20mm Premium Thermal Substrate Insulation Board 1200x600mm

BBA Approved
20mm Premium Thermal Substrate Insulation Board 1200x600mm
20mm Premium Thermal Substrate Insulation Board 1200x600mm

Quick Find: 8689
Part Code: BXB0040D

Free Delivery Available
£9.15 exc VAT
RRP: £14.28

Available Delivery: Free Next Day Delivery

Order now for delivery by Tuesday 11th December if you place your order before 3:00 PM today

Large order Bulk Discounts Available upon request call us now on 01473 559079 to find out more!

Product overview

Range Thermal Substrate Premium
Variant 20mm
Weight 2.59 Kg

Premium Thermal substrate insulation board is a lightweight insulated tile backing board developed specifically for use with tiled floors. It consists of a Polyfoam core with glass fibre reinforced polymer-modified cement faces. It is dimensionally stable, doesn't rot or warp and provides excellent resistance to moisture. It also offers the additional benefit of a high level of thermal insulation, making it the ideal substrate for floor tiling over underfloor heating mat systems. Thermal substrate board is extremely light and easy to cut (using fine tooth saw, jigsaw or utility knife, for example) and to work with.


  • Dimensionally stable, does not warp
  • Excellent resistance to moisture
  • High level of thermal insulation
  • Extremely light and easy to cut

Technical specifications

ApprovalBBA Certified
Depth20 mm
Mat Length1.2 m
Mat Width0.6 m
Product TypeInsulation Board

Customer reviews


Thomas Ballard
8 September 2018 07:38

Prompt delivery and great service

Great service and very prompt delivery. Absolutely spot on. Easily contactable - I would recommend to anyone.


Thank you for the great review of our service, we appreciate the positive feedback.

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