• XPS Insulation Board 6mm 10mm 20mm 30mm
  • Thickness options from 6mm, 10mm, 20mm, and 30mm of insulation board
  • Size chart showing the area calculation in m2
  • closeup of laying down the underfloor heating insulation board
  • model image of xps insulation boards layered on the floor
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XPS Insulation Board 1200 × 600 mm – Choose Thickness

XPS Insulation Board 1200 × 600 mm – Choose Thickness

£3.95 GBP
£5.99 GBP £3.95 GBP
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Thickness

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Plain extruded polystyrene (XPS) insulation board with no cement coating.

  • Board size: 1200 × 600 mm.
  • Quantity supplied: one board for each unit added to your basket.
  • Nominal area: 0.72 m² per board before cuts and waste.
  • Select the required thickness before ordering: 6 mm, 10 mm, 20 mm or 30 mm. Availability is shown for each option.

For planning, divide the area to cover by 0.72 and round up, then allow separately for cuts and waste. Check suitability and installation requirements with your floor-finish or heating-system supplier.

Need a smaller board? See our 600 × 600 mm plain XPS boards. For a cement-coated tiling surface, see our tile backer boards.

Features

Board size: 1200 × 600 mm.

Material: plain extruded polystyrene (XPS), without cement coating.

Thickness options: 6 mm, 10 mm, 20 mm and 30 mm.

Quantity supplied: one board per unit ordered.

Nominal area: 0.72 m² per board before cuts and waste.

Key Benefits

Choose the thickness and quantity required for your project.

Plain XPS board is a different product from cement-coated tile backer board and grooved pipe-heating board.

Check suitability and installation requirements with your floor-finish or heating-system supplier.

FAQ's

How much area does one board cover? A 1200 × 600 mm board has a nominal area of 0.72 m² before cuts and waste. Divide the area to cover by 0.72 and round up, then allow separately for cuts and waste.

What is supplied? One board for each unit ordered. Select the required thickness before adding it to the basket.

Is this a cement-coated tile backer board? No. This is plain XPS insulation. Choose the separate tile backer board product if a cement-coated surface is required.

Which thickness is suitable? Check your complete flooring or heating-system requirements before selecting a thickness.

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  • Why Customers Love It

    Genuinely good value. Several customers specifically call out the price-to-quality ratio, with one noting the boards cost less for an entire room than a local supplier quoted for a much smaller area.

    Easy to cut and work with. Reviewers consistently describe the boards as simple to handle and cut to size, suiting both first-time DIYers and repeat trade customers.

    Reliable, well-packaged delivery. Fast dispatch and secure packaging come up again and again in feedback — orders arriving quickly and in good condition, even for smaller quantities.

    More versatile than expected. Beyond flooring and underfloor heating, customers have used these boards successfully for van insulation, soundproofing, and even model-making projects — a sign of just how consistent and workable the material is.