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Old 12-09-2018, 08:31 AM   #1
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Another Load Question


I'm thinking about more stuff for my garage project again.
(stuck inside with 'historic snowfall' will do that)

The building is 24x16 with 2x4 trusses on 24" centers across the 16' width.
< ---X---------X---------X---------X----------X---------X--- >

Questions:
1) How much weight can typically be supported off one bottom chord?
2) And with something (2x8?) spanning THREE bottom chords?

(I'm thinking about a chainfall/hoist and motorcycle or jet ski engines)
Thanks
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Old 12-09-2018, 08:45 AM   #2
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Re: Another Load Question


https://www.selecttrusses.com/truss-calculator/


Truss load calcuator
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Old 12-09-2018, 08:48 AM   #3
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Re: Another Load Question


In general, trusses can support their own weight plus sheetrock. That is what the truss manufacturer will make clear to you. Of course with center span support, they can handle much more, but I would be reluctant to test it.

Will the chain fall be on a rail or stationary? Would not a swingset type support work? Some are on rollers and some just come apart after use. Just a suggestion.
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Old 12-09-2018, 08:59 AM   #4
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Re: Another Load Question


How much weight? and after you have it set up and something else comes up, how much is too much?
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Old 12-09-2018, 09:13 AM   #5
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Re: Another Load Question


Thanks for all the warnings...

IF, a big dam if, I do this it would be at a single spot and not on a rail...
(a rail/beam probably weighs more than a MC or JS engine).
The whole point (IF I do it at all) is to NOT have something else in the space.
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Old 12-09-2018, 09:26 AM   #6
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Re: Another Load Question


I am sure it would be no different than a 200 pound man walking around up there when the roof was assembled, I would still add ply wood gussets from the bottom cord to the top cord so you are using the strength of the top cord.
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Old 12-09-2018, 10:56 AM   #7
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Re: Another Load Question


Quote:
Originally Posted by Nealtw View Post
I am sure it would be no different than a 200 pound man walking around up there when the roof was assembled, I would still add ply wood gussets from the bottom cord to the top cord so you are using the strength of the top cord.

There ya go... that's the sort of information I'm looking for. Thanks Neal.
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Old 12-09-2018, 10:59 AM   #8
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Re: Another Load Question


Quote:
Originally Posted by TarheelTerp View Post
There ya go... that's the sort of information I'm looking for. Thanks Neal.
Not sure it is even a consideration when some one hangs a chandelier.
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