How to Measure a Chaise Lounge for a Cushion: Step-by-Step Guide with Diagrams

Last updated: 2026-09-08

TL;DR: To measure a chaise lounge for a custom cushion, use a rigid tape measure and measure the furniture frame, not your old cushion. Record five things: seat width, seat depth, back height, hinge point, and thickness. Odd sizes like 25.5 inches are no problem. Write your exact numbers in the order notes at checkout, and we cut to the inch.

This is part of our complete guide to chaise lounge cushion replacement.

"Trying to figure out the measurements." That is one of the most common messages we get. And honestly, we get it. Measuring a chaise lounge for a custom cushion feels like it should be simple, until you start wondering whether to measure to the very end of the frame, what to do about the part that folds, and whether your 25.5-inch chair even has an option.

Here is the good news. Once you know the five key measurements, the whole thing takes about ten minutes. And if your chaise has an odd shape, a gap in the middle, or arched backs, we handle those every week. This guide walks you through it, with real examples from customers who were exactly where you are.

The Golden Rule: Measure the Frame, Not the Old Cushion

The single most important rule when measuring for a new chaise lounge cushion is to measure your furniture frame. Never measure your old cushion.

Old cushions stretch, sag, and distort over time. The fabric loosens and the foam compresses unevenly. A cushion that was 24 inches wide five years ago might read 25.5 inches today because the cover stretched. Base your order on that and the new cushion will not fit right.

So set the old cushion aside and measure the bare frame directly. That is the surface your new cushion sits on, and those are the numbers we need. One more thing: use a rigid tape measure (the kind with a metal blade that locks). A soft tailor's tape bends around curves and gives you inaccurate numbers.

What Measurements Do You Need for a Chaise Lounge Cushion?

You need five measurements to order a custom chaise cushion that fits: seat width, seat depth, back height, hinge point, and thickness.

1. Seat width: left to right across the seating area.
2. Seat depth (or length): front edge of the seat to where the back begins.
3. Back height: from the seat break to the top of the back frame.
4. Hinge point: where the cushion folds when the lounger reclines.
5. Thickness: how thick you want the cushion (more on this below).

Seat Width

Place the tape across the seat from left to right at the widest point. If your chaise has arms, measure the space between them. If it has no arms, measure the full width of the seat frame.

Seat Depth (Length)

Measure from the front edge of the seat to where the back support begins. On chaise lounges this is often 45 inches or more, which is why it is sometimes called seat length. If your chaise is one continuous surface, measure from the foot end to where you want the back cushion to start.

Back Height

Measure from where the back meets the seat up to the top of the back frame. If your seat and back are separate pieces (not hinged together), subtract the thickness of your seat cushion from the back height so the back does not stick up above the frame. This only applies to two-piece sets, not hinged one-piece designs.

Hinge Point

Find the crease or joint where your chaise folds when it reclines, and measure its distance from the foot end. This matters more than people expect. If the fold sits two inches off, the cushion bunches or gaps when you recline.

Thickness

Most chaise cushions land at 3 to 4 inches, though we cut anywhere from 2 up to a plush 6 to 8 inches. If you want the full breakdown of thickness and which foam actually lasts, see our guide to the best foam for chaise lounge cushions. For most frames, matching your old cushion's thickness keeps the seat flush with the armrests.

Once you have all five, double-check each one. Measure twice, order once. Then head to the custom chaise lounge cushion page and enter your numbers in the order notes.

Standard Chaise Lounge Dimensions (for Reference)

People often search for standard chaise dimensions before they measure, just to sanity-check their own numbers. Treat these as typical ranges, not a substitute for measuring your frame. Every chaise is a little different, which is exactly why stock cushions so often miss.

For context, furniture reference site Dimensions.com lists a typical outdoor chaise at about 78 inches long, and design guides at The Spruce note that the cushion, not the frame, is what makes a lounger comfortable. If your numbers fall outside these ranges, that is fine. We build to your measurements, not to a chart.

What If My Chaise Has an Odd Shape or a Gap?

