Curved Quarter Cushion Cover

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

How to Order a Curved Quarter Cushion Cover (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 FIRM MATTRESS FOAM RX33/190

This medium-density, firm mattress foam  Ideal for mattresses around 3–4 inches thick, offering reliable support and durability. Just a heads-up—it may feel a bit too firm for those who prefer a softer sleeping surface. Keep in mind—thicker, higher-volume mattresses naturally offer more support than thinner ones, regardless of the foam grade.

Grade
RX33/190
Notional Hardness
190 N
Density
33 kg / m3
Properties
Comfort Level : FIRM
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

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 Curved Quarter Cushion Covers – Built to Follow the Curve, Made to Fit the Space

When your cushion curves into a corner, finding a cover that actually fits is like trying to find a needle in a haystack. Whether it’s a quarter-circle bench in your camper, a bowed seating area on a boat, or a curved corner nook at home, standard covers simply can’t keep up.

That’s why we offer made-to-measure Curved Quarter Cushion Covers, crafted to follow the arc, hug the edge, and fit every inch of your seat — properly.

So if your cushion’s shaped like a quarter of a pie, you’ve just found the perfect slice of the solution.


Designed for the Arc – No Sagging, No Straining, No Shortcuts

Curved quarter cushions bring comfort and visual flair — but they also bring measurement nightmares. Get it even slightly wrong, and the result is baggy seams, pulled edges, or a wonky sit.

That’s why every cover we make is cut to your exact radius and depth — ensuring that it not only fits like a glove but follows the curve naturally, without distortion.

Compared to off-the-shelf attempts, our covers don’t force a round peg into a square hole — they’re shaped from the start to fit curved corners properly.


Choose a Cover Style That Suits the Setting

The shape’s sorted — now it’s time to style it. Whether your space is modern, classic, rustic or nautical, we’ve got a finish to suit.

Choose from:

  • Wrap Style – simple, minimal, and sleek

  • Box Style – adds sharp edges and a more defined structure

  • Box with Piping – for that classic upholstered look

  • Box Pleat Style – traditional, detailed, and full of texture

All styles are made to order by skilled hands right here in the UK, using time-tested techniques and quality materials.


Fabric Options That Work as Hard as You Do

Shape and style aside, fabric makes the biggest difference. Whether your cushion is indoors, outdoors, or constantly on the move, we’ve got fabric choices to suit every scenario:

  • For boats, caravans, and exterior benches, our UV-stable, water-resistant fabrics are a solid, durable choice

  • For indoor cushions, we offer velvets, cottons, easy-clean blends, and woven textures — all handpicked for comfort and longevity

Want something with variety? No problem. We can make your cover reversible with a different fabric on each side — ideal for mixing up your space without changing the cushion.

Not sure which way to go? Request free fabric samples and see for yourself before you decide.


Need New Foam for Your Curved Quarter Cushion? We’ve Got That Covered Too

Sometimes the problem isn’t the cover — it’s the foam underneath. If your cushion core’s lost its bounce, we’ll supply curved foam cut to match your quarter shape exactly.

Select from:

  • High-density foam – firm, supportive, long-lasting

  • Reflex foam – soft and springy, great for lounging and informal setups

We can also wrap your foam in Dacron or Stockinette for a smoother fit and a plumper look inside the cover.


Finishing Touches That Make Life Easier

Awkward shapes need practical solutions — which is why we offer a few extras that make all the difference in daily use:

  • Pick your zip location to suit where the cushion sits

  • Add a non-slip base, especially useful for moving vehicles or smooth benching

  • Include Velcro tabs, ties or fixings to keep everything secure

And yes — all our covers are fully removable and washable, so cleaning is quick and painless.


A Smarter Way to Refresh, Without Starting Over

Why bin a perfectly good curved cushion just because the cover’s looking a bit tired? Especially when that shape’s near impossible to replace?

Instead, go custom — and give your existing foam a second life with a new, properly made cover. It’s the cost-effective, sustainable, no-nonsense solution.


How to Order Your Curved Quarter Cushion Cover – Straightforward from Start to Finish

We’ve made the process simple and accurate. Just follow these easy steps:

  1. Choose your units — mm, cm or inches

  2. Enter your cushion’s radius and depth, and note any specific details (e.g. flat edge measurements)

  3. Select your cover style, fabric, and extras

  4. Add any special notes — zip placement, fabric preferences, etc.

  5. Click “Add to Cart” — and we’ll take care of the rest

Need help with measuring your curved quarter cushion? Just shout — we’ll guide you step-by-step.


Why Foam4U?

At Foam4U, we’re not afraid of a curveball. In fact, we welcome them. From radius corners and quarter arcs to custom shapes and one-offs — this is what we do.

With decades of experience, British craftsmanship, and top-quality materials, we build cushion covers that do more than just fit — they finish the job properly.

So whether it’s a boat bow seat, a camper corner, or a stylish curved nook at home — your Curved Quarter Cushion Cover is in safe hands.

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

Our sister website www.thefoamshop.co.uk