Corner sofas (sometimes called sectional sofas) are great for maximising sitting space, but can be difficult to place in a room due to their size. Before you buy a new section, we recommend measuring your space to ensure it fits. For tips on how to measure for a corner sofa, keep reading.

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Corner Sofa Dimensions

There are no standard dimensions because of how customisable sectional sofas are, but there are a few general measurements to keep in mind when measuring for a corner sofa. Refer to the following sectional diagram for our definition of overall measurements for sectionals.
Overall Length: This is the combined measurement of both the right arm (or left arm) loveseat and the corner chair. The overall length of a sectional sofa is usually between 94” and 156” (or about 8’ and 13’) long.

Overall Width: This is the total measurement of all the components along the back of the sofa. In the illustration, the components are the left arm chaise, the armless loveseat in the middle and the corner chair on the right side. The overall width of a sectional sofa is usually longer than the overall length and tends to fall between 94” and 168” wide.

Other Measurements: The measurements on the interior sides of the sectional as shown in the illustration are important if you’re considering pairing your sectional with a coffee table or other centerpiece, like an ottoman.

Step 1: Measure Your Space

To measure your space for a corner sofa, first record the length, width and height of the room. These measurements will be a baseline for what size sectional will comfortably fit in your space.

It’s also important to measure doorways, hallways and other areas through which the sofa must be carried through when it is delivered. Sometimes, a sectional’s legs can be removed so it can squeeze through narrow spaces, but it’s still good practice to avoid buying a sectional that may not fit through your door.

Step 2: Tape the Area

Once you know how large your room is, choose the spot you’d like to place your corner sofa. It should be wide open and away from high-traffic pathways so the sectional doesn’t obstruct the natural flow of movement throughout your home.

Mark the spot you picked out on the floor with masking or painter's tape. Exact measurements don’t matter here – taping off the space will help you visualize how much space the sofa will occupy in the room. You can remove and re-mark as many times as you need until you’re sure you have a comfortable size and position.

Step 3: Measure the Area

Measure the dimensions of the area you’ve marked. Though it’s unlikely you’ll find a sectional that will perfectly match those measurements, you can use them as a general guide for the sectional size that is best for your room.

If you're considering placing the sofa in front of windows, make sure to measure the height of the window sill. The rule of thumb is that the sofa back should not extend higher than the sill.

Tip: You may want to move your sofa at some point. Before you buy, measure for multiple arrangements to ensure that your sectional can fit comfortably in other positions.