Pick Your Units – Choose whether you’re measuring in millimetres (mm), centimetres (cm), or inches (“).Enter Your Cushion Sizes – Type in the length, width, and depth of your cushion.Need a New Inner? – Choose if you want us to supply a cushion interior or just the cover.Add Extras (Optional) – Add Stockinette or Dacron wrap to make the cushion plumper and easier to fit.Design Your Cover – Pick your cover style and answer a few quick questions.Add Any Notes – Let us know anything extra (e.g. zip position, which side is the front).Add to Cart – Once you’re happy, click Add to Cart.
Once your cover design is in the cart, you’re ready to choose your fabric.
Click the link below to browse our full range:Click Here to See All Fabric Options
Not sure how much fabric you need?Use our Fabric Calculator to work it out easily.
Use this option to create a cover to the sizes entered above
This lightweight foam is a great choice for headboards, crafts, costumes, and a variety of general-purpose projects. It’s easy to work with and perfect for decorative or low impact uses. Just a heads-up: we don’t recommend this grade for seating or any application where it’ll need to support weight regularly.
Medium density firm foam. Suitable for seating perfect for sofas, dining chairs, boats, caravans, and camper van seating and mattresses. Best choice for cushions 3–4 inches thick. May be too firm for cushions above 5” in thickness
Medium-density foam ideal for mattresses 4″ and above. It provides balanced support and comfort, making it a great choice for those seeking a medium-firm sleeping surface. Keep in mind—thicker mattresses offer more support than thinner ones, regardless of foam grade.
Most popular High density firm foam. Suitable for seating perfect for sofas, dining chairs, boats, caravans, and camper van seating and mattresses. Best choice for cushions 3–4 inches thick. May be too firm for cushions above 5” in thickness
RX39/120 Orange Foam CushionsA popular high-density foam with a soft to medium feel. Ideal for achieving a medium comfort level in thicker cushions or a softer feel in thinner ones. Also works well as a top layer over firmer foam to enhance comfort.
High density, medium firm foam Reflex 40h is a high-quality foam known for lasting comfort and support. It bounces back quickly and keeps its shape for years—perfect for sofa cushions, armchairs, or even as a mattress.
High-quality UK-made, heat-sensitive foam that softens and moulds to your body, offering pressure-relieving comfort. Commonly used in mattresses, toppers, pillows, wheelchair cushions, and medical products.
This product is made by laminating RX38 firm blue foam with a 1″ layer of memory foam. It is essential that the total thickness (C) is greater than 1″. If you order this product at exactly 1″ thick, it will consist of memory foam only
This product is made by laminating RX38 firm blue foam with a 2″ layer of memory foam. It is essential that the total thickness (C) is greater than 2″. If you order this product at exactly 2″ thick, it will consist of memory foam only
IMPORTANT GRADE INFORMATION This product combines Reflex 40 medium foam with a 1″ layer of memory foam. If you order at 1″ thick, you’ll receive memory foam only — without the Reflex 40 support layer. To ensure proper comfort and support, the total thickness must be greater than 1″.
IMPORTANT GRADE INFORMATION This product combines Reflex 40 medium foam with a 2″ layer of memory foam. If you order at 2″ thick, you’ll receive memory foam only — without the Reflex 40 support layer. To ensure proper comfort and support, the total thickness must be greater than 2″.
A durable, open-cell foam that resists water, humidity, and chemicals — ideal for outdoor seating and air/water filtration. Its breathable structure also makes it great for humidifiers, ventilation, and industrial filtration systems.
High density firm foam RG50 is a high-density, firm foam ideal for heavy-duty support. It’s commonly used in seat cushions, gym mats, and other applications where durability and strong support are key. This is the perfect foam for thin Pop-top or Roof-Tent mattresses.
Luxury Relex 50 is a high-density, medium firm foam designed for superior support and durability. Ideal for premium seating and high-quality mattresses, this foam is perfect for deep-fill cushions and applications where long-lasting structure and resilience really matter. It holds its shape beautifully, delivering both comfort and strength over time.
High density, medium firm foam Reflex 40h is a high-quality foam known for lasting comfort and support. Bounces back quickly and keeps its shape for years—perfect for as the core for a feather or fibre seat interior
This Foam core feather combination is best suited to those wanting a medium form seat
European 302 de -quilled for extra comfort
Before you order fabric Please send your design to the basket then order fabric
FROM £7.50
Looking to refresh tired cushions or upgrade your seating with something that fits just right? Our Custom Rectangular and Square Cushion Covers are a smart, stylish solution for every setting — whether it’s the family sofa, a campervan bunk, a window seat, or the corner of your boat cabin.
