Insider's Guide to Furniture & the Home Furnishings Industry

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What are the Dimensions for Sectional Sofas?

There are no official standards regarding furniture sizes.


If you google "small sectionals" and then chart the sizes of the products that are listed under that description, there will be virtually no difference than if you had simply googled "sectionals" or even "large sectionals."

Sofa with Chaise/Sectional

Another confusion exists in the definition of "sectional." Some furniture retailers describe the furniture shown here as a "sectional" while others would designate it as a sofa and chaise.

In either case the most common dimensions for this type of furniture would include lengths of 78" - 88" for a three seat version. The depth from the back of the sofa to the front of the seat cushion is most typically 36" - 40" and the total depth from the back of the sofa to the front of the chaise cushion is 68" - 72"

[The "small-scale" sofa/chaise "sectional shown on the right actually measures 78"w x 32" d - 66"d including chaise.]

Another common sectional configuration consists of equal length left and right sections.


[The 5 seat sectional shown on the left measures 83" x 83" with a total depth of 32". This is possibly the smallest 5 seat sectional currently available.]

Typically most 5 seat sectional configurations with equal sides are 95" x 95" or 98" x 98" with depths of 36" - 40".


Of course there are many other possible configurations and sizes. For example:

Sectional by Simplicity Sofas

The Simplicity Sofas sectional shown to the right consists of 7 individual seat units plus a chaise. As shown the dimensions are 95" x 118" x 59".

Additional arm, armless, corner and chaise units can be added on indefinitely to create a sectional as large as needed in any direction.

This Simplicity Sofas sectional is also engineered to fit through narrow doors or stairways as small as 8 inches in width.

The sectionals shown above are modular in nature with each seat being an individual unit. This makes it possible to make each side as long or short as needed.

The sectionals shown above are all ambidextrous (either side can be longer and the longer side can be reversed when needed.)

With other furniture brands it is far more common for sectionals to have 2 seat or 3 seat units that are joined together to form a sectional. It is less expensive to make furniture with multiple seats in a single unit to have each seat as an individual unit; however the two different length sides cannot be reversed.

All sectional photos shown on this page are from Simplicity Sofas.

Comments RSS feed for comments on this page

  1. Morgan Condo Morgan Condo A question.How do the sections hook to one another? Wednesday, May 16, 2018
  2. The author Attachment hardware is at the bottom of the bases. The right side of the sectional units has a tab which fits into a U shaped receptacle on the left side of the units. Monday, April 15, 2019