How to Measure for Chaise Lounge Cushions

Chaise lounge cushions can be tricky to replace because the frame has a hinge where the back adjusts. Cushion thickness can also affect how the chaise feels when sitting or reclining. Even chaise lounges that look similar can have different measurements.

To make sure your replacement chaise lounge cushion fits properly, stays aligned at the hinge, and feels comfortable in both upright and fully reclined positions, always start by measuring the chaise lounge frame.

This guide explains how to measure:

• Boxed chaise lounge cushions, including Cascadia’s style with a fabric flap connecting the seat and back

• Universal chaise lounge cushions with a sewn hinge

• Two-piece chaise cushions, with separate seat and back cushions

We’ll also cover common measuring mistakes, especially an important one:

The back cushion sits on top of the seat cushion. Because of this, the back cushion measurement must account for the overlap at the hinge.

Identify Your Chaise Cushion Style

Before taking measurements, first identify the type of cushion that best matches your chaise lounge frame and the style you want.

1. Boxed Chaise Cushion with Fabric Flap — Seat + Back Connected

Cascadia’s boxed chaise cushion has a fabric flap at the hinge that connects the seat and back sections. It allows the chaise back to adjust while helping keep the cushion sections together and aligned.

This style provides a custom, upholstered look and helps prevent the cushions from sliding apart.

Best for: Upscale chaise frames, customers who want a custom and finished appearance, and anyone who wants to keep the cushions from separating.

2. Universal Chaise Cushion with Sew-Down at the Hinge — Connected

This universal style uses a sewn hinge, or “sew-down,” that creates a fold point where the chaise back adjusts.

Best for: Common chaise designs with a predictable hinge location and customers looking for a simpler cushion fit.

3. Two-Piece Universal Chaise Cushions — Separate Seat + Back

This style consists of two separate cushions—one for the seat and one for the back. It can work well when the chaise frame has an unusual hinge design or when a single connected cushion would be difficult to fit.

Best for: Chaises with unusual hinge geometry, frames with arms that affect the cushion shape, and customers who prefer cushions that are easier to handle and store.

What You’ll Need

• Tape measure — a metal tape measure is preferred

• Notepad or phone — for recording your measurements

• Painter’s tape (optional) — useful for marking the hinge location

• Helper (optional) — helpful when taking long measurements

Whenever possible, measure the chaise lounge frame instead of the old cushion. Old cushions can stretch, compress, or may not have been the correct size originally, which can lead to inaccurate measurements.

Find the Chaise “Hinge Break” — Critical

The most important measurement on a chaise lounge frame is the hinge break. This is the exact point where the back section begins to recline.

How to Find the Hinge Break

1. Place the chaise in the flat position (fully reclined).

2. Find the pivot point where the frame bends and the back section begins to lift.

3. If helpful, use painter’s tape to lightly mark the hinge location.

Record the measurement as:

Hinge Location = ______ inches from the top (or from the bottom)

Why This Matters:

The hinge location must match the cushion’s hinge, seam, or fabric flap. If these points do not line up, the cushion may buckle, shift, or feel like it is resisting the frame when you adjust the chaise.

Measure the Overall Cushion Size — Length + Width

1. Overall Length — Top to Bottom

Measure from the very top of the chaise, where the cushion will begin, to the very bottom, where the cushion will end.

Overall Chaise Cushion Length = ______ inches

Tip: Some chaise frames have a curved top or rolled edge. Measure the usable flat area where the cushion will sit, not any decorative frame overhang.

2. Width — Side to Side

Measure the usable width of the chaise bed:

• No arms: Measure from one edge of the bed to the other.

• With arms: Measure the space between the arms and note if the frame gets narrower or wider along the length.

Chaise Width = ______ inches

Arm Note: If the chaise has arms, determine whether the cushion will sit inside the arms (most common) or on top of the side rails.

Measure the Seat and Back Sections Separately

Even if you are ordering a connected chaise cushion, measure the seat section and back section separately. The hinge location is important because it determines how the cushion will fold and adjust with the frame.

1. Measure the Seat Section

Measure from the bottom edge of the chaise bed up to the hinge break.

Seat Section Length = __________ inches

2. Measure the Back Section

Measure from the hinge break up to the top edge of the chaise bed.

Back Section Length = __________ inches

The Overlap Rule — Common Error

One of the most common causes of poor-fitting chaise cushions is incorrect overlap at the hinge.

