Pick Your Units – Choose whether you’re measuring in millimetres (mm), centimetres (cm), or inches (“) and enter your sizes 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 £10.00
When it comes to awkward back cushions — especially left-hand facing (LHF) straight mitred corners — forget trying to make a standard cover fit. These aren’t your average square pads. They’re angled, asymmetric, and hard to shop for. But don’t worry — we’ve got the perfect solution.
Introducing our made-to-measure LHF Straight Mitred Corner Back Cushion Covers — crafted to your exact dimensions, tailored to follow every angle, and built to fit like a glove.
So whether you’re completing a fitted seating area in your home, refreshing the back cushions in your camper, or revamping your boat’s saloon, we’ll deliver the finish that looks — and feels — right.
LHF straight mitred cushions can be a headache. One side runs long, the other turns off at a precise mitred angle. It’s a shape that throws standard covers completely off.
That’s why we work to your exact spec — no guessing, no shortcuts. We cut your cover based on precise measurements, including the angle of the mitred join, the cushion’s back edge, and overall depth.
As a result, your cushion sits flush, looks sharp, and stays put, with no tugging, bulging or makeshift solutions. Compared to generic covers, it’s a world apart.
Once we’ve locked in the fit, it’s time to get the style right. After all, a perfect-fitting cushion deserves a finish that matches its surroundings.
Choose from four time-tested styles:
Wrap Style – clean, minimal, ideal for modern settings
Box Style – structured and sharp, great for built-in seating
Box with Piping – adds that tailored, traditional edge
Box Pleat Style – elegant and classic, adds depth and form
Whichever you choose, your cover is made to order by skilled craftspeople, right here in the UK — cut, stitched, and finished by hand.
Once the shape and style are sorted, the fabric ties it all together. Your LHF mitred cushion might live in a high-traffic kitchen nook, a sun-drenched saloon, or a high-humidity camper corner — so picking the right material matters.
For boats, caravans, and outdoor setups, go with our UV-stable, water-resistant fabrics — designed to handle damp, direct sun, and daily wear.
For indoor comfort, choose from our handpicked range of plush velvets, woven cottons, or hardwearing synthetics.
Want a reversible cover? No problem — you can even choose different fabrics for each side to suit your mood or the season.
Not sure which fabric is best? We’ll send you free samples — so you can see and feel before making a choice.
There’s no point covering foam that’s already past it. That’s why we also offer custom-cut foam inserts — shaped to match your LHF mitred layout perfectly.
You can select from:
High-density foam – for firm, supportive seating
Reflex foam – for a softer, more relaxed feel
Additionally, we can wrap your foam in Stockinette or Dacron, which not only makes it easier to insert but also gives your cushion a plump, smooth finish.
We believe the small details make the biggest difference. That’s why every cover comes with optional extras to enhance usability and performance:
Choose your zip placement for easy access and maintenance
Add a non-slip base — ideal for moving vehicles, boats, or slippery seating
Include Velcro tabs, ties, or fasteners for added security where needed
And yes — every cover is fully removable and washable, so cleaning is straightforward.
Let’s face it: replacing a full cushion just because the cover’s worn is a waste — especially with shaped or fitted seating. Instead, a made-to-measure LHF mitred cushion cover lets you refresh what’s tired without tossing what still works.
It’s cost-effective, environmentally sound, and easier than starting from scratch — especially when finding a replacement is near impossible.
We’ve made the process as clear as possible. To order your LHF Straight Mitred Corner Back Cushion Cover:
Choose your units — millimetres, centimetres, or inches
Enter your cushion’s lengths, widths, depths, and layout details
Select your style, fabric, and any extras
Add any special instructions — e.g. zip location, front-facing side, reversible fabric
Click “Add to Cart” — and we’ll take care of the rest
Need help along the way? Get in touch — we’ll walk you through it.
At Foam4U, we’ve been making custom cushion covers long enough to know: it’s not about guesswork — it’s about getting it right.
We combine traditional upholstery techniques with modern materials and precision cutting, delivering a product that’s fit-for-purpose and made to last.
So whether you’re updating your kitchen bench, kitting out your camper, or adding polish to your boat’s seating — our LHF Straight Mitred Corner Back Cushion Covers are the finishing touch that ties it all together.
Made to measure.Made to last.Made in the UK.
Our sister website www.thefoamshop.co.uk
© 2025 Foam 4 U | Sitemap | Privacy Policy | Web Design by Dexterous Designs Ltd