Sofa size guide: What size sofa should I buy?

Inspiration Station - Living Room

charcoal grey scandi style corner sofa

Choosing the right size sofa for your space can be a real challenge. There are some general rules to follow, particularly when it comes to the space around it. Leave at least 30” between your sofa and furniture to allow for walkways, but you’ll only need 18” before your side table or coffee tables so that they’re within reaching distance.

Yet aside from allowing space around your new sofa, there are a number of things to consider to make sure that the style and shape you choose fits in your home and through the front door. Our guide will show you how to measure your space, find a sofa that fits, and work out where to place it, so that you can find what sofa is right for you.

What are standard sofa sizes?

Blue fabric 3 seater sofa
Jasmine three seater sofa

Average sofa sizes

  • Loveseat: (W) 130cm x (H) 98cm x (D) 95cm
  • Average 2 seater sofa size: (W) 175cm x (H) 98cm x (D) 95cm
  • Average 3 seater sofa size: (W) 210cm x (H) 98cm x (D) 95cm
  • Average 4 seater sofa size: (W) 240cm x (H) 98cm x (D) 95cm

Sofas need to be measured by height, depth and length. Although traditional furniture tends to be standardised, there are often exceptions, especially in contemporary design. These average sofa sizes also do not take footstools, recliners, chaise loungers or sofa beds into consideration, so these are design aspects you must take into account when choosing the right sofa for your home.

Before you go shopping, there are two things you need to measure. Firstly, the space in your living room where you intend to put your sofa, including architectural bends and details like the height of the window sill and any declining ceiling heights.

Beige chaise corner sofa with scatter cushions
Memphis corner sofa

How to measure a corner sofa

Corner and modular sofas are a bit trickier to measure due to their shape, but, for some living rooms, they’re the best option due to their ability to wrap around the room. You need to remember that corner and modular sofas have 2 lengths, so you’ll want to measure both up for your space. You also need to take the depth into account to make sure you have enough space at the front of the sofa.

Corner sofas are more-or-less standardised, but you will need to decide whether you want a left-hand corner sofa or a right-hand corner sofa. Modular sofas, however, are customisable for your space and so must be measured section-by-section then added together, around each and every angle, to find the overall width, height and depth.

How do you know if a sofa will fit?

blue fabric chaise corner sofa in grey living room with accessories
Brighton chaise sofa

The next thing you need to measure is the rest of your home, i.e. the doorway, hallway, stairway, tight corners and wherever else you need to manoeuvre your sofa. This is a really important step as you want to make sure your sofa will fit through internal doors and hallway space before it gets delivered. Don’t forget to check if the sofa your choosing can be broken into sections for easy access and whether the pillows and cushioning can be removed for ease.

How to get a sofa through the door

This is where the second important metric comes into play: the diagonal depth of your sofa will help you work out if your sofa will fit through the door. Your doorways won’t always be wide enough to fit the regular depth of the sofa, so you can either turn it on its side or you can twist it into the doorway. Measuring the doorway’s height before you buy is the best way to work out if your sofa entering your home is a possibility.

How to tell if your sofa will fit upstairs

If you live in a flat or your living room is on the upper floor of your home, you’ll need to ensure there isn’t a challenge getting it up the stairs. Maybe you’re lucky enough to have a lift in your building - check if it has any weight restrictions before choosing this method of access. Otherwise, you’ll need to note the height of the stairwell as well as the depth of any corners or turns that may come in your way.

When ordering a sofa from Oak Furnitureland, we’ll always deliver it to the room of your choice but we ask that you measure your home thoroughly to ensure it fits. Use our measuring guide below to make sure you’ve measured all the important areas.

Where to place a sofa

As part of choosing a sofa, you’ll want to think about its placement in your room and seating arrangement options. You want your sofa to be the central piece and focal point of the design, but not swallow up the space, especially if you have a small living room. You’ll also want enough seating to fit the whole family.

Silver leather three seater reclining sofa
Dylan three seater recliner sofa

Think about maintaining adequate pathways around the room, furniture that faces or reflects onto nature and avoid sofas that face directly opposite each other. Consider matching accent chairs, loveseats or armchairs that point slightly off-center from each other but still come together in a communal space.

Common mistakes when buying a sofa

Although this guide has been all about finding a sofa that’s the right size for you, you do also need to consider the upholstery material and if it fits into your design scheme and lifestyle. Do you want a leather or fabric sofa?

Our best advice would be to try before you buy. If you can, visit your local store to get a good idea of the colour, shape and feel of the sofa and bring your living room measurements with you so you don’t fall in love with the wrong one.

Discover your perfect sofa range, no matter the size, shape or style of your living room.

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