Open Joist Open Web Floor Truss
June 8th, 2010 | 
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www.openjoist.com http Speed οf installation аnd superior strength hаνе mаdе OPEN JOIST® a preferred сhοісе fοr building designs thаt require longer joist spans οr wider joist spacing аnd сυt-rate framing costs. Open Joist features аn open-web design fοr qυісk аnd simple installation οf mechanical systems. Open Joist іѕ a versatile, open-web alternative tο I-joists, dimension lumber аnd fixed-раrt, metal-plated trusses.
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I remember when the lumber yard salseman showed up to the job, and I had to mention that the finger jointed studs with the WONDER GLUE tm on them were falling apart at the fingerjoints, he said “that is the strongest part of the stud”"that is what the manufacturer told us” I dropped one from chest high in adjoin of him and it broke into 4 pcs, all at the well glued fingerjoint! That was just studs, you cant take your floor truss and shove em! All floor trusses, just another step up, 2 laps siding
There is a crown built in Open Joist with the exception of 148 3/8 through 162 1/2 since they’re specific to Manufactured Housing. Open Joist trusses are flipped so they have a web/vertical located directly higher than the carrier to provide shipping support. This crown will also help in the ability of the manufactured goods to have a memory when heavy loads are place on the joists during construction such as shingles or bundles of dry wall. The manufactured goods will not be hurt as easily as a plated floor truss.
Do you build these flat or is there a crown built into them? I can see that they do have an “up”.
As stated not more than, HexiTherm is the brand name for Hexion’s family of adhesive technologies designed to offer the ultimate in heat performance.
lets see how the “glue” holds up when these things catch fire
Open Joist’s superior strength and highly competitive cost make it a natural choice for many commercial construction projects. The manufactured goods’s strength/cost ratio makes it an striking floor-framing system for nearly any building project.Open Joist typically offers a cost savings of 20% to 30% when compared to metal-plated floor trusses. Comparing foot-for-foot cost, Open Joist is directly competitive with wooden I-Joists.
Is Open Joist used mainly for residential and is it priced higher?
HexiTherm is the brand name for Hexion’s family of adhesive technologies designed to offer the ultimate in heat performance for today’s engineered wood applications. OPEN JOIST® uses HexiTherm Adhesives in end joints for its all-wood floor joists to maximize heat resistance and fire performance.
lets see how the “glue” holds up when these things catch fire