The Difference Between a Sofa and a Couch—and Which One You Should Choose

In many rooms of the home, the seating arrangement you choose helps set the tone for the space. For example, in the living room, where entertaining often takes place, a larger and more formal seating area is generally preferred. On the other hand, in smaller areas of the home, like a personal library, you may see something smaller and more laid back. This is where the sofa vs. couch debate comes in. While the two terms are typically used interchangeably, there are some minor details that set them apart. When choosing which one to use in the various rooms of your home, those small distinctions can help guide you.

What Is a Sofa?

A sofa is a piece of furniture often designed with a backrest, armrests, and cushions for seating two or more people comfortably. "It plays a pivotal role in defining the aesthetics and functionality of a living area, serving as a gathering place for socializing," says Kerrie Kelly, creative director of Kerrie Kelly Design Lab.

What Is a Couch?

Similar to a sofa, a couch is a versatile, upholstered piece of furniture designed for seating multiple people. It typically features cushions and may or may not have armrests. "It serves as a central hub for relaxation within a living space, offering both style and functionality," says Kelly.

Key Differences Between a Couch and Sofa

While couch and sofa are sometimes used synonymously there are a few subtle differences between them.

Design

The main difference between a sofa and a couch lies in their design and how they're used. "Sofas typically have more structured, upholstered arms and backs and are often larger, while couches tend to have a more casual and versatile design, with softer lines and may lack arms," says Kelly.

Placement

Another key distinction between a sofa and a couch is placement. "Sofas are often a primary piece in a formal living room or family room, where multiple people will gather, spend time together both to relax and entertain," says Mindy O'Connor, principal designer for Melinda Kelson O'Connor Architecture & Interiors. "The sofa may be viewed from other spaces and act as a prominent design feature."

On the other hand, a couch is typically used in a more casual space like a den, office, bedroom, playroom or basement, says O'Connor. "It might be a central or secondary element in the space, and be layered with throws and pillows."

Formality

A sofa is generally considered more formal than a couch due to its structured design, upholstered arms and back, and often larger size, says Kelly. "It's often chosen for formal living rooms or spaces where a more sophisticated aesthetic is desired, while a couch is seen as a more casual and versatile option for relaxed, everyday use," she adds.

How to Know Which Is Best for Your Home

Knowing whether a couch or sofa is best for your space comes down to how much space you have and the room's level of formality.

"To determine if a sofa is best for your space, consider its size in relation to the room, ensuring it doesn't overwhelm or crowd the area," says Kelly. Sofas tend to be slightly bigger than couches, so they're typically better for larger spaces.

"If your space is more formal, and the seating will be used for entertaining, conversation, and in various types of gatherings in formal but comfortable arrangements, a sofa may suit your needs," says O'Connor. In smaller, more casual areas of the home, a couch is likely ideal.