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Early 70's Trus Joist Information

Early 70's Trus Joist Information

Early 70's Trus Joist Information

(OP)
I'm wondering if anyone has any information regarding trus joist products from the early 70's.  The architectural drawing date is 1971 and I'm looking for an L-series joist (2x4 wood chords, 1" diameter pipe webs).  The earliest information that I have is from the mid-80's and I'm not sure if that's okay to go off of, or if there were major changes between the 70's and 80's.  Offhand I would think that I should be fine - all the detailing appears the same, but I would like some confirmation of my assumptions before getting too in depth here.

I tried calling both Weyerhauser and Redbuilt, but have not made any progress thus far.

Thanks for any help.

RE: Early 70's Trus Joist Information

I used to have the "L" charts - but cannot find them. Sorry.  Have you tried a "google" search??

If memory serves - there wasn't a big difference - just a name change.  But I could be wrong.

RE: Early 70's Trus Joist Information

(OP)
Thanks Mike.  I have hopefully made a little progress with this.  I was able to speak with someone who said they can try and find the file if they had the property address and so on...Hopefully that comes through...

RE: Early 70's Trus Joist Information

(OP)
That was it, just a new version of what I needed.  I actually was able to get the information from the manufacturer.  They said that each joist is made job specific (so why are there load tables...) and they were able to get the information I needed.  

Thanks for the help!

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