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
T-Shaped Boat Cushion Covers – Custom-Made for a Seamless Fit
Refresh your boat’s interior with our custom T-shaped boat cushion covers, designed to perfectly fit your unique seating layout. At Foam4U, we specialise in made-to-measure cushion covers that are tailored to your exact requirements—so you get the best possible fit without compromise.
We’ve provided standard T-shape options to guide you, but we know every boat is different. If your shape doesn’t match exactly, don’t worry—if you can draw it, we can make it. Simply enter your sizes online. If the shape isn’t exactly as shown, you can send us a sketch or template, and our team will ensure your covers are crafted with precision.
Our covers are available in a wide range of high-performance marine fabrics, suitable for both interior and exterior use. These materials are water-resistant, UV-stable, and easy to clean—perfect for life on the water.
Custom-made to your exact measurements
Durable, marine-grade materials designed to last
Wide range of colours and fabric finishes to suit your style
Easy to order – simply enter your sizes. If the shape isn’t exactly as shown, you can send us a sketch or template.
Perfect for T-shaped boat seating, loungers, and custom layouts
At Foam4U, we believe in custom solutions that work for you. Whether you’re replacing worn-out cushions or designing a completely new look, we’ll help bring your vision to life—one perfectly fitted cushion cover at a time.
Order your T-shaped boat cushion covers today and get the fit, feel, and finish your boat deserves.
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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