The back cushion sits on top of the seat cushion where they meet at the hinge. When ordering a two-piece chaise cushion (separate seat and back), you need to account for this overlap.

If you do not, you may end up with:

• A gap at the hinge when sitting

• A back cushion that is too long and pushes upward

• A hinge that does not recline smoothly

How to Account for Overlap

• Decide how much overlap you want where the back cushion meets the seat cushion. This is typically 1"–3", depending on the cushion thickness and design.

• When determining the back cushion length, remember that it rests on top of the seat cushion rather than extending all the way down to the frame.

Practical Measuring Tip

Even if your frame measurements are accurate, two separate cushions may not fit properly if you do not account for the overlap at the hinge.

Without the proper overlap, you may end up with a visible gap at the hinge or the cushions may interfere with each other at the break point.

Choose Cushion Thickness Based on Chaise Bed Height

Cushion thickness affects more than just comfort—it also affects how easy and comfortable the chaise is to use. The goal is to make it easy to:

• Sit down comfortably

• Swing your legs up

• Recline without feeling too low or “sunk in”

• Avoid sitting too high or feeling perched above the chaise

Measure the Chaise Bed Height

Measure from the ground to the surface of the chaise bed, where the cushion will sit.

Chaise Bed Height (ground to bed) = ______ inches

Cushion Thickness Guidelines

• 3"–4" thick: A common, slimmer profile that works well when the chaise bed is higher off the ground.

• 5"–6" thick: Provides more comfort and supportive cushioning.

• 7"–8" thick: Best suited for a low chaise bed when you want a softer, more mattress-like feel.

Lower chaise beds can accommodate thicker cushions while still providing a comfortable, natural seating height. On the other hand, higher chaise beds with very thick cushions may feel too tall or elevated.

Confirm Finished Height — Ground to Top of Cushion

This measurement helps you determine the final sitting height of the chaise.

1. Chaise bed height (ground to bed): __________"

2. Add chosen cushion thickness: __________"

3. Finished height (ground to top of cushion): __________"

Why It Matters

The finished height should feel comfortable and natural when sitting down and getting up. This is especially important for older guests, frequently used furniture, or commercial spaces.

Check for Arms, Curves, and Taper

Some chaise lounge frames may have:

• A wider top and narrower bottom, or the opposite

• Curved side rails

• Arms that affect the cushion shape

If Your Chaise Has Arms

• Measure the width between the arms.

• Note the arm position in relation to the hinge.

• Check whether any ties could rub against the arm joints.

If Your Chaise Tapers

Measure the width at three points:

• Top

• Hinge

• Bottom

Use the narrowest usable width to help prevent the cushion from binding or fitting too tightly.

Tie Placement and Keeping the Cushion Aligned

Chaise cushions can shift or slide over time because of their long surface and the movement of the reclining back. Properly placed ties or Velcro straps can help keep the cushion securely in place.

Tie Placement Tips

• Seat ties: Help anchor the bottom of the cushion and prevent it from sliding downward.

• Hinge-area ties: When possible, help keep the cushion from shifting as the back is adjusted.

• Back ties: Help keep the top section aligned, especially on armless chaises.

If your chaise has arms or hardware near the hinge, make sure the ties are positioned where they won’t snag, rub, or interfere with the reclining mechanism.

Frame Measurements

Overall length (top to bottom): __________"

Width (side to side): __________"

Hinge location (from top or bottom): __________"

Seat section length (bottom to hinge): __________"

Back section length (hinge to top): __________"

Chaise bed height (ground to bed): __________"

Cushion Details

Cushion style: Boxed with flap / Universal sewn hinge / Two-piece seat + back

Thickness: __________"

Finished height (ground to top of cushion): __________"

Piping: Yes / No

Ties: Fabric / Velcro / None

Arms: Yes / No
If yes, measure between arms: __________"

Extra Tips to Make Measuring Easier and Avoid Mistakes

• Place the chaise fully flat when measuring to get the most accurate overall lengths.

• Mark the hinge break with tape so you can easily identify it throughout the measuring process.

• If the frame is curved or contoured, measure twice. Curves can cause the tape to shift and lead to inaccurate measurements.

• If the old cushion never fit properly, rely on the frame measurements rather than the old cushion when ordering a replacement.