Square & Rectangular Boat Cushion Covers – Made to Measure

Create made to measure square and rectangular boat cushion covers for cabin seating, cockpit benches and straight seating areas. Whether you're replacing worn covers or upgrading your entire seating setup, this product allows you to order exactly what you need with a clean, professional fit.

Order Covers Only or Complete Cushions

This product gives you full flexibility depending on your requirements:

• Covers Only – ideal if your existing foam is still in good condition and you simply want to refresh the look of your boat seating
• Foam & Covers – complete replacement cushions, made to your exact dimensions for improved comfort and support

All cushion covers are made to order to match your specified size, thickness and finish.

Important – Fabric Selection

Fabric is sold separately and should be selected once you have added your cushion sizes to the cart.

We strongly recommend allowing us to guide you through the process. Once we have your cushion sizes, we can advise on the correct amount of fabric required, helping you avoid ordering too little or overbuying unnecessarily.

After configuring your covers (or foam & covers), you can then choose your fabric to complete your order.

Browse Marine & Upholstery Fabrics Here

We offer a wide range of durable, marine-suitable fabrics including water-resistant and hard-wearing upholstery options designed for use in boats, campervans and caravans.

Designed for Straight Boat Seating

Square and rectangular cushion covers are the most common shape used across boat interiors and deck seating.

They are ideal for:

• Cabin bench seating
• Cockpit cushions
• Dinette seating areas
• Helm and companion seating
• Rear bench and sun pad base cushions

If your cushions are straight-edged with square or rectangular dimensions, this is the correct product for your setup.

Made to Measure for a Precise Fit

Every cover is manufactured to your exact measurements, ensuring a tailored fit that looks right and performs properly in a marine environment.

• Custom width, length and thickness
• Professional finish with clean edges
• Designed to fit snugly over your foam

This eliminates the loose, ill-fitting covers commonly found with off-the-shelf alternatives.

Built for Marine Use

Boat seating needs to withstand a tough environment. Our cushion covers are made using fabrics suitable for:

• Moisture and damp conditions
• Regular use and movement
• Exposure to changing temperatures

When paired with the correct fabric choice, your new covers will provide long-lasting performance both inside the cabin and on deck.

Foam Options Explained – Marine Use

If you choose foam with your cushion covers, we strongly recommend selecting a foam suitable for marine environments.

Reticulated (Dry Fast) Foam – Best for Boats

For cockpit seating, deck cushions and any area exposed to moisture, reticulated foam is the preferred option.

• Open-cell structure allows water to drain straight through
• Dries quickly, helping prevent damp and mildew
• Ideal for outdoor and high-moisture marine use
• Maintains performance even after repeated exposure to water

This makes it the go-to choice for cockpit cushions, flybridge seating and external bench seating.

Reflex Foam – For Interior Cabin Seating

For internal seating where cushions are protected from the elements, reflex foam is a great choice.

• Provides firm, supportive seating
• Comfortable for extended use
• Durable and long-lasting

This is typically used for cabin seating, dinette areas and internal bench cushions.

Choosing the Right Foam

• External / exposed areas → Reticulated foam
• Internal / dry areas → Reflex foam

If you're unsure which option is right for your setup, we’re happy to guide you based on how and where your cushions will be used.

Moisture Control – Why We Recommend Airmat Spacer

For both cabin and deck cushions, managing moisture is just as important as choosing the right foam.

We recommend adding a 3D Airmat spacer layer beneath your cushions to improve airflow and reduce the risk of damp build-up.

Why Airmat Matters

• Creates a breathable gap between the cushion and the base
• Allows air to circulate freely underneath the cushion
• Helps moisture evaporate rather than becoming trapped
• Reduces the risk of mould, mildew and condensation

Ideal for Both Interior & Exterior Use

Cabin Seating
Even inside the cabin, condensation can build up under cushions — particularly in cooler conditions. Airmat helps prevent that damp, musty feel often found in enclosed boat spaces.

Deck & Cockpit Cushions
For external seating, Airmat works alongside reticulated foam to allow water to drain and dry more efficiently, improving comfort and longevity.

How It Works

Airmat is a thin 3D mesh layer (approx. 8mm thick) placed between your cushion and the seating base. Its open structure allows moisture to escape while maintaining support and stability.

Recommended Setup

• External cushions → Reticulated foam + Airmat spacer
• Internal cushions → Reflex foam + Airmat spacer (recommended)

Adding Airmat is a simple upgrade that can significantly improve the lifespan and performance of your boat cushions.

Not the Right Shape?

If your cushions are not square or rectangular, you may need a different product:

• V berth mattresses and cushions
• L-shaped seating
• Cut-away or irregular shapes

Explore our full range of made to measure boat cushion solutions to find the correct fit.

Need Help Before Ordering?

If you’re unsure whether to order covers only or complete cushions, or need help with measurements, our team is here to help.

Add your cushion sizes first and we’ll guide you on the correct setup — including advising how much fabric you need — so you get the right result first time.

Related Products & Options

• Made to measure foam cut to size
• Boat mattresses and V berth cushions
• Custom fitted sheets for marine mattresses