Posi-joists -

This paper provides a technical overview of Posi-Joists, a modern structural flooring solution combining the strength of timber with the versatility of metal web technology. It examines the structural mechanics, benefits over traditional solid timber and I-joists, design considerations, and installation best practices. The paper highlights how Posi-Joists address contemporary construction challenges regarding service integration, structural span, and sustainability.

At its core, a Posi-Joist is a hybrid. It consists of strong, solid timber flanges (top and bottom) connected by a sinusoidal or zig-zag steel web. This “I” shape gives it incredible strength-to-weight ratio. But unlike a traditional I-joist (made of OSB), the open steel web of a Posi-Joist is its superpower. posi-joists

Posi-Joists are versatile and can be designed for domestic floor loads (typically 1.5 kN/m² to 2.0 kN/m² imposed loads) as well as heavier commercial loads. Engineers utilize proprietary software to determine the specific web arrangement (triangulation) required to resist shear forces. This paper provides a technical overview of Posi-Joists,

That is the , and it is quietly revolutionizing how we build from the ground up. At its core, a Posi-Joist is a hybrid

Posi-Joists utilize timber, a renewable resource, often sourced from FSC or PEFC certified forests. The steel content is minimal compared to a fully steel beam, and the lightweight nature of the system reduces the carbon footprint associated with transportation to site. Furthermore, the precision of the system reduces site waste, contributing to a lower overall environmental impact for the construction project.

: Never drill, cut, or notch the timber chords or the metal webs. Doing so compromises the structural integrity of the entire system. Technical Specifications