Fastwarm® DUO transitional boards are easily cut to suit any overfloor project where pipes concentrate or corners need to be formed.
Straight pipe runs fit directly into the board, which can be cut to size. Corners are formed by cutting two boards at 45° to create a 90° turn. Leave around 150mm gap at cut edges to allow pipe bending without kinking. The space between boards can be backfilled with renovation screed after securing pipes with nail clips if necessary.
- 20mm board thickness suitable for 16mm pipe – Includes 16 channels tailored for larger diameter pipes.
- Panel dimensions – Measures 1200mm long x 600mm wide, covering 0.72m² per board.
- Coverage details – Approximately 14 boards required to cover 10m².
- Easy to cut – Boards can be shaped with a craft knife or fine-toothed saw for custom fitting.
If you require a slimmer board for smaller pipe diameters, check out the Fastwarm DUO 16mm Transitional Board designed for 12mm pipework. It offers a thinner profile suited to smaller pipes.
Choosing the correct board thickness is essential for optimal pipe protection and installation accuracy. Proper selection helps maintain system integrity, prevents pipe damage during bends or joints, and ensures your underfloor heating performs efficiently and reliably over time.
| Material | 400KPA Polystyrene |
|---|---|
| Pipe Spacing | 16 channels (20mm) / 18 channels (16mm) |
| pa_panel-size | 1381, 1382 |
| Depth | 20mm / 16mm |
| Length | 1200mm |
| Weight | 1.0kg |
| Width | 600mm |
Delivery Options
2-3 working day delivery
Next working day
Next working day before 10:30
Saturday Delivery
Delivery cut off times
Our daily cut-off time for dispatch is 4:30pm Monday–Thursday and 4:00pm on Fridays. Orders placed before the cut-off time will be dispatched for next working day delivery (if this option is selected). Orders placed after 4:00pm on Friday will be dispatched on Monday for Tuesday delivery.
Bank holidays may affect these delivery times, so please contact our team if unsure on 01268 744479
Other Delivery Options
PRE-10:30AM and Saturday Delivery services are available, but orders must be placed before the relevant cut-off times.
NOTE: All orders placed on a Friday will be delivered on the following Monday (unless its a bank holiday), unless a Saturday Delivery service is selected and paid for before the 4:00pm Friday cut-off.
Delivery outside the UK
Delivery outside mainland UK may be arranged by prior agreement. You will be advised of the delivery charge before dispatch, at which point you can decide whether you wish to proceed with your order.
Important: Our deliveries rely on third party couriers, so, whilst we make every effort to deliver your order on the specified date and time, unfortunately there may be occasions when this will not be possible due to external influences. Due to this we strongly recommend you ensure you have received your order before any tradespeople/builders are scheduled to commence work.
Still Unsure? Talk to an expert
If you need any guidance or further information our highly experienced team are on hand to help.
Get in touch using our contact form or give us a call on 0800 023 4203 or 01268 744 479.
