Sofa Cover Size Guide: How to Measure & Choose
Our stretch sofa covers are sold as individual pieces for each part of your sofa — seat cushions, backrests, chaise, headrest, and pillows. This guide shows you exactly how to measure each section and match it to the right size, so your covers fit smoothly with no guesswork.
How to measure your sofa
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1. Measure the width
Measure the widest point of the cushion or section from left to right, in inches. This is the number you'll match to the size chart below.
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2. Measure the depth / height
For seat cushions, measure the depth (front to back). For back cushions, measure the height. Check it falls within the range shown for your size.
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3. Count your sections
Count each seat cushion, back cushion, chaise, headrest, and pillow separately. You'll order one cover per section — for example, three Seat Covers and three Back Covers for a 3-seat sofa.
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4. Match & order
Match each measurement to the size chart below, then add the matching cover for each section — all in the same color for a seamless look. Prefer to skip the math? Use the “Find my size from measurements” tool on any sofa cover product page.
Size chart (inches)
Match your measurement to the size. Ranges use the widest measurement unless noted.
| Cover | Size | Fits (widest point) | Depth / height |
|---|---|---|---|
| Seat Cover | S | 25.6–35.4″ | 25.6–35.4″ |
| M | 35.4–45.3″ | ||
| L | 45.3–57.1″ | ||
| Back Cover | S | 23.6–31.5″ | 15.7–21.7″ |
| M | 31.5–39.4″ | ||
| L | 39.4–47.2″ | ||
| Chaise Cover | M | 63–74.8″ long | 25.6–47.2″ |
| L | 63–74.8″ long | ||
| Headrest Cover | M | 15.7–31.5″ | 7.9–15.7″ |
| Pillow Cover | M | 15.7–17.7″ | 15.7–17.7″ |
Still unsure? Email support@slickinterior.com with your measurements and we'll tell you exactly which covers to order. Every order is protected by our 365-day money-back guarantee, so you can adjust risk-free.
Example: what a 3-seat sofa needs
A typical 3-seat sofa with 3 seat cushions, 3 back cushions, and 2 armrests would use: 3 Seat Covers + 3 Back Covers in your chosen size and color, plus optional Pillow Covers for any accent cushions. Measure each cushion to confirm the size, as sofas vary.