Posi-joists Jun 2026

: Combines the strength of a Posi-Joist floor with an attic truss to maximize usable living space in roof voids.

The Differences Between Posi Joists and I-Joists - Minera Roof Trusses posi-joists

A Posi-Joist isn’t just a piece of the frame—it’s a piece of intelligence. It accepts that modern homes are not just places to walk, but complex ecosystems of heat, power, and water. By lifting the floor slightly and adding a web of steel, it turns the forgotten space beneath your feet into a thing of elegant, functional beauty. : Combines the strength of a Posi-Joist floor

For the contractor, Posi-Joists are a logistical dream. They are lightweight (one person can easily carry a 5-metre joist), arrive precut to length, and sit perfectly level on the wall plate. No more hunting through piles of warped, twisted, or crowned timber. And because the open web allows air to circulate freely, there’s less risk of condensation or dry rot in sealed floor zones. By lifting the floor slightly and adding a

: The open-web design allows plumbing, electrical, and MVHR (Mechanical Ventilation and Heat Recovery) systems to be routed through the floor zone without any drilling or notching.