Not every chaise is a simple rectangle. Some have arched backs, tapered seats, or split backs for double loungers. Some fold with a gap at the hinge. We handle all of these, and the process is the same: send measurements plus photos, and we draw a labeled diagram for you to approve before production.

Mary Grace from California needed cushions for a double chaise with two separate arched-top backs. The seat was 50 inches wide by 54 inches deep, and each back was 23 inches wide by 29 inches tall with a rounded arch. Standard measurements alone could not capture that arch, so she sent photos, we marked each point on a diagram, and she confirmed before we cut.

Kelly from California had a folding sofa that opens into a chaise. Her seat measured 51 inches, then a 1-inch gap at the hinge, then a 26-inch back, for 78 inches total. Her question was natural: do I subtract the gap? The answer is no. Measure the full 78 inches, then note the gap in your order ("1-inch gap at 51 inches from the foot end"), and we design the cushion to sit flat across it.

If your lounger folds often, then consider a two-piece cushion split at the hinge so each piece folds on its own. If you mostly use it flat, then a single piece works great.

Non-Standard Sizes: What If My Chaise Is 25.5 Inches Wide?

We make cushions in any size, including half-inches and unusual lengths like 76.75 inches. If you can measure it, we can make it. The size dropdown on the product page only shows whole numbers as a starting point, not a limit.

This trips people up. Cindy from California needed 25.5 inches. Glynda from Florida needed 24 inches and was not sure it was possible. Marcia from North Carolina told us flat out, "the link you sent me does not let me put in the correct size." Every time, the answer is the same: yes, we can do that.

Here is how. Select the closest size in the dropdown as a placeholder, then write your exact dimensions in the order notes, like "actual width 25.5 inches, length 76.75 inches." Prefer to confirm first? Contact us and we will set up a payment link with your exact specs already entered. For more on this, see our guide to custom size chaise lounge cushions.

Not for You If...

Custom measuring works for almost every chaise, but a couple of cases need an extra step first:

• You are not confident in your numbers. Order a fabric sample and re-measure before you commit, since custom cushions are made to your spec and cannot be returned for a sizing error.
• Your chaise has a complex curved or convex shape. Send photos from a few angles first so we can draw and confirm the shape before cutting.
• You want the cushion to stay put on a slick frame. Measuring is step one; see our guide on keeping a chaise cushion from sliding for ties and grip options.

After You Measure

You have your five numbers. Now head to the custom chaise lounge cushion page, pick your fabric, select the closest size, and write your exact measurements in the order notes. Add a photo for anything unusual. If you catch a mistake, contact us within 48 hours and we adjust for free before production starts.

Whether your chaise is 22 inches wide or 54, flat-backed or arched, we cut it to fit. You can also browse the full range of chaise lounge cushions or follow the step-by-step hinged chaise measuring guide if your lounger folds. Hope this makes ordering the easy part.

Written by the USCushion Team.

Frequently Asked Questions

Should I measure to the very end of the chair frame or leave an inch or two?

Measure the actual frame, edge to edge. That gives us the true surface your cushion sits on. If you would rather the cushion stop an inch short of the edge, just note that preference in your order. When Larry from Florida asked this, our answer was the same: give us the full frame measurement and tell us your preference in the notes.

My chaise has a gap where it folds. Do I subtract the gap?

No. Measure the total usable length including the gap, then note the gap size and location in your order (for example, "1-inch gap at 51 inches from the foot end"). We design the cushion to sit naturally across the full surface without sagging at the fold.

Can I order a chaise cushion in a non-standard size like 24 or 25.5 inches?

Yes. We make any size, including half-inches and odd lengths. Select the closest option in the dropdown and write your exact numbers in the order notes, or contact us for a custom payment link.

How thick should a chaise lounge cushion be?

Most chaise cushions are 3 to 4 inches, which suits the low lounger profile, and we cut up to 6 to 8 inches for a plush, resort feel. For the full thickness and foam breakdown, see our chaise foam guide.

How do I measure a double chaise lounge with split backs?

Measure the seat area as one piece (width and depth), then measure each back section separately for width, height, and shape. If the backs are arched or rounded, send photos from the front and side, and we create a labeled diagram for your approval.