often have deeper seats | 64 cm or more25 in or more |
Sources: RoomSketch3D · Bassett
Judged standing in front of the piece and facing it, not sitting on it.
| Term | What it means |
|---|---|
| LAF (left arm facing) | The arm is on your left as you face the piece |
| RAF (right arm facing) | The arm is on your right as you face the piece |
| Three-piece L, for example | RAF wedge + armless sofa + LAF sofa |
| Two LAF pieces together | One end is left without an arm |
Sources: AFW
Most are 274–305 cm (108–120 in) on the long side with a return of about 183 cm (72 in). Across all sizes the long side runs 244–366 cm (96–144 in) and the return 152–244 cm (60–96 in).
Left arm facing and right arm facing. They say which side the arm is on when you stand facing the piece, not when you sit on it, so a RAF piece has its arm on your right as you look at it.
Usually not. It comes as sections, for example a RAF wedge, an armless sofa and a LAF sofa, and each goes through the door on its own. Measure the longest section against the doorway, not the whole long side.
About 4.9 × 4.3 m (16 × 14 ft) or larger. Leave 91 cm (36 in) of walkway around the open side and 30–46 cm (12–18 in) behind it if it stands away from the wall.
Often, especially with a chaise. A standard seat is 51–61 cm (20–24 in) deep; deep-seat designs are 64 cm (25 in) or more.
With sectionals, the questions buyers ask are about configuration: which end is LAF or RAF, how long each section is, what the corner piece measures. Mark every section on your product photo in SizeMarker and send the set as one product card for WhatsApp or WeChat.
