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Any floor truss designers on here?

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Joined: 30 July 2019
Location: Hudson, WI
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    Posted: 06 June 2023 at 4:02pm
I have a question regarding using some extra (free) 20" floor trusses for my shop.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jhg Quote  Post ReplyReply Direct Link To This Post Posted: 06 June 2023 at 7:21pm
Do you have the specs on those? One way to get pretty close to knowing what you can expect from them is find your local code for floor load for residential. From those charts you can see how much you can span with what dimension trusses for an expected load. There needs to be a margin included.

An example is I was asked to install a large hot tub in an upstairs bathroom. The floor was rated for its current expected loads: (2x8's 16" OC) 12 foot span. To meet code with the added load of a full hot tub we needed to split the span to 6 foot with a 3"x12" LVL.
Industrial applications are different than a house with its minor loads (just people and furniture) but you will get the idea regarding safe practice.



Edited by jhg - 06 June 2023 at 7:22pm
1948 cj2a. Rebuilt L-head, steering, T90, WO 636, steering, brake lines. So far.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Scratch Quote  Post ReplyReply Direct Link To This Post Posted: 06 June 2023 at 7:29pm
I know what these trusses will span the way they are, they are rated to span 28’.  I only need them to span 16’ and I’m planning on cutting down and modifying the one end so that it will be the right length.

I had a close friend who was a truss designer that saw them and what I wanted to do.  He said it’ll be no problem and would send me the exact way I should modify them… unfortunately he died before we got a chance to hookup.
43 GPW 93487 Blk
44 GPW 230283 OD
46 CJ2A 50100 Tan
46 CJ2A 77632 Wht
47 CJ2A 141681 Grn
48 CJ2A 156240 Red/Yel
48 CJ2A "Lefty" 181341 Red
61 CJ5 123120 Tan
03 TJ Inca Gld
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jhg View Drop Down
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Joined: 07 Nov. 2016
Location: colorado
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jhg Quote  Post ReplyReply Direct Link To This Post Posted: 06 June 2023 at 8:41pm
If you can duplicate the end design (ie if the distance from last web to end is same as they are now, just shorter overall) for your intended span that will work. I don't know if that will work out but it needs to be pretty close.
Rated 28' span, for what load?

Regardless. Sounds like you can figure it out.
1948 cj2a. Rebuilt L-head, steering, T90, WO 636, steering, brake lines. So far.
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