Sofa Dimensions & Sizing Guide

Most 2-seater sofas are about 150 to 180 cm wide, 3-seaters are about 200 to 230 cm wide, and 4 to 5-seaters run from about 230 cm to over 300 cm. Most sofas are 85 to 110 cm deep, with a seat height of around 40 to 50 cm. These are general ranges, and roomier designs can sit outside them, so always check the exact size of the sofa you like. Before you buy, measure your room, your doorways and any tight corners on the way in. Below, we cover standard sofa dimensions by type, real examples from our range, how to measure your space and how to choose the right size for your living room.

Key Takeaways

• A 2-seater sofa is usually 150 to 180 cm wide, a 3-seater is about 200 to 230 cm, and a 4 to 5-seater can reach 310 cm or more.

• Roomier sofas can be wider than these ranges. Our 2-seater modular sofas measure 190 to 218 cm wide, so check each product page.

• Most sofas are 85 to 110 cm deep with a seat height of 40 to 50 cm, while seat depth is usually 55 to 65 cm on a standard sofa and deeper on lounge-style designs.

• Measure your room, doorways, hallways and stairs before you order, and compare them with the sofa's box sizes.

• A simple guide is to choose a sofa about two-thirds the length of its wall, with a coffee table about two-thirds the length of the sofa.

Standard Sofa Dimensions in cm

Sofa sizes follow general ranges based on the number of seats. Straight sofas range from 2-seaters to 5-seaters, while corner, chaise and modular sofas change the shape of the footprint.

2 Seater, 3 Seater & 4 to 5 Seater Sofas

Straight sofas get wider with each extra seat, while depth and height stay fairly similar across sizes. These ranges, which match our 2-seater vs 3-seater vs corner sofa guide, are a helpful starting point.

• A 2-seater is usually 150 to 180 cm wide and 85 to 100 cm deep.

• A 2.5-seater is usually 180 to 200 cm wide.

• A 3-seater is usually 200 to 230 cm wide and 85 to 105 cm deep.

• A 4-seater is usually 230 to 260 cm wide.

• A 5-seater is usually 260 to 310 cm wide or more.

Dimensions.com gives a wider spread of 121 to 183 cm for a two-seater and 183 to 244 cm for a three-seater, with 213 cm the most typical three-seater length. That shows how much sizes vary between brands.

Seat height is usually 40 to 50 cm, and total height with the backrest is usually 75 to 95 cm. Seat depth is the distance from the front of the seat to the back cushion, and it's different from the overall depth. Most sofas have a seat depth of 55 to 65 cm, while deep, lounge-style sofas can go well beyond that.

Corner, Chaise & Modular Sofas

Corner and chaise sofas add a section that extends out from the main sofa, which turns a rectangle into an L-shape. Modular sofas are made of separate sections that you can arrange in different ways.

• A chaise sofa has one extended seat for stretching out, so it needs extra floor space on that side.

• A corner sofa is usually 220 to 300 cm or more on its longer side.

• A modular sofa has no fixed size, because the total length depends on how many sections you choose.

• A U-shaped sofa has two return sides, so it needs the most floor space.

Remember to leave walking space beside the chaise or corner section, not just in front of the sofa.

Real Examples From Our Range

Here's how some of our sofas measure up, taken from each product page. They show why it's worth checking the exact size rather than relying on the seat count.

Our 2-seater modular sofas are wider than a typical 2-seater because each seat is generous. If you're working with a tight wall, compare the width in centimetres rather than the number of seats.

Sofa Sizes Compared

This table brings the general ranges together so you can shortlist a size before checking individual products.

Every design is different, so treat these as a guide and confirm the exact measurements on the product page before you order.

How to Measure a Sofa Before You Buy It

To measure for a sofa, mark its footprint on the floor with masking tape, check the space around it, and make sure it can get through every doorway, hallway and stairwell on the way in. It only takes a few minutes and helps you avoid delivery surprises.

Measuring Your Room

Start with the space where the sofa will sit.

• Measure the length of the wall the sofa will sit against.

• Leave around 60 to 80 cm in front of the sofa for legroom and walking space.

• Leave about 30 cm at each end if the sofa isn't tucked into a corner.

• Leave around 30 to 45 cm between the sofa and the coffee table so you can reach it easily and still have legroom.

• If you're choosing a corner or chaise sofa, check the walking space beside the extended section too.

Mark the sofa's footprint on the floor with masking tape and walk around it to see how the room feels before you order.

Checking Doorways & Hallways for Delivery

Next, check the path from the street to the room.

• Measure the width and height of every door on the way in. The most common door size in Australia is 820 mm wide and 2040 mm high, but older homes can have narrower doors.

• Measure the narrowest point of each hallway.

• Check any tight corners, since long boxes need room to turn.

• Measure stairwells and landings if the sofa needs to go upstairs.

• If you live in an apartment, measure the inside of the lift and check building access for deliveries.

Compare these measurements with the sofa's box sizes, not just its assembled size. Our sofas arrive in several boxes and you put them together at home, and each product page lists what arrives in each box.

What Size Sofa Fits Your Living Room

A simple way to size a sofa is the two-thirds guide. Choose a sofa that's about two-thirds the length of the wall it sits against, then a coffee table that's half to two-thirds the length of the sofa. For example, a 330 cm wall suits a sofa of about 220 cm, and a 220 cm sofa suits a coffee table of about 145 cm.

You may also hear about the 2-2-1 rule. It's a layout guide rather than a sizing rule, and it suggests two main seats, like two sofas, plus two secondary seats, like armchairs, arranged around one central piece, like a coffee table or ottoman. It works best in medium to large living rooms where there's space to walk around each piece.

As a rough guide to room size, these sofa sizes tend to work well.

• A small living room suits a 2-seater or a compact 3-seater.

• A medium living room suits a 3-seater or a chaise sofa.

• A large or open-plan living room suits a 4-seater, a corner sofa or a modular sofa.

For a closer look at the three most popular sizes, read our guide to 2-seater vs 3-seater vs corner sofas.

Find the Right Sofa Size for Your Space

Once you know your measurements, you can shop with confidence. Every sofa page in our range lists the full dimensions, and our 120-day trial gives you time to make sure it suits your home.

• • Browse our 2 seater sofas for smaller living rooms, apartments and studios.

  • Explore our 3 seater sofas, the most versatile size for everyday living.

  • See our 4 seater sofas for family rooms and open-plan spaces.

  • Find a corner sofa to make the most of an L-shaped space.

  • Stretch out on a chaise sofa made for lounging.

  • Build your own layout with a modular sofa that can grow with your home.

You can also compare every size in our full range of sofas and couches.