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Dual Purpose Overlay Panel

SKU: RIW-120-20OP Categories: , , ,


Dual purpose Wet room floor Board with under floor heating groove

Box of 10

Length  – 1200mm

width – 600mm

Thickness – 20mm


RNK discover the exceptional versatility and performance of Dual Purpose Overlay Panel 1200x600x20mm. These innovative panels are designed to accommodate various floor coverings, making them the ideal solution for both tiles and floating floors, such as engineered wood and laminate. With two different installation methods for each flooring type, you can achieve the perfect underfloor heating system with ease.

The key features and benefits Dual Purpose Overlay Panel 1200x600x20mm include:

  • Suitable for 16mm Pipework: The panels are specifically designed to be compatible with 16mm pipework, ensuring efficient heat transfer and optimal performance.
  • RNK dual-Purpose Design: These panels serve a dual purpose, allowing you to use them as a reliable underlayment for both tiles and floating floors. Enjoy the flexibility to choose your desired floor covering without compromising on the effectiveness of your underfloor heating system.
  • Consistent Grade Polystyrene: RNK dual purpose panels utilise EPS 400 kpA grade polystyrene consistently throughout the product. You can trust in the quality and durability of the materials used.
  • Effective Heat Distribution: With a bonded 200-micron aluminum heat diffuser, these panels ensure even and rapid heat transfer across the entire floor surface. Experience optimal heat output and superior comfort in your living space.
  • Ultra-Strong and Lightweight: panels are engineered to be ultra-strong yet lightweight, making them easy to handle and install. Enjoy the convenience of a hassle-free installation process.
  • Accepts Various Floor Coverings: These panels are compatible with a wide range of floor coverings, including laminate, engineered wood, and porcelain/ceramic tiles. You have the freedom to choose the perfect finish for your space.

Experience the ultimate convenience and performance with RNK dual Purpose Overlay Panel 1200x600x20mm. These panels offer exceptional versatility, easy installation, and the ability to accommodate a variety of floor coverings. Choose the ideal solution for your underfloor heating needs.

Install with confidence, and enjoy the benefits of a high-quality, energy-efficient underfloor heating system.

Available in 2 thicknesses (20mm/30 mm) the RNK dual-Purpose overlay panels can accommodate 2 different thickness of pipework, depending on the installation.

Panel thickness Compatible pipe
RNK dual purpose 20mm Panels 16mm Pipework
RNK dual purpose 30mm Panels 16mm Pipework

Pipe Spacing of 150mm are applicable for both 20mm and 30mm panels

Each panel is 1200×600 (0.72m2) in coverage meaning you would need 14 boards to cover a 10 m2 area for example.




You can track the status of your order as it progresses at rnklondon.com. It may take up to 48 hours from confirmation for your order to become active.


Mainland UK
Small deliveries, such as taps, showers, and accessories – £9.95

Medium deliveries, such as vanity units, basins, and shower trays – £40

Bath deliveries – £96


Small deliveries, such as taps, showers, and accessories – £19.95

Medium deliveries, such as vanity units, basins, and shower trays – £75

Bath deliveries – £145


Northern Ireland, ROI, and the Isle of Wight

Small deliveries, such as taps, showers, and accessories – £9.95

Medium deliveries, such as vanity units, basins, and shower trays – £95

Bath deliveries – £195

Isle of Man

Small deliveries, such as taps, showers, and accessories – £9.95

Medium deliveries, such as vanity units, basins, and shower trays – £120

Bath deliveries – £240


We can offer excellent delivery rates to Jersey/Guernsey, please call for info.


For delivery quotes outside of the UK please call us on 0203 633 4558.


For deliveries to the EU please allow 10-14 working days for deliveries, pending customs clearance. 

If you are ordering several products, you will only pay one delivery charge.

Once your order is processed by our online sales team, the courier will contact you to arrange a suitable delivery date.

Due to increased order volume, please allow for 7-10 working days for delivery. For further information please contact info@rnklondon.com

Small Parcel Delivery 5-7 working days.

Pallet Delivery 10-14 working days.

Please do not contact us until a delivery date has been confirmed by the courier as this may result in a delay. If you have not been contacted within the above time frame, please call us on 0203 633 4558.



Please make us aware if you have any access restrictions to your property.

Pallet deliveries are to a kerbside location.
Your property must allow access to 1.7 – 7.5-tonne vehicles.
Our couriers will not be able to manoeuvre pallets up steep inclines.
Our couriers can only deliver to ground floor locations.
In order to operate SAFE pump truck operations, we can only operate on solid, flat surfaces.
Our drivers are not permitted to enter your property.
Deliveries are an all-day service between 8 am and 7 pm.



Orders such as taps, showers, and accessories will be delivered by DPD, ROYAL MAIL OR UPS. Delivery time is 5 -7 working days. You will receive a text from the couriers with a delivery date. Please make sure you are available to receive the delivery on that date or contact the courier to rearrange. Deliveries are an all-day service between 8 am and 7 pm.


We strongly recommend that you do not book any fitters or installers until you have received all your goods in full. 

If you haven’t added your contact number to the order, please email this across to us as soon as possible. Without this, the delivery driver won’t be able to contact you.

Although we thoroughly inspect all products before they leave our distribution centre, we advise you to check over the product(s) for damage once the delivery arrives. Once you sign for the delivery this is an acceptance that you are happy with the product(s).



RNK is inspired by minimalism, simplicity yet modern and symmetry of geometric shapes in bathroom basin and vanity collections. These are available in imperishable materials such as solid stone, natural stone and wood.

 The designers in RNK describe their collection as a result of applying “the sensibility of clay to solid and natural stone”. This approach can be seen in a fluid curve of each piece, featuring a bevelled edge design and creating a sense of serenity.

 Our meticulously handcrafted collections strip the stone to its very essence, highlighting the intrinsic spiritual qualities of these precious and versatile natural materials.


Price is Box of 10

Additional information

Weight N/A
Dimensions 1200 × 600 × 300 mm

20MM, 30MM