1. Select Units – Pick whether you’re measuring in mm, cm, or inches.2. Enter Sizes – Type in your exact dimensions for the cushion.3. Choose Foam – Decide on your foam type or just pick “cover only” if you don’t need filling.4. Add Extras – You can add Stockinette or Dacron for extra comfort or structure.5. Design Covers – Choose your cover options, and don’t forget to include the labour charge (this is required).6. Add Comments – Write down any special instructions or details they should know.7. Add to Cart – Double-check everything, then proceed to checkout.
For more Popular shapes
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.
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.
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″.
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.
Use this option to create a cover to the sizes entered above
We offer a wide range or both Interior Upholstery Fabric & Exterior Water Resistant Fabric suitable for a marine environment. Customer can workout exactly the amount of fabric required per cushion, using the Fabric Calculator. You will only be able to add fabric to your order once you have sent the foam & cover order to the cart.
FROM £7.00
L-Shaped Boat Cushion Covers – Custom-Made for a Perfect Fit
Enhance your boat’s comfort and appearance with our custom L-shaped boat cushion covers, made to fit your exact measurements. At Foam4U, we know that every boat is unique—and so are its cushions. That’s why we specialise in bespoke L-shaped cushion covers designed to match your individual layout.
We’ve listed the most common L-shape designs to help guide you, but don’t worry if yours isn’t an exact match. If you can draw it, we can make it. Simply enter your sizes on our website. If the shape isn’t exactly as shown, you can send us a sketch or template, and we’ll handle the rest with precision and care.
Choose from a wide selection of high-quality marine fabrics in various colours and textures, all designed for long-lasting use in marine environments. Our materials are durable, water-resistant, and easy to maintain—ideal for life on the water.
Tailor-made to your exact measurements
Durable, marine-grade fabrics built to withstand the elements
Fully customisable for shape, fabric, and finish
Easy to order – simply enter your sizes. If the shape isn’t exactly as shown, you can send us a sketch or template.
Ideal for boats, yachts, and campervans
Whether you’re replacing worn-out covers or redesigning your space, Foam4U delivers custom boat cushion covers that combine function with style—crafted with care and made to last.
Order your L-shaped boat cushion covers today and get the perfect fit, every time.
If you need any help and advice please feel free to contact us, we have been supplying foam for and upholstery for many years over three generation so your in safe hands.
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