Here’s a set of 4 charts that illustrate the proper sofa dimensions for 2, 3, 4 and 5 people. When you need a couch big enough for a certain number of people, this is a great brief article and set of diagrams to check out.
How many people does a sofa accommodate? It’s an important question when buying a couch. Of course, it varies whether it’s kids vs. adults, but there are standard dimensions for sofas that accommodate 2, 3, 4 or 5 people.
Below we set out a series of charts and illustrations that show you the proper dimensions of couch depending on how many people you want to accommodate.
Sofa dimensions overview:
The main dimension you need to concern yourself with when choosing a sofa by how many people can sit in it is the width of the seating area.
- 2-person sofa: 50″ seating width (does not include width of the arms).
- 3-person sofa: 78″ seating width (not including arms).
- 4-person sofa: 90″ seating width (not including sofa arms).
- 5-person sofa: 108″ seating width (not including couch arms).
- Sofa seat height: 18″ (this can vary but 18″ is a common height for the sofa seat).
- Sofa seat depth: 24″ to 28″ approximately.
- Sofa back height: Varies tremendously on sofa style.
- Total sofa width: Again, it varies depending on the width of the arms.
A. Sofa Dimensions for 2 People
Detailed chart setting out all the many dimensions of a two-seater sofa.
The two-person sofa allots approximately 25″ per person in the sitting area.
B. Sofa Dimensions for 3 People
Detailed diagram setting out all the key dimensions of a sofa for 3 people.
A three-person sofa allots roughly 78″ in seating width which is 26″ per person.
C. Sofa Dimensions for 4 People
Detailed illustration showing the important sofa dimensions to seat up to four people.
A four-person sofa offers approximately 90″ in width (seating area) which is 22.5″ per person. Again, this can vary.
D. Sofa Dimensions for 5 People
Our final custom diagram that explains the dimensions of a sofa that seats up to five people.
The five-person sofa comes in with a total seating width of 120″ plus. Some are super-sized and can accommodate more than five people.