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20mm Premium Thermal Substrate Insulation Board PCS DeltaBoard (3m² Kit)

More from Thermal Insulation

BBA Approved
20mm Premium Thermal Substrate Insulation Board PCS DeltaBoard (3m² Kit)
  • 1200mm x 600mm coverage (per board)
  • Available in 6mm, 10mm & 20mm thickness
  • Ideal for tiling over
  • For wooden or concrete base floors
  • High level of thermal insulation

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Quick Find: 18055
Part Code: 20.0mm - 3sqm - Pack

Weight: 2.37 Kg

This product is currently awaiting on stock arrival and due in soon.

This product is currently awaiting on stock arrival and due in soon.

Backorder now to secure your delivery or sign up to be notified when this product is back in stock.

This kit contains:

  • 1x - Delta Board Jointing Tape for Thermal Substrate Insulation Boards
  • 1x - 40mm Galvanised Washer & 25mm Screw (Pack of 50)
  • 5x - 20mm Premium Thermal Substrate Insulation Board PCS Delta Board 1200mm x 600mm

View kit contents

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Free Delivery Available*
£64.31 ex VAT
£77.17 inc VAT
£77.17 inc VAT
£64.31 ex VAT
Stock Available: 30 Units


Estimated delivery: 1 working days

Day of Choice Delivery Available

Made To Order This is a made to order product and therefore cannot be returned or cancelled

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

Kit includes:

  • Galvanised washer (40mm) & screw (25mm) Pack of 50
  • Premium thermal substrate insulation board
  • Self-adhesive mesh for jointing boards

Technical specifications

ApprovalBBA Certified
Area3 m²
Board thickness20 mm
Depth20 mm
Mat length1.2 m
Mat width0.6 m
Number of boards5
Product typeInsulation Board
TypeTile Backer Boards

Product downloads

DeltaBoard Data Sheet

File Size: 1.10 MB

Product reviews

5.0100% Positive (3 reviews)

Ratings based on data collected by third party reviewing platform.

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Trusted Customer
10 August 2022 07:03

Easy to cut and to handle

Goods arrived undamaged next day, great product and service.

Thank you so much for taking the time to leave an excellent rating. We really appreciate your business. Please let us know what we can do for you in the future.


Bob Sears, Nottingham
30 September 2019 07:19

Excellent product well priced

The agent I spoke to recommend an alternative product to the one I had chosen, which turned out to be better suited to the job in hand and was better priced.

This is fantastic to hear, thank you very much for the great review.


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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