Sofa Sizes and Dimensions: The Must Knows
As each space is unique, there’s no one-size-fits-all rule of thumb for sofa placement. Knowing how to correctly measure your space will make your search for the right sofa just that much easier.
According to Toussaint Derby, the need-to-know measurements for a sofa are width, depth, and seat height. “The width and depth are obvious suspects, as you want to make sure you’re getting the right size sofa for the room you are buying it for,” explains Derby. “If you have a small space and you get a really big sofa, it will easily overwhelm the space.”
“The width and depth are obvious suspects, as you want to make sure you’re getting the right size sofa for the room you are buying it for."
Knowing who you’re shopping for can also make a difference in buying a sofa that you, your family, and your friends will find comfortable. For Derby, an emphasis on seat height is important. “For someone like me, with long legs, seat height is important for comfort reasons. But it’s also important when considering what coffee table to choose,” said Derby. “If it's too low, it will be uncomfortable and feel odd coupled with the sofa, when sitting and trying to place drinks or other items down.”
Sofa Width: Sofa width is the distance from the edge of one armrest to the edge of the other. Standard sofa width is usually around 90 inches wide, with anything much smaller than that considered a loveseat.
Sofa Depth: Sofa depth measurement goes from the front of the sofa to the back of the sofa. The standard sofa depth is around 38 inches. It’s important to note that sofa seat depth is not the same as the overall sofa depth. Seat depth is measured from the front edge of the seat cushion to the back edge of the cushion. The average seat depth is 21-24 inches, with ‘deep seat’ sofas coming in between 26-28 inches.
Seat Height: Seat height is the distance from the floor to the top of the sofa’s cushion. Most seats are 17” or 18” from the floor, but it’s normal for seat height to range from 15 inches to 20 inches.
Below you can see a size and dimensions breakdown for The Inside's Modern Sofa:
Here are the measurements highlighted in the graphic:
- Height: 32"
- Depth: 33.5"
- Width: 89"
- Seat height: 20"
- Seat width: 84"
- Seat depth: 22.5"
- Arm height: 24.5"
- Clearance: 5.25"
Watch out for the Seat Back Height and Seat Depth
According to Natasha Adams, “The size and scale of the piece should be in proportion to the room, along with consideration for the user and use.” She recommends watching out for the height of the back cushions and seat depth, as those often overlooked proportions have the potential to affect user experience in a big way.
“A high back and neck support are important if you’re a big movie watcher,” explains Adams. “But if you prefer your sofa to be more of a design piece, low backs are seen as more stylish, and can be advantageous in open floor plan living, as it does not create too much of a visual barrier in the space.”
When it comes to seat depth, “a deep seat can be uncomfortable for small people, while shallow seats can leave the long-limbed cramped and unsupported,” says Adams.
If you’re considering a reclining sofa, depth is another big factor. While some recliners are ‘wall huggers’ and only need a couple of inches of clearance to raise the footrest, others fully recline and require at least two feet of space.
What are the Average Couch Dimensions?
According to Toussaint Derby, the average size sofa is around 88” to 90” wide.
“Generally speaking, something smaller than that might be considered an ‘apartment sofa’ or loveseat, and anything beyond that may be considered oversized,” explains Derby.
Jessica Harris agrees, saying that, “Sofas come in large and small sizes, but the standard sofa size is 90 inches wide, 38 inches deep, and 34 inches high.”
However, keep in mind that there are many different types of sofas. If your needs go beyond the average sofa dimensions, you can measure to see if your space accommodates a modular sofa. These allow you to connect three-seater and two-seater sofas with chaise sectionals, corner sofas, and accent chairs for a truly custom furniture piece that fits your living area.
What are the Average Loveseat Dimensions?
For those looking for a comfortable addition to a small space, such as a studio apartment, a loveseat might be just the right piece of furniture.
According to Derby, the average loveseat is 65 inches wide, with some wiggle room. “Some smaller loveseats can be around 52 inches wide, so there is a range, just be wary of anything smaller than that,” says Derby.
Loveseats also make great additions to seating areas with multiple sofas, as their small size works perfectly perpendicular to the more traditional three-seat sofa. Creating an L-shaped seating arrangement in your home is ideal for those looking to entertain large groups or host family gatherings.
Ballpark Sofa Sizes
Although sofa measurements vary, below is a guideline to standard sofa dimensions by size:
- Two Seats (Loveseat): 65” width x 38”
- Three Seats: 90” width x 38” depth
- Four Seats: 117” width x 38” depth
- Five Seats: 144” width x 38” depth
- Six Seats: 171” width x 38” depth