Posi-STRUT® range of products are parallel chord trusses using timber chords "on flat" and the unique Posi-STRUT® metal webs.

Posi-TRUSS is a made to order parallel chorded truss commonly used as long span floor joists. They provide an economical and high quality floor structure which is easily assembled and provides excellent access for plumbing, electrical services and air conditioning ducts.

Posi-TRUSS may also be used for long span rafters or purlins to carry tile or steel deck roofing.

As Posi-TRUSSES are designed and manufactured to order for specific projects, they can incorporate internal beams and special support conditions.

The Posi~STRUT® range of products are available in nominal 200, 250, 300 and 400mm depth. Actual overall truss depth depends on timber sizes used for the chords, and is provided in the design tables enclosed.

Posi-STRUTS® make more efficient use of timber than conventional joists, as they have timber concentrated at the top and bottom of the truss where it works most efficiently. This concept is similar to that of steel universal beams, where the majority of steel is located in the flanges.

The efficient use of timber, combined with the strength of the Posi-STRUT® webs, make the Posi-STRUT® range of products very lightweight, yet strong structural members.

For more information, contact:
Glenn Jerome
Technical Manager
Northside Trusses & Frames
Phone 3881 9133
Email: gjerome@ntf.net.au

View or download a copy of MiTek's Truss System Manual, a comprehensive guide to all aspects of timber truss design, application, manufacture and installation.

ADVANTAGES

Posi-STRUTS® offer the following advantages over solid joists:

• Plumbing, electrical conduit and other services can be run between chords and webs.
• No drilling or notching required to accommodate services.
• Additional width available for fixing flooring.
• Ceiling material can be fixed directly to the truss bottom chords.
• Larger clear spans.
• Internal load bearing walls, piers or stumps and bearers can be reduced or eliminated.
• Shrinkage problems sometimes encountered with unseasoned solid timber are reduced or eliminated.
• Lightweight and easy to handle.
• Load sharing ability.
• Strongback bracing increases floor stiffness and reduces squeaky floors.
• Optional top chord support reduces on-site labour.
• With Posi-Purlins, roof and ceiling can be fixed direct.