Both are corner sofas, and both give you far more seating than a standard 3 seater. But an L shape and a U shape suit very different rooms. Pick the wrong one and you end up with a sofa that swallows the space, or one that leaves half the family on the floor on film night.
Here's how the two compare, and how to tell which one your living room can take.
What's the difference?
An L shape sofa has two sides that meet at one corner. Often one side is a chaise for stretching out; on others, both sides are full seating. It fits neatly into a corner of the room, or it can divide an open-plan space.
A U shape sofa has three sides: a long middle section and a return at each end. Some have seating on all three sides; others have a chaise or footstool at one or both ends. It wraps round a coffee table or faces a TV wall to create one sociable seating area.
L shape vs U shape at a glance
| L shape sofa | U shape sofa | |
|---|---|---|
| Room size | Small to large rooms | Medium to large rooms |
| Typical width | Around 2.2 to 2.8m on the long side | Around 2.6 to 4.5m across, plus two returns |
| Seats | Usually 3 to 5 people | Usually 5 to 8 people |
| Best for | Couples, smaller families, open-plan zoning | Large families, entertaining, film nights |
| Room shape | Works in most rooms, including long, narrow ones | Best in square or wide rooms |
| Walkways | Easy to keep one side of the room open | Encloses three sides, so plan access carefully |
When an L shape sofa is the better choice
- Your room is small or medium-sized. An L shape tucks into one corner and leaves the rest of the floor free.
- The room is long and narrow. Run the long side along the wall and keep the chaise out of the walkway.
- You want to zone an open-plan space. The back of the long side makes a natural divider between the living and dining areas.
- There are doors on several walls. An L shape only uses two walls, so it's easier to keep routes through the room clear.
- You want a chaise to stretch out on. Many L shapes have a chaise end, which gives one person a proper lounging spot.
Take the Austen Large Corner Sofa: at 260 × 182cm it gives you a long run of seating with a corner to curl up in, but it still fits a typical family living room. Browse more in our L shape sofa collection.
When a U shape sofa is the better choice
- You regularly seat five or more people. A U shape gives everyone a proper seat, with nobody perched on a dining chair.
- Your room is square or wide. A U shape fills the space and turns it into a cosy, enclosed seating area.
- Film nights are a big deal. Everyone faces the screen, and the ends are perfect for stretching out.
- You want the sofa to be the centrepiece. Nothing says "come and sit down" like a U shape round a coffee table.
These real sizes give you a feel for the space a U shape needs:
- The Sorento U Shape Sofa measures 155 × 260 × 155cm: a 260cm back with a 155cm side at each end. It's one of our more compact U shapes.
- The Savoy Fullback U Shape Corner Sofa is 302cm wide and 190cm deep, in five pieces you can move around.
- The Belmont U Shape Modular Sofa comes in three sizes, from 275cm to 450cm wide, and every size includes two footstools.
- The Austen Double Corner Sofa and Footstool Set gives you a U-shaped seating area of 260 × 260cm, plus a matching footstool.
- The Sienna large U shape measures 160 × 302 × 160cm, with deep, sink-in seats.
- For a big family room, the Camden Extra Large Modular Sofa is 182 × 405 × 182cm, in seven pieces with black contrast piping.
How to tell if a U shape will fit
A U shape needs space on three sides, so measure carefully:
- Measure the wall the back of the sofa will go against, or the width you want it to take up if it will stand away from the walls.
- Measure how far into the room each side can come without blocking a door, window or radiator.
- Leave a walkway of roughly 75 to 90cm wherever people need to get past, and about 45cm between the sofa and a coffee table.
- Mark the shape on the floor with masking tape and live with it for a day.
If the tape makes the room feel cramped, an L shape is probably the better fit. Don't forget to measure your doors, hallway and stairs too. Our corner sofa measuring guide walks you through it.
The middle ground: modular sofas
If you can't decide, a modular sofa gives you more freedom. Because it's made from separate sections, you can set it up as an L shape now and add pieces later, or rearrange it if you move. The Camden range goes from a single armchair up to a seven-piece sofa, and the Cloud range lets you build your own layout from separate pieces. See all our modular sofas.
Another option is a double-ended chaise sofa. The London Large Double Ended Chaise Sofa is 315cm long with a chaise at each end, so two people can stretch out without needing the floor space of a U shape.
L shape vs U shape sofa FAQs
Is a U shaped sofa good for a small living room?
Usually not. A U shape encloses three sides of the seating area, which can make a small room feel crowded. In a smaller room, an L shape or a compact corner sofa gives you plenty of seating and keeps the floor open.
How many people does a U shape sofa seat?
Most U shapes seat five to eight people, depending on the size. Larger modular designs, like the seven-section Belmont, seat more.
Is an L shape sofa the same as a corner sofa?
Yes. In the UK, "corner sofa" and "L shape sofa" usually mean the same thing. A U shape is sometimes called a double corner sofa.
Which side should the chaise go on?
That depends on your room. Our guide to choosing a left or right hand corner sofa shows you how to work it out.
Still deciding? Browse our corner sofas, which include both L and U shapes, or order fabric swatches to see the colours in your room. Delivery is free to the room of your choice across UK mainland.