Vibration control, drilling time, fire-code compliance…

Builders,

forget inefficient wood I-joists.

Wood I-joist floor system

Are you tired of the daily challenges you have to face?

Squeaky or bouncy floors that result in callbacks, fire-code compliance challenges, and difficulties installing mechanical systems…  More than one of these issues often arise when wood I-joists are specified for floor framing.

Now you have an alternative. TRIFORCE® Open Joist.

Meet an all-wood finger joined joist that cuts your labor costs dramatically.

The Open Joist TRIFORCE®

TRIFORCE is always in stock

Always in stock

The TRIFORCE® open joist is readily available from your local lumberyard, in different depths and lenghts to fit your needs. No more delays waiting for custom orders.

TRIFORCE is trimmable and can be adjusted on site

Trimmable on site

Because there’s always an inch to shave off here and there, the TRIFORCE® offers an adjustable end so you don’t have to reorder custom-lengths.

Open web design of TRIFORCE makes it easy to run utilities

Open web design

Stop cutting holes or your fingers!
The TRIFORCE® open joist has no metal plates and makes running utilities faster and easier. Save on labor.

WOOD I-JOISTS VS THE OPEN JOIST TRIFORCE®

WOOD I-JOIST

higher Labor costs - no open web

I-Joists need to be drilled for mechanical installations (HVAC, electrical, plumbing, etc). That means lost time and effort.

Wood-I are not fire-code friendly.

To comply with the IRC Fire-Code, I-Joists must be covered on both sides of their full solid web with fire-resistant chemicals or cladding, at an extra cost to you.

Vibration control is laborious.

Both web stiffeners and blockings can be necessary to obtain the desired floor stiffness with an I-joist floor structure. They may squeak over the years.

TRIFORCE® OPEN JOIST 

Open web design & trimmable

Save labor costs by allowing professionals to quickly install mechanical systems and benefit from a 24" trimmable end.

Fire-code compliance is easy and inexpensive.

By only covering the trimmable end of the TRIFORCE® open joist, your floor system will be fire compliant as per Exception 4 to Section R302.13 of the 2015/2018 IRC.

Vibration control WITH MINIMAL EFFORT AND COST.

Adding strongbacks in strategic locations increases floor system performance by distributing loads to adjacent joists. The resulting rigidity effectively dampens vibration. Strongback installation is quick and easy.

each and every joist is TESTED TO MEET THE HIGHEST STANDARDS.

Unlike I-joists, every TRIFORCE® joist is tested to its capacity before leaving the factory. This testing backs up a unique lifetime product warranty.

"TRIFORCE® COMBINES THE BEST OF WOOD-I & FLOOR TRUSSES"

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TRIFORCE spec guide

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WHY BONNEVILLE HOMES CHOOSES TRIFORCE?

READ OUR CASE STUDY.

A prefab home manufacturer’s quest for the ultimate floor joist leads it to TRIFORCE®.

WHAT THEY SAY ABOUT TRIFORCE®

Your innovative open joists are a good example of never taking-for-granted, the down side of certain building products, just because everybody else uses them.

TRIFORCE is probably the best example of what can be accomplished if we ask ourselves, “why do I continue to choose what everybody else specifies, without considering the extra work + cost that product generates?”.

Mike Carson

Mike Carson Construction, Inc – Louisiana

SEE HOW TRIFORCE® COMPARES

WOOD I-JOIST

FLOOR TRUSS

DIMENSIONAL LUMBER