Technical Support

Icon Caret Product Introduction

ST90HDX | Thermally Broken Lintels

Supatherm Extra Heavy Duty Cavity Wall Lintel  

Cavity Size: 90-105mm

Not suitable for point loads or concrete floors 


  • Up to 80% reduction in heat loss compared with standard cavity wall lintels
  • Can help meet Part L Building Regulations and the Future Homes Standard
  • Options suit all types of masonry and wall construction
  • Avoids propping associated with single leaf lintels
  • Find out more about Supatherm here 

Lintel PSI Calculator


Icon Caret Product Attributes

Brand Supatherm
Generic Ref Extra Heavy Duty
Generic Ref ST90HDX
Product Range Supatherm Lintels

Icon Caret DoPs & DOCUMENTS

Lintels Selector

Icon Stockist

Stockist Locator

Supatherm PSI Calculator for Thermally Broken Lintels

Products in Our Range