The fastest manufacturing leadtime for roof trusses & metal web joists in the UK


Posi-joists provide the perfect solution to orangery roof requirements. The excellent characteristic strength properties of posi-joists, in comparison to solid timber or alternative engineered timber beams, combined with the lightweight nature of the posi-joist system, results in a system that’s easy to handle and install whilst ensuring lantern weights in excess of 600kg can be supported with ease and all at an affordable price.

The posi-joist system in conjunction with the latest Pamir design software by Mitek, allows the designer to manipulate the joist end details to suit intricate design details that are commonplace in orangery design and alternate products simply cannot offer this versatility. These include, but are not limited to:

  • Parapet wall details
  • Hanging from ledgers fixed to existing structure
  • Fixing into steels to create openings into the new structure
  • Soffit/gutter detail requirements

If you wish to enquire about orangery roofs please contact our team on 01952 771170, e-mail us at or use the request a quote function located at the top of the page.

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What People Say...

Rapid 5 Working Day Lead Time

Excellent Customer Service

Competitive Prices

Highly Advanced Manufacturing