CAVITYTHERM
Reduce waste
WITH OUR CAVITYTHERM CALCULATOR
Introducing our CavityTherm Corner Board Calculator. This tool simplifies material estimates, helping you manage waste and maintain cost control. With just a few inputs, you’ll get precise quantities of CavityTherm corner boards (internal and external). Make your project planning more efficient and accurate—start calculating now!
- External Corners
- Internal Corners
- Measurement Guide
Enter the storey height (in meters) and the number of external corners.
Enter the storey height (in meters) and the number of internal corners.

CavityTherm is an innovative built-in insulation for traditional walls that achieves passive level U-Values as low as 0.12 W/m2K with excellent thermal bridging detailing in cavities less than 150mm wide.
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Resources
Have a look at our brochures, technical files and other documents