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ST90 | Thermally Broken Lintel

Supatherm Standard 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
  • Contributes to meeting 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

Length 750-1050 1200-1350 1500-1650 1800-2100 2250-2400 2550 2700-3000 3300-3900
Psi Value*W/mK 0.098-0.057 0.053-0.048 0.043-0.039 0.06-0.052 0.048-0.043 0.039 0.055-0.051 0.037-0.031

(L) Load SWL/UDL value (W) Weight (H) Height 



Icon Caret Product Attributes

Brand Supatherm
Generic Ref ST90
Product Range Supatherm Lintels

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Supatherm PSI Calculator for Thermally Broken Lintels

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