Measuring a couch for a pet cover requires three external dimensions — overall width, depth, and height — plus any arm, cushion, or sectional measurements the brand’s sizing chart specifically asks for.
For the full breakdown, see our best Couch Covers for Pets guide.
A pet cover that fits poorly slides off, bunches up, and leaves your couch exposed. The fix isn’t complicated, but the most common mistake sinks half the attempts: people measure only the seat cushions and skip the arms and outer frame. Get the full outside dimensions once, check the brand’s chart, and you’ll order the right size on the first try.
What You’ll Need and Where to Start
Grab a tape measure, clear the floor around the couch, and pull it a few inches away from the wall so you can reach the outer edges. Remove the cushions only if the sizing guide you’re using asks for separate cushion measurements — otherwise leave them in place, because the cover needs to fit the couch’s full structure, not just the seat surface.
Write down every number as you go. A single forgotten arm width is the difference between a taut fit and a drifting mess.
The Three Core Measurements
Width. Measure from the outermost left edge to the outermost right edge, including both arms. Do not measure from the inside of the arm — the cover has to wrap around the whole structure. If one arm is wider than the other (common on chaise-style sofas), use the widest overall measurement.
Depth. Measure from the front-most point of the couch (usually the front edge of the seat cushion or the front of the arm) straight back to the rear-most point — typically the back of the backrest, not the back cushion seam. For couches with thick bolsters or curved backs, measure to the outermost surface.
Height. Measure from the floor straight up to the highest point of the couch — usually the top of the backrest. If your cover includes a skirt or dust ruffle that reaches the floor, the height measurement ensures the skirt hangs correctly without dragging or leaving a gap.
At this point, if the pet-cover brand’s sizing chart only asks for width and depth, you have what you need. Compare your numbers to the chart and pick the size that matches — or, if you’re between sizes, choose the closer match that fits the brand’s sizing rule, then check the return policy so you’re covered if the fit is off.
Extra Measurements Some Charts Require
Many pet-cover manufacturers — Snoozer is a good example — ask for more than the three core numbers. Their Snoozer Sizing Guide details these additional dimensions when a cover has a fitted shape or separate arm flaps. Check their guide before you measure:
| Measurement | Where to Measure It |
|---|---|
| Seat cushion width | Side to side across the cushion surface (not including arms) |
| Seat cushion depth | Front edge of cushion to the backrest |
| Cushion thickness | Top of cushion to the top of the couch frame beneath it |
| Arm width | Outside edge of arm to inside edge of arm |
| Arm height | Bottom of arm (where it meets the seat) to the top of arm |
| Skirt height | Bottom of couch frame to the floor |
| Base height | Floor to the bottom of the couch frame (under the cushions) |
Only measure what the brand’s actual chart asks for. Measuring extra dimensions won’t hurt, but skipping one the chart requires guarantees the wrong size.
Common Mistakes That Wreck the Fit
Measuring only the seat cushion area is the number-one error and the most expensive one — it leads to a cover that stretches tight over the cushions but leaves the arms and frame exposed. Other frequent misfires: measuring from the inside edges instead of the outermost edges; forgetting to account for a skirt when the cover includes one; and assuming a “standard sofa size” fits a sectional or recliner without checking the brand’s specific dimensions.
For sectionals, measure the widest single section for width and the deepest section for depth. If the shape is irregular — an L-shape with a longer chaise — some brands want two separate size orders. Check the chart first so you don’t order one cover that covers half the couch.
FAQs
Should I leave extra room for a relaxed fit or order exact?
Most pet covers are designed to fit snugly over the couch’s outer dimensions, so order the exact match from the brand’s chart. Some manufacturers recommend 1–2 inches of breathing room for easier installation, but this varies — check the brand’s own sizing notes before deciding.
What if my couch has a curved back or oversized arms?
Measure the outermost point of the curve or arm, not the front face. A curved back may add several inches to the true depth, and wide arms add to the width. Use the dimension that covers the widest or deepest point, even if that point is only the outer edge of a protruding arm.
Does measuring the same way work for recliners and loveseats?
Yes — the same three external dimensions (width, depth, height) apply. Recliners may need an extra check on depth when the footrest is extended, and loveseats use the identical process but usually land in a small or medium size. Always cross-check with the brand’s chart for the specific product category.
References & Sources
- Snoozer Pet Products. “Snoozer Sizing Guide.” Details additional measurements (arm, cushion, skirt) for pet covers.
- Coverstore. “How to Measure a Sofa or Loveseat.” Describes the external width, depth, and height method.
- Wayfair. “How to Measure for a Slipcover.” Explains common fitting errors and sectional measurement rules.
