Sofa Dimensions (Size Guide)

Here we share our sofa dimensions size guide to help you select the right one for your interior design.
Living room sofa Your sofa is an investment – spend wisely. Deciding on which sofa to go for in a room is a big deal. Sofas don’t come in cheap, so it’s important you invest wisely. It’s so easy to be distracted by the pretty patterns, and stunning fabrics – but there’s much more to consider when purchasing such an important item for your home.

How To Choose The Right Size Sofa For A Room

Before you begin to choose a sofa, think about scale… It may seem self-explanatory, but if your living space is small, having a huge sofa will dominate the space and make it feel overbearing. Likewise, if you have a larger living space, a small sofa will look disproportionate to the rest of the room. It’s also worth considering the ceiling height here too. If the ceiling is high, you’ll want to find a long, wide and low backed sofa to add visual interest to the space. If your room has a low ceiling, the opposite will apply.

Why not test out your 2D drawing skills, and draw the room out to scale? Include the rest of your furniture in your sketch to help you visualize how the room can be configured. Remember to leave space to move around in the room, so factor this into your drawing to ensure you get an accurate representation of the area you’re working with. There are even interior design programs that can help you visualize your space with the exact measurements of your room.

Then, the shape and character of your room…

You might not think it, but the shape of your space makes a huge impact on how big or small your sofa should be, and ultimately how well it fits in situation. You might live in an older property with stunning period features which deserve attention in their own right. The size you pick may be just as important as the sofa colors, especially if you’re working with a smaller floor plan.

Your sofa size should mold to the existing features and character of your room. That way it won’t look out of proportion with the rest of the space, and will actually help to enhance what’s already there. Small living room with brown sofa

Have you thought about traffic flow?

And no, we don’t mean outside. You’ll need to consider how you, and others can freely move around the space. Your sofa shouldn’t be so large that it obstruct doorways, or segments the space to inhibit movement. The last thing you want in your living space is to feel restricted, and confined by your furniture.

Then, ask yourself ‘What do I want from my sofa?’

The answer is obvious – a space to relax of course! However, there are different ways to relax, and it depends entirely on you, your home and personal requirements.

Is your sofa meant to be a place where the whole family can congregate closely together? If so, a large sectional sofa might be ideal. Maybe you’re after a serene space where you can fully stretch out in front of the TV? Consider a long sofa with extra support. Or, you’re simply after an elegant place where you can put your feet up and take a nap –how about a smaller chaise lounge?

Defining what it is that you require from your sofa makes all the difference in how you go about finding the perfect solution for your space.

Measure up

As you bring together your considerations to the scale and shape of your room, the movement of traffic through it, and your personal sofa requirements, it’s time to measure up. You may have a sofa style in mind, or perhaps have even set your eye on a sofa that’s for sale! Measure up the area where your sofa is likely to go and put down some masking tape to get a sense of the width.

You could even draw out the size of your sofa onto plain paper, and cut this out, so you have a realistic idea of size. Then, walk around the imaginary sofa to check how much space you have for walkways, coffee tables etc. Measuring up your room will help you to realistically consider the size, and (perhaps re-evaluate the) style of sofa you should be looking at, which will then help fine tune your options when it comes to your sofa search. Read more about how to measure a sofa here.

Standard Sofa Dimensions

Did you know there are standard sofa dimensions? It might sound surprising, but it’s true. Of course there may be slight variations across different types of furniture, but generally speaking most of the sofas available to buy have the same approximate measurements. Once you know what these are, you can create a rough plan of your space, based on these dimensions. Because we’re kind, we’ve researched them for you.

The standard sofa dimensions are most often 6′ to 8′ feet in length and  32″ to 40″ inches in depth.

Sectional Sofa Dimensions

The sectional sofa… Naturally, there are many different common styles of sectional sofas. The most common kinds are:

5 seat sectional size – Where the left and right sections of the sofa are of equal lengths. For example, if you’re looking at a typical 5 seat sectional with equal sides, this will usually measure in at 95 x 95 inches or 98 x 98 inches. Depths from the back of the sofa to the front are usually between 36-40 inches.

– Three seater sectional sofas which measure in at lengths of 78-88 inches. Depths from the back of the sofa to the front are usually between 37-40 inches.

3 Seater Sofa Dimensions

Three seater sofa size The three-seater…The three seater sofa typically measures in at 90-96 inches wide. Depths from the back of the sofa to the front are usually between 31-39 inches.

Loveseat Dimensions

The Loveseat… You’re looking at measurements ranging from 48-72 inches wide and 36 inches deep.

Sleeper Sofa Dimensions

If you’ve run out of beds, and your friends are egging to stay over, having a sleeper sofa is the perfect practical solution. Not only will you experience its space saving benefits, but its dual function makes it incredibly useful as somewhere to lounge too!

Full Size Sleeper Sofa Dimensions

Full size sleeper sofa size Made in custom sizes, if you’re after a full sized sleeper sofa, you’re looking at measurements of 67″ to 83″ with a mattress width of 52″ to 55″ and about 90″ when fully opened up.

Queen Sleeper Sofa Dimensions

If you’re thinking bigger is better, then the next size up – the Queen, is available ranging from 75″ to 96″ inches with a mattress width of 58″ to 62″.

King Sleeper Sofa Dimensions

For a king sleeper sofa you’ll find the dimensions ranging from 84″ to 92″ with a mattress width of 74″ to 76″.

Coffee Table Dimensions

Always handy to note is the size of an average coffee table which can sit perfectly next to the sofa, or in front of it. The standard measurement of your average coffee table is 48 inches long by 30 inches wide. Now, time to get the kettle on!

For more ideas check out our gallery of types of sofa fabrics here.


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