No matter where you use them — at home, on the road, or on the water — these custom cushion covers are made to your exact dimensions. The result? A crisp, professional fit that avoids sagging, bunching, or fiddling. You simply measure, and we do the rest.
To help you get exactly what you want, we offer a variety of styles to suit any space:
Wrap Style – clean and modern, with or without a piped edge
Box Style – sharp, structured edges for a neat and tailored finish
Box with Piping – a classic touch that enhances the overall look
Box Pleat Style – traditional elegance with added detail
Each cover is individually cut and stitched by skilled hands — no off-the-shelf shortcuts here.
If your cushions are looking a little worse for wear, or you’re simply after a better fit, look no further. Our custom-made square and rectangular cushion covers offer a stylish, practical upgrade for almost any setting. Whether you’re updating a sofa at home, a campervan bunk, a caravan seat, or a bench in a boat cabin, we’ve got you covered — literally.
From the living room to the lake, our bespoke covers are designed to suit a wide range of environments. Whether it’s a cosy window seat, a motorhome lounge, or a narrowboat nook, our covers are made to your exact dimensions — no compromises.
Moreover, because every cover is tailored from scratch, there’s no awkward tugging, stretching, or settling for “close enough.” Instead, you get a professional fit that looks sharp and functions beautifully.
To help you get the perfect match, we offer a variety of cover styles. That way, whether you want something sleek and modern or soft and traditional, you’ll find something that fits the bill:
Wrap Style – clean and contemporary, with or without piping
Box Style – crisp, defined edges for a more formal finish
Box with Piping – a timeless look with a bit of polish
Box Pleat Style – adds elegance and structure, great for classic interiors
Each one is individually cut and sewn — so instead of stock sizes and shortcuts, you get top-drawer craftsmanship.
What’s more, we offer a wide range of high-quality fabrics to match your setting. For outdoor or mobile use, such as boats, caravans, and campers, we recommend UV-stable and water-resistant options that can take the elements in stride.
Meanwhile, for indoor seating, you’ll find soft, stylish materials available in a variety of colours and textures — all handpicked for durability and comfort. So, whether you want something hard-wearing or something cosy, we’ve got it.
In addition to the covers, we can also supply foam inserts, cut precisely to size. Choose from high-density firm foams for structured seating, or Reflex foam for a softer, more relaxed feel. So, whether you’re building from scratch or revamping an old favourite, we’ve got everything you need under one roof.
We’ve also thought about the small things — the kind that make everyday use easier:
You can choose from several zip positions, depending on what works best
Add Dacron or Stockinette wrap to give your cushion a fuller, smoother shape
Opt for non-slip bases, tie-backs or Velcro fastenings to keep things in place — especially helpful in boats or moving vehicles
And, of course, all our covers are removable and washable, so keeping them clean is a breeze
On top of that, you can even specify different fabrics for each side — ideal if you like to change the look with the seasons or create a reversible finish.
Let’s be honest: throwing out a perfectly good cushion just because the cover’s worn out is a waste — of money and materials. With our custom covers, you keep what works and replace what doesn’t. As a result, you save cash and avoid landfill — it’s a win-win.
Especially in spaces where cushions are an awkward shape or hard to replace (we’re looking at you, campervans and boat cabins), custom covers are simply the most practical choice.
We’ve made it easy — no faff, no confusion:
Start by choosing your preferred unit of measurement (mm, cm, or inches)
Then enter the cushion’s length, width, and depth
Next, select your preferred style and any optional extras
After that, add any special notes (e.g. zip position, front-facing side, etc.)
Finally, click “Add to Cart” and let us do the rest
Still unsure which fabric to go with? No worries — we’ll happily send out some samples before you commit.
At Foam4U, we combine traditional upholstery know-how with modern materials and methods. Everything we make is built to fit and made to last, with genuine care and attention to detail — the kind you can’t get from off-the-shelf alternatives.
So whether you’re revamping your lounge, refreshing your boat cabin, or fine-tuning your camper interior — our custom cushion covers are the perfect finishing touch.
Proudly designed and hand-finished in the UK.
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