Sloped Back Cushion Cover

Boxed & Piped Cushion with Foam & Dacron
Boxed & Piped Cushion with Foam & Dacron

How to Order  Equal-Sided Taper Cushion Covers (Made Easy)

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.

Now Choose Your Fabric

Once your cover design is in the cart, you’re ready to choose your fabric.

 

Measurements

Measurements

Reference Image

choose your cushion filling

COVER ONLY (NO FOAM)

Use this option to create a cover to the sizes entered above

BUDGET LIGHTWEIGHT FOAM V28

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.

Grade
V28
Density
28 kg / m3
Properties
Flame Retardant
Not Suitable For Seating

STANDARD FIRM RX33 (BLUE)

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  

Grade
RX33
Notional Hardness
200 N
Density
33 kg / m3
Properties
Flame Retardant
Firm, Medium Density Foam

STANDARD MEDIUM FIRM MATTRESS FOAM RX36/125

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.

Grade
RX36/125
Notional Hardness
125 N
Room Temp. Hardness
125 N
Density
36 kg / m3
Properties
Comfort level: MEDIUM FIRM for mattresses above 4" (`10cm ) in thickness
Density: MEDIUM

PREMIUM HIGH FIRM RX39 (BLUE)

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

Grade
RX39/200
Density
39 kg / m3
Properties
Flame Retardant
Highly Recommended Firm Seating & Mattress Foam

PREMIUM MEDIUM FIRM RX39 (ORANGE)

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.

Grade
RX39/120
Notional Hardness
120 N
Density
39 kg / m3

PREMIUM MEDIUM FIRM REFLEX 40H (GREY)

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.

Grade
REFLEX 40 H
Notional Hardness
150 N
Density
40 kg / m3
Properties
Flame Retardant
Highly Recommended, High Density, Medium Firm, Seating & Mattress Foam

VASCO 50 MEMORY FOAM (WHITE/ YELLOW)

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.

Grade
VASCO 50
Notional Hardness
65 N
Density
50 kg / m3
Properties
Flame Retardant

RX39 FIRM / MEMORY FOAM 1" (2.5cm) COMBO

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

Grade
RX39 / Memory Combo
Density
40 kg / m3
Properties
Flame Retardant

RX39 FIRM/ MEMORY FOAM (2") COMBO

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

Grade
RX39 / Memory Combo
Density
40 kg / m3
Properties
Flame Retardant

MEDIUM FIRM REFLEX 40 / MEMORY 1" COMBO

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″.

Grade
Reflex 40
Notional Hardness
135 N
Room Temp. Hardness
135 N
Density
40 kg / m3
Properties
Flame Retardant

MEDIUM FIRM REFLEX 40 / 2" MEMORY COMBO

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″.

Grade
Reflex 40 H / v50
Notional Hardness
135 N
Room Temp. Hardness
135 N
Density
36 kg / m3
Properties
Flame Retardant

30PPI RETICULATED FOAM

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.

Properties
Not Fire Retardant (None F/R)
Perfect for Outdoor Seating

SUPERIOR HIGH DENSITY FIRM RG50 (WHITE)

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.

Grade
RG50/230
Notional Hardness
230 N
Density
50 kg / m3
Properties
Flame Retardant

SUPERIOR HIGH DENSITY MEDIUM FIRM REFLEX 50 (PINK)

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.

Grade
REFLEX 50
Notional Hardness
135 N
Density
50 kg / m3
Properties
Flame Retardant

FIBRE FOR BACKS, BOLSTERS & PILLOWS

Grade
100% Hollow Fiber

FIBRE FOR SEATS CUSHIONS

FOAM CORE FEATHER (MEDIUM FIRM)

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    

Grade
REFLEX 40
Notional Hardness
135 N
Room Temp. Hardness
135 N
Density
40 kg / m3

FOAM CORE FIBRE INTERIOR

This Foam core feather combination is best suited to those wanting a medium form seat  

Grade
REFLEX 40 H
Notional Hardness
135 N
Room Temp. Hardness
135 N
Density
40 kg / m3

EUROPEAN 302 DE-QUILLED FEATHER

European 302 de -quilled for extra comfort

    Before you order fabric Please send your design to the basket then order fabric 

Your Created Product

Measurements

choose your cushion filling

FROM £10.00

Description

 

Custom Sloped Back Cushion Covers – Designed to Follow the Angle, Built to Last

Sloped back cushions are great for comfort — but they’re a nightmare when it comes to finding the right cover. Whether it’s a fixed-back bench in a motorhome, angled seating on a narrowboat, or a wedge-shaped lounge cushion in the conservatory, standard covers don’t stand a chance.

