Posi Joists

The engineered timber division at Mon Timber has the ability and know-how to design and build your Posi joist flooring system, whether it is a small residential renovation or a large commercial new build.

Our specialist team has more than 70 years of combined experience in the field and uses the MiTek software suite to transform the architectural vision into a value-engineered reality.

By utilising market-leading 3D modelling software, our engineering team can accurately design and estimate your bespoke flooring solution.

Posi Joists

What is a Posi Joist?

Posi Joists, also known as metal web joists or open web joists, are an innovative structural solution widely used in modern construction.

They offer a versatile alternative to traditional solid timber or engineered wood joists, combining the benefits of both timber and steel in their construction.

Posi Joists consist of a metal web system sandwiched between timber flanges, creating a lightweight, strong and dimensionally stable engineered floor or roof solution.

Where are Posi Joists used?

A customised flooring solution, Posi Joists are used in a wide variety of construction projects, ranging from residential to commercial and industrial buildings.

  • New build construction
  • Commercial buildings
  • Industrial buildings
  • Residential housing; social housing, private housing
  • Renovations and Extensions

What are the benefits of choosing a Posi Joist flooring platform?

Design Flexibility: Posi Joists allow for greater design flexibility due to their lightweight construction and ability to span large distances.

Easy Installation: Posi Joists are prefabricated to precise specifications, making them quick and easy to install. The open web design provides ample space for routing services, such as plumbing, electrical wiring and HVAC ducts.

Improved Acoustic Performance: Posi Joists offer excellent acoustic properties, reducing sound transmission between floors. The metal web system effectively dampens vibrations and reduces the resonance.

Reduced Deflection and Shrinkage: Posi Joists are engineered to minimise deflection and shrinkage.

Sustainability and Resource Efficiency: The use of metal webs reduces the amount of timber required compared to solid timber joists.

Designing your Posi Joists

There are a few simple steps we take, in order to design the perfect roof truss for your construction project:

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Contact us about Posi Joists

Fill out your details in the contact form below and a member of our team will be in touch as soon as possible to discuss your requirements.

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Our Posi Joists are made-to-measure, so call us to discuss your requirements on 01633 414 414 or email us at engineering@montimber.co.uk

We also design and manufacture roof trusses and i-beam joists, so you can buy both your roofing and flooring packages from Mon Timber.

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