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Old 01-05-2009, 06:08 PM   #1
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tgi vs. tji


what are the differences between tgi and tji truss systems?

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Old 01-05-2009, 06:51 PM   #2
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tgi vs. tji


TJI is a brand name for Weyerhaueser's i-joist product. They used to be owned by Truss Joist Macmillan, hence the "TJ", so they're TJ's I-joists or TJI's. Weyerhaueser isn't stupid when it comes to marketing and product awareness, so they kept the TJI moniker.

TGI isn't a brand to my knowledge. A lot of people mistakenly replace the J with a G...Very common. TJI was an innovator in the field, so they're used as a descriptor for I-joists in general just like people calling gypsum wallboard "sheetrock". Sheetrock is a brand name.

Other brands of I-joists include BCI's, which are Boise Cascade's version, and LPI's, which are Louisiana Pacific's (now called Solid Start).

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Old 01-05-2009, 06:52 PM   #3
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tgi vs. tji


For the record, neither are truss sytems. They are joist systems, and should not be confused with floor trusses.
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