Posi-Struts (a response to BruP)

Firstly, thanks BruP for your comments on our blog (see post 8/9/12) regarding posi-struts. I did some research. The diagrams below explain what posi-struts are. I also read the engtruss website you supplied (thanks again - a good reference). BruP you're right. An advantage of posi-strut is that it's easier to run services (eg pipes) through the open space.

You're aware we had our private frame inspection today. I asked our inspector about the pros and cons of posi-strut and whether it would have been better for this build. His opinion is that while it is easier to run services through posi-strut joists, for good tradies, it's not very difficult to drill holes through the standard joists (such as the joists used in our build) to run services. Further, he suggested the standard joists could actually be better because sometimes posi-strut can creak and squeak and actually make more floor noise under foot. He also offered that a large percentage (I think he said 80%) of the better builders will still be using the standard joists as opposed to posi-strut.

It's good to hear you are not paying $5K upgrade for posi-struts. If you were, based on advice I received today, I'd be telling you to save your money. You could possibly just clarify with CG what the $5K is for, then again, ours is not a custom build so I would imagine things would be different between our builds. I wonder why CG custom builds use posi-strut?

Thanks for drawing our attention to posi-strut. I would not have known to research if you had not made your comment. Good to be communicating. Cheers.

Posi-Strut & Posi-Plus Posi-STRUT® is an open web truss system that combines the strength of steel with the flexibility of timber for custom made systems that will meet the exact requirements of your job. The joists used in our build (see below)