How to Accurately Measure Your Cushion for Foam Replacement (Avoid Costly Mistakes)

Ordering foam replacement couch cushions or foam cushion replacements might seem simple. Just measure and go, right? Not quite. Get the measurements wrong, and you risk ending up with cushions that are too loose, too tight or just plain uncomfortable.

At The Foam Cushion Store, we specialise in custom cut replacement foam cushions for sofas, chairs, benches and just about any other piece of furniture you can think of. Our foam is premium quality, cut exactly to your requirements and delivered across the UK. But to get that perfect fit, measuring correctly is absolutely essential.

Here’s how to do it right the first time, and avoid wasting time and money on returns or poor results.

Why Accurate Measurements Matter

Cushions that are even slightly off in size can affect both comfort and appearance. Foam that’s too small won’t fill the cover properly, leading to sagging and unevenness. Foam that’s too large will bunch up or even tear seams. For a snug fit and a professional finish, your measurements need to be exact.

That’s where we come in. When you give us the right measurements, we deliver custom cut replacement foam cushions that are precision-cut and ready to use.

Step 1: Remove the Old Foam

Always start by removing the existing foam from the cushion cover. Measuring the foam itself is more accurate than measuring the cover because fabric can stretch or shrink over time. If the old foam has lost its shape or broken down, use the cover as a backup — but only after carefully smoothing it out.

Step 2: Measure Width, Depth and Thickness

Using a firm tape measure (not a flexible sewing tape), record the following:

• Width: Side to side at the widest point
• Depth: Front to back, also at the widest point
• Thickness: From top to bottom

Measure to the nearest millimetre and double-check every number. If your cushion has curves or tapers, note those details so our experts can cut your foam accordingly.

We offer custom cut shapes for all types of chairs, so whether it’s a straight bench, a round-backed armchair or something unusual, we can match it.

Step 3: Add a Little Compression

For seat cushions, we recommend adding an extra 10 to 20 millimetres to the thickness. Why? Foam compresses when you sit on it, and this bit of extra height helps the cushion fill the cover snugly and look full.

This tip is especially useful for sofa seat cushions and other high-use areas where you want both comfort and a tight fit.

Step 4: Identify the Shape

If your cushion isn’t a perfect rectangle, that’s no problem. We cut replacement foam cushions in all shapes including T-shapes, L-shapes, trapezoids and more. Simply provide a clear description or a drawing with labelled measurements. You can even send us a paper template for tricky shapes.

Our foam specialists will match it exactly. Choose the exact size and shape of your foam cushions and we’ll deliver it to your door.

Step 5: Choose the Right Foam Type

Different uses call for different foam densities. A soft back cushion feels great but won’t hold up as a seat. A high-density foam makes a great supportive base for sofas or benches.

Not sure what to pick? Need help finding the right custom-made foam? Ask our experts about foam cut to size. We’ll guide you to the best choice based on how the cushion will be used, your comfort preferences and the type of furniture.

Step 6: Double-Check Before You Order

Always review your measurements before placing your order. Make sure you’ve included any necessary adjustments and noted the correct shape and corners. A few extra minutes here can save you days of hassle later.

If you’re ever unsure, give us a quick call or send over a message. We’re happy to talk you through the process.

UK Nationwide Delivery on Custom Cut Foam

Once your measurements are in, we do the rest. Our team will cut your foam precisely to size and shape and send it straight to your door. We offer fast UK nationwide delivery, so you’ll have your new foam cushion replacements in no time.

It’s the easiest way to bring new life to tired furniture and get that perfect, tailored look.

Foam for Cushions — Cut to Size for a Range of Uses

From indoor sofas to outdoor benches, caravan cushions to window seats, our custom cut foam can be used just about anywhere. We cut foam for:

• Sofas and couches
• Chairs and recliners
• Benches and booths
• Campervans and caravans
• Garden seating
• Boat cushions
• Mattresses and daybeds

You name it, we cut it. Cut-to-size foam for sofas, benches, chairs and much, much more.

Premium Foam Cut to Order for Sofas, Chairs and More

Is your sofa sagging? Is your favourite armchair going flat? Our custom cut replacement foam cushions are made to your exact dimensions, giving you the perfect balance of comfort, support and fit. We use only high-quality foam designed to last, so you can extend the life of your sofas, chairs, cushions, couches and upholstered furniture with confidence.

No more wrestling with ill-fitting inserts or cheap foam that collapses in months. Just premium foam that fits your space, your needs and your budget.

Ready to Order Your Custom Cut Foam?

You’ve got the measurements. We’ve got the foam. Let’s do this. Order your replacement foam today from The Foam Cushion Store and get it custom cut, carefully packed and shipped straight to your home with UK nationwide delivery.

Want help? Just ask. Our foam experts are ready to guide you to the perfect fit.