That’s why we offer made-to-measure Sloped Back Cushion Covers, cut and stitched to match the exact angle and dimensions of your cushion. No baggy corners. No forced fits. Just clean lines, crisp finishes, and a cover that’s built for the job.

So if you’re upgrading sloped seating or replacing a tired cover on your angled backrest, you’re in the right place.


Made for Angles – Precision Cuts, Perfect Fit

Sloped back cushions require precision. A few degrees off, and your cushion won’t sit right — or look right.

Rather than forcing a square cover onto a sloped shape, we custom-make each one to follow the exact incline and profile of your cushion. That means your new cover will hug the angle, sit flush with the seat, and provide proper support — with no awkward bulging or slipping.

Compared to standard covers, this one’s built for accuracy — not approximation.


Choose a Style That Suits Your Look

Once the shape’s sorted, it’s time to style it out. Different spaces demand different finishes, so we offer a choice of smart, versatile cover styles to suit every interior:

  • Wrap Style – sleek and minimal, great for contemporary spaces

  • Box Style – adds definition and clean lines

  • Box with Piping – classic tailoring with a sharp edge

  • Box Pleat Style – traditional and decorative, perfect for heritage interiors

Whichever you choose, it’s made to order by our skilled team right here in the UK — hand-cut, hand-finished, and quality-checked.


Fabric Options to Suit Every Setting

A sloped back cushion doesn’t just need the right shape — it needs the right fabric, too. Depending on where your cushion lives, different materials bring different benefits.

  • For outdoor, campervan, or marine use, go for our tough, UV-stable, water-resistant fabrics — built to survive heat, damp and motion.

  • For indoor comfort, choose from plush velvets, soft cottons, and stylish weaves — all available in a range of classic and contemporary colours.

Even better, you can have different fabrics on each side for a reversible finish — great for changing with the seasons or flipping after spills.

Still unsure? We’ll send you free fabric samples to help you decide.


Need New Foam? We’ll Cut That Too

Let’s not forget what’s inside. If the foam in your sloped cushion has lost its shape or support, we’ve got your back (literally). We’ll cut foam to match the slope and shape you specify — including any taper or wedge profile.

Choose from:

  • High-density foam – great for back support and structure

  • Reflex foam – offers a softer, more yielding feel

Additionally, we offer Dacron and Stockinette wrapping to create a plumper shape and a cleaner, easier fit.


Helpful Add-Ons That Make a Real Difference

We don’t just stop at fit and finish — we think about the little things that make daily use easier too:

  • Choose your zip position for simple removal and cleaning

  • Add a non-slip base, ideal for boats or mobile homes

  • Include Velcro tabs, ties or fixing straps to keep everything neatly in place

All our covers are also removable and washable, so maintenance is easy and stress-free.


Why Throw Away a Cushion When a New Cover Does the Job?

If your cushion’s sloped foam is still in good shape, there’s no reason to replace the whole thing. A custom-made cover lets you keep what works — and refresh what doesn’t.

It’s the smarter, greener, and more cost-effective option — especially for fitted or hard-to-replace shapes like sloped backs.


How to Order Your Sloped Back Cushion Cover – No Headaches, No Guesswork

We’ve made the ordering process straightforward and easy to follow. Here’s what to do:

  1. Select your preferred units — mm, cm or inches

  2. Enter your cushion’s length, width, depth, and the angle or slope measurements

  3. Pick your cover style and your favourite fabric

  4. Add any special instructions — zip placement, fabric on each side, which side faces out

  5. Click “Add to Cart” — and we’ll take it from there

Not sure how to measure a sloped cushion? Just get in touch — we’ll talk you through it step-by-step.


Why Foam4U?

At Foam4U, we combine traditional upholstery skill with modern precision. That means you get a cushion cover that’s not just made — it’s made properly.

We understand that sloped cushions are unique. That’s why every cover we make is cut to your measurements, sewn by hand, and double-checked for fit and finish.

So whether you’re reupholstering your camper, fitting out a boat, or fine-tuning your built-in seating — we’ll make sure your sloped cushion cover fits the way it should.

Made to measure.
Made to last.
Made in the UK.

 

 

Our sister website www.thefoamshop.co.uk