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Author Topic: Would you buy used rafters?  (Read 1646 times)

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Offline Gilman

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Would you buy used rafters?
« on: May 30, 2010, 07:16:38 PM »
40 ft./ 6ft. rise Trusses - $1200

24 trusses and gables large enough to make a pole barn 32x40 on 16 inch spread, or 40x46 on 24 inch spread. Manufactured trusses from 2x4 construction. Removed from church building with care last year. Can deliver. Call XXX-XXXX These trusses sell for $200 each normally, will sell for $50 each. Must buy all or none.


Would you buy used rafters to use for a saw shed?

Looking for your input.

Thanks, David
WM LT70, WM 40 Super, WM  '89 40HD
Cat throwing champion 1996, 1997, 1999. (retired)

Offline Raider Bill

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Re: Would you buy used rafters?
« Reply #1 on: May 30, 2010, 07:35:53 PM »
I would provided they didn't look all tore up during removal.
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Offline isawlogs

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Re: Would you buy used rafters?
« Reply #2 on: May 30, 2010, 07:44:29 PM »
 I would go take a look , and if my eyes see good . in a flash .  8)  That is as cheap as you can get .
A man does not always grow wise as he grows old , but he always grows old as he grows wise .

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Offline Larry

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Re: Would you buy used rafters?
« Reply #3 on: May 30, 2010, 08:19:16 PM »
Used trusses wouldn’t bother me a bit if in good condition.  I might have to think a bit about 40' span, 2 X 4 construction, and not much pitch.  You will be restricted to 2' on center which may be ok.  2 X 6 trusses you might be able to go 4' on center.  You have much of a snow load?
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Offline gunman63

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Re: Would you buy used rafters?
« Reply #4 on: May 30, 2010, 11:43:47 PM »
40' span with only 2x4 material , i dont know if id trust  them, but then i live in snow load country. but if they were 2x6 or 2x8 on the bottoms  u should be fine

Offline Left Coast Chris

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Re: Would you buy used rafters?
« Reply #5 on: May 31, 2010, 12:49:53 AM »
A couple of things to consider:

1)  What snow load where they designed for and does it match the current snow load at the location you are planning to use them?

2)  If you are not going to support them with walls you will use beams.  If they are 40' span with a 2' over hang you have 22' tributary width at the bearing plate or beam you will set them on.   If the dead load is 10lbs per sp ft and the snow load is 30 lbs per sq ft you will have (30+10)x22' = 880lb per foot on a beam or top plate.  You will need a pretty large beam to span any distance with 880# per foot.   You will also need square footings sized for the point load at the ends of the beam.  Suggest you think through the design of your structure and permit requirements before you decide to go forward.   Will the County or City you are in require an engineer to design such a large building?

3)  Trusses or beams will take on dead load deflection that can become permanent.  Sight down the bottom chord and see if they have sag and how much they have.

4)  Be careful about hauling them laid flat.  The gang nail plates can be over stressed by bending in the flat direction if you pick them up with narrow forks in the middle.

Let us know if you go forward and post some pics!  Sounds like a fun project.
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Offline zopi

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Re: Would you buy used rafters?
« Reply #6 on: May 31, 2010, 12:54:51 AM »
No...but then I have a sawmill..:D

pretty much any building i build for myself will be optimized for interior space..I wouldn't really use modular trusses that interfere with loft space...I'd likely put up a timber/pole frame with kingposts...a loft that size will store a bunch of lumber...
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Offline logwalker

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Re: Would you buy used rafters?
« Reply #7 on: May 31, 2010, 11:55:16 AM »
Midwest Plan Service has a lot of info about trusses. You can find a close comparison for yours and get an idea of what they will hold up. I used there plans to builld my 32' span trusses. They are still up.  ;)

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Offline Gilman

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Re: Would you buy used rafters?
« Reply #8 on: May 31, 2010, 02:50:01 PM »
Thanks for everyone's input.

I did find this chart on trusses. http://www.square1truss.com/resources/RoofSpan.pdf
WM LT70, WM 40 Super, WM  '89 40HD
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