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Aluminium Spreader Plate 390mmx1000mm - 150mm Centres

From £4.99
Now £4.99
in stock, ready to be shipped
Aluminium Spreader Plate 390mmx1000mm - 150mm Centres
From £4.99
Now £4.99
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Elevate your underfloor heating system with the Aluminium Spreader Plate 390mmx1000mm. These top-quality diffuser plates are specifically designed to provide efficient heat distribution across your floor. With dimensions of 390mm x 1000mm and 150mm centers, these spreader plates are perfect for joist centers of 400mm.

The key features of the Aluminium Spreader Plate 390mmx1000mm include:

  • Easy Installation: These spreader plates are laid across traditional joists and can be securely fixed in place using a hand stapler, ensuring a hassle-free installation process.
  • Optimal Heat Distribution: The high-grade aluminum construction of the spreader plates guarantees an even spread of heat across the entire floor surface, providing consistent and comfortable warmth throughout your living space.
  • Suitable for Wooden Joists: Specifically designed for wooden joists with 400mm centers, these spreader plates offer excellent compatibility and performance for wooden floor constructions.
  • Lightweight Design: The spreader plates are lightweight, making them easy to handle and install. This saves you time and effort during the installation process.
  • Compatible with 15mm or 16mm Pipe: This product is designed to seamlessly work with 15mm or 16mm Pert-Al-Pertpipe, giving you the flexibility to choose the pipe size that suits your specific underfloor heating system.

For optimal performance and pipe spacings of 200mm, we recommend considering our High Output or Multi Room kit. Please note that the standard room kits have a pipe spacing of 250mm.

Elevate your underfloor heating system with the Aluminium Spreader Plate 390mmx1000mm. Experience efficient heat distribution, quick installation, and the ultimate comfort in your living space.


This high-grade aluminum plate is designed for use with 15mm or 16mm pipework.

Width 390mm
Length 1000mm
Depth 0.5mm
Weight 0.56kg
Groove Spacings 150mm centers
Total Floor Coverage per Plate 0.39m²

During installation, position the aluminium spreader plates away from the walls to allow space for the pipes to bend and return in the opposite direction. Leave at least 250mm for this purpose.

As you go, securely fasten the spreader plates using staples, nails, or screws. Ensure that they are flush with the surface of the spreader plate.

When placing the second spreader plate, leave a 10mm gap to account for expansion.

Before securing the second spreader plate, insert a small length of pipe into the meeting channels of the two spreader plates to ensure proper alignment.

Keep this in place while securing the second spreader plate, and then remove it. Avoid overlapping the spreader plates, as this can cause noise when heating up and cooling down.

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Our product experts are here to assist with any enquiry you might have.

Our customer support is available Monday to Friday 7am-6pm.

Call us on 0800 141 2643

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Free delivery on all orders

At Underfloor Heating Direct, we strive to make every step of your order as easy and convenient as possible, from finding the right underfloor heating setup to best suit you to taking delivery of your system the very next day.

We're proud to offer a range of delivery options to suit you, including free delivery on all orders over £19.99 or next working day delivery for a fixed price of £4.99.

  • 2-3 working days delivery, order over £19.99 - FREE (£4.99 if under £19.99)
  • Next working day - £4.99 (Order before 4pm Monday - Friday)
  • Next working day before 10.30am - £14.99 (Order before 4pm Monday - Friday)
  • Saturday delivery - £29.99 (Order before 4pm Friday)
30 days returns policy

At Underfloor Heating Direct, our customers have 30 days to upgrade, replace or refund their orders.


At Underfloor Heating Direct, we want to ensure you are happy with every purchase you make. If you have any issues with your chosen product, whether damaged, faulty or simply an unwanted item, you can simply return what you bought for a refund.


We take great care in the delivery of all of our products, however, in the event of your delivery arriving damaged or if you notice a manufacturing fault of any kind within 48 hours of delivery, you're within your rights to a replacement.


Within 14 days of purchasing from us, you are eligible to upgrade if you deem you want something a little better. Simply send it back to us brand new and we'll happily assist you with an upgrade to your order.

Lifetime warranty

At Underfloor Heating Direct, we are committed to providing our customers with high-quality products and outstanding customer service. That's why we offer a comprehensive warranty on all of our underfloor heating products, with a lifetime warranty for our signature kits.

Our warranties are designed to give you peace of mind and ensure that your underfloor heating system operates reliably for years to come.

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