How to Cover a Chaise or Sectional Sofa Section: Step by Step

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L-shape corner sofa with a chaise dressed in a tailored microfibre stretch cover in a calm living room

How do you cover a sofa with a chaise? Section by section, not with one cover. Count the upholstered units (one for each seat run, corner and chaise), match each to its size and its left or right hand orientation, then fit the chaise along its full length and tuck the joins between sections closed.

See your sofa as sections, not one piece

The single mental shift that makes everything easier: a chaise or sectional sofa is covered per section, not with one giant cover stretched over the whole shape. Individual section covers fit far better, wash more easily, and let you replace just one piece if it ever needs it.

Walk around the sofa and identify its parts. Most chaise and sectional sofas are made of some combination of these:

  • Seat sections, the standard upholstered seats, the same as a straight sofa.
  • A corner unit, the square section where two runs meet at a right angle.
  • A chaise, the extended seat with no arm at the far end, the part you stretch your legs along.
  • An armless or middle unit, on modular sofas, a seat with no arm on one or both sides.

Count the units, not the cushions

Counting is where most mistakes happen, so do it deliberately. Walk the sofa end to end and count every distinct seating unit, including the chaise and any corner.

Example layout Sections Covers needed
Straight run plus a chaise Run + chaise 2 covers
L-shape: run, corner, chaise 3 sections 3 covers
U-shape: two arm-runs + chaise 4 sections 4 covers

The reliable rule: count the upholstered units, not the cushions. A three-seat section has three cushions but is still one section needing one cover. If you are unsure where one section ends and the next begins, look at the underside or the seams. For the full shape-by-shape breakdown, see our corner and sectional sofa covers buying guide.

Read the orientation: left hand vs right hand

The chaise has a direction, and getting it wrong is the most common ordering mistake on a sectional. Stand and face the sofa as if you are about to sit on it. Look at which side the chaise extends to:

  • Chaise on your left = a left-hand chaise.
  • Chaise on your right = a right-hand chaise.

A chaise section is not symmetrical: it has an arm on one side and an open end on the other, so a cover cut for a right-hand chaise will not sit correctly on a left-hand one. Read it from the facing position, the way you naturally sit down.

Covers for chaise and sectional sofas

These smooth stretch covers are cut for sectional runs and match each part of your sofa in one clean tone. Tap any cover to choose your size.

See the full stretch sofa covers range, each listed with its measurement range so you can match the chaise to its size and orientation.

Fit the chaise section

Fitting the chaise follows the same drape, tuck, settle method as any seat, with two small differences because of the open end and the longer seat.

  1. Drape the cover over the chaise so its seams roughly line up with the chaise's own, the back, the seat and the single arm.
  2. Square the open end first. The open, armless end is the edge most on show. Pull the cover snug over it and smooth it down so it wraps cleanly.
  3. Tuck the back-to-seat seam deep into the gap along the full length of the chaise. The seat is longer than a standard one, so work the whole run, not just the middle.
  4. Tuck the arm seam on the side that has an arm, exactly as on a standard seat.
  5. Smooth the long seat panel from the back forward and from the arm toward the open end, pushing slack out to the seams and the open edge.

Where the chaise meets the next section

The join between the chaise and the seat section beside it is the spot that can gap if rushed. Fit the seat section first, then the chaise, and at the join push the edges of both covers down into the gap between the two frame units so they tuck into the same crease. A foam rod pressed into that gap holds the join closed on a slick or busy sofa. Done well, you cannot tell where one cover ends and the next begins. For the full fitting sequence, follow our how to fit a stretch sofa cover guide.

Measure the chaise correctly

A chaise is longer than a standard seat, so its measurements are the ones most often guessed wrong. Measure it as its own unit: the width across the seat, the depth from the back all the way to the open end (the long measurement people underestimate), and the height. Note which side the arm is on while you are there, that confirms the orientation. The full method is in how to measure a sofa for a cover.

Refresh a complicated, much-loved sofa one section at a time.
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Frequently asked questions

Can one cover fit a whole sectional with a chaise?

No, chaise and sectional sofas are covered per section, not with a single cover. Each seat run, corner unit and chaise gets its own cover. Individual section covers fit far better, wash more easily, and let you replace just one piece if needed.

How do I know if I have a left-hand or right-hand chaise?

Stand and face the sofa as if you are about to sit on it. If the chaise extends to your left, it is a left-hand chaise; to your right, it is a right-hand chaise. The chaise is not symmetrical, so the cover must match the orientation.

How many covers do I need for an L-shape sofa with a chaise?

Count the upholstered units. A typical L-shape with a three-seat run, a corner and a chaise needs three covers, one per section. Count the frame units, not the cushions.

How do I fit a cover on the open end of a chaise?

Square and smooth the open end first, pulling the cover snug over it so it wraps cleanly, then tuck the back and arm seams. The open end is the most visible edge, so fitting it first keeps it from looking slack.

How do I stop a gap where the chaise meets the next section?

Fit the seat section first, then the chaise, and push the edges of both covers into the gap between the two frame units so they tuck into the same crease. A foam rod in that gap holds the join closed on a slick or busy sofa.

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EC
Emily Carter
Emily writes the Covaba journal, helping owners refresh sofas they already love with the right cover, fit and fabric.