Published on 17 September 2026

Measuring a corner sofa

A corner sofa plays a major role in defining the feel of your living room. That’s precisely why taking accurate measurements is so important: you want plenty of seating space, a logical layout and no surprises when it’s delivered or installed. Follow the steps below to measure your space and your desired layout clearly and accurately.

What measurements do you need to take for a corner sofa?

When measuring a corner sofa, don’t just look at the overall external dimensions. The following measurements are particularly important for making the right choice:

• Total width – from the far left to the far right
• Long side – the length of the longest section of the corner sofa
• Short side or lounge area – the length of the shorter section
• Total depth – from the front of the sofa to the back
• Height – from the floor to the top of the backrest
• Seat depth – from the front of the seat to where your back would normally rest
• Seat height – from the floor to the top of the seat

When placing furniture in a room, the external dimensions are the main factor to consider. Seat depth and seat height are particularly useful for assessing comfort, especially when comparing different pieces of seating furniture.

How do you measure the space for a corner sofa?

Always start with the spot where the sofa is to go. Measure the available length and depth along the wall or in the part of the room where the corner sofa will be placed. Also make a note of windows, radiators, sockets, doors and any other furniture that might affect the layout.

Next, work with a simple floor plan on paper. Draw the walls and note down the measurements you’ve taken. This will help you see more quickly whether a corner sofa fits in well and whether you’ll still be able to move around comfortably in the room.

Measuring step by step

1. Measure the wall or floor area where the sofa is to be placed.
2. Decide which side the corner will be on: left or right, as viewed from the front of the sofa.
3. Measure how much depth is available for the lounge area or the short side.
4. Check for obstacles such as window sills, doors that swing open and protruding parts.
5. Make a note of everything straight away, so you don’t mix up the measurements later.

How much space should you leave around a corner sofa?

A corner sofa might fit on paper, but it can still feel too big if there isn’t enough space around it. You should therefore take into account the space around the sofa, not just the sofa itself.

• Walking space – ideally, leave a space of around 70 to 90 cm to allow for comfortable passage
• Space for a coffee table – around 40 to 50 cm is usually comfortable
• An open feel to the room – don’t let the sofa block all the lines of sight

In compact living rooms, it often helps to mark out the shape on the floor with tape first. That way, you can see straight away exactly how much space the corner sofa actually takes up.

How do you measure a corner sofa yourself?

If you already have a sofa, or if you want to compare an existing corner sofa with a new arrangement, measure each component systematically.

Measuring length and sides

First, measure the total width from outer edge to outer edge. Then measure the long side and the short side separately. With a corner sofa, it is precisely these two measurements that are important, as they determine how the sofa will fit into your living room.

Measuring depth and height

Measure the total depth from the front of the seat or armrest to the back of the backrest. To measure the height, measure from the floor to the highest fixed point on the backrest.

Measuring seat depth and seat height

If you want to compare comfort levels, be sure to measure the seat depth and seat height as well. Seat depth is measured from the front of the seat backwards. Seat height is measured from the floor to the top of the seat. These measurements tell you a lot about how active or, conversely, how relaxed your sitting position is.

How do you check whether the corner sofa will actually fit?

A practical check clears up any doubts. Mark out the dimensions of your chosen corner sofa on the floor using masking tape, or use newspapers, cardboard or loose sheets of paper to visualise the shape. This will give you a better idea of the proportions than figures alone.

Please bear three things in mind:

• The angle is correct – whether it’s on the left or the right makes a big difference in the room
• The walking route remains logical – you don’t want to have to go round the sofa
• Other items of furniture remain usable – think of cupboard doors, windows and the distance to the table or TV stand

Are you considering a modular sofa, such as our modular sofas? If so, this guide will be particularly useful. It will help you work out more quickly which sofa arrangement best suits the layout of your living room. If you’ve already decided on a fixed corner sofa, take a look at our corner sofas to compare styles and sizes.

Don’t forget the entrance

It’s not just the space in the living room that matters. The sofa must also be able to fit through the door. So make sure you measure the entire route from the front door to where it will eventually be placed.

• Door width and door height
• Aisle width
• Bends and narrow sections
• Staircase or landing
• Lifts, if you live in a flat

Check not only the largest dimension of the sofa, but also whether the piece of furniture needs to be rotated or tilted. With sofas made up of separate sections, it is often easier to plan their placement than with a fixed arrangement. Also read the practical tips on Delivery and shipping to check whether access points (doors, stairs, lift) are adequate.

Common mistakes when measuring a corner sofa

• Measure just the wall – without taking into account walking space and other furniture
• Swap left and right – which means the angle ends up on the wrong side
• Look only at the total width – whilst the depth or short side is the real problem
• Forgotten passageways – making delivery or installation more difficult than anticipated
• Measuring by feel – rather than actually laying out the shape on the floor

Need help choosing the right setup?

At Looiershuis, you’ll find sofas that can be arranged in various configurations, from a straight sofa to a corner sofa or a larger arrangement such as U-shaped sofas. This makes it all the more important to measure carefully in advance to determine which shape and size will work best in your home.

If you’re unsure which of several items or configurations to choose, you can compare them more effectively in the showroom or via the product information to see which combination suits your space best. Having the exact measurements to hand makes that choice a lot easier. If you’d like to check your measurements against a specific model, take a look at the Stratos Corner Sofa. Do you also need interior design advice, as this can help with dimensions and layout.

Frequently asked questions about measuring a corner sofa

How do you measure a corner sofa?

Measure the overall width, the long side, the short side, the overall depth and the height. If you also want to compare seating comfort, measure the seat depth and seat height as well.

How do you measure the space for a corner sofa?

Measure the available length and depth of the space where the sofa is to be placed. Then mark out the area, taking into account doors, windows, radiators, other furniture and sufficient space to walk around.

What are the standard dimensions of a corner sofa?

Standard sizes vary considerably depending on the model and configuration. Lengths and depths can vary significantly, particularly with corner sofas and modular lounge sofas. You should therefore not rely on an average size, but always check the exact product dimensions and your own space.

How do you choose the right size corner sofa?

Choose a size that suits the room, the intended walking routes and how the space will be used. A corner sofa should provide enough seating, but without blocking the room or making it feel too cramped. For further guidance, you can also take a look at our interior design advice.