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14' x 32' Hip Roof building

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Forum topic by cyberdave posted 09-13-2020 08:54 PM 404 views 0 times favorited 11 replies Add to Favorites Watch
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cyberdave

3 posts in 82 days


09-13-2020 08:54 PM

Topic tags/keywords: framing generalconstruction

I’m in the initial stages of designing what I hope to be my storage shed / workout room once finished.

I’d like to have as much ceiling room as possible to hang gymnastics rings and pull up bar from the ceiling. I plan to use collar ties and plywood plates with wood glue and nails at the ridge beam.

I live in florida zone 10a so there will be no snow load. I’m planning to use TimberLok screws along with hurricane clips and yellow wood glue to tie all roof members to the top joist.

So my question is do I need ceiling joists with a hip roof at this 14’ x 32’ dimension?


11 replies so far

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CaptainKlutz

3859 posts in 2417 days


#1 posted 09-14-2020 01:35 AM

Welcome to LumberJocks!

Suggest you contact a licensed architect, structural engineering service, or the local building code AHJ in your area.

Gymnastic equipment is considered a LIVE load, and presents different structural requirements than static (or snow loads). Florida also has higher wind loading requirements for habitable structures, than standard tables.
While you might be able to get away than minimum requirements, something recommended on random internet forum; failure to met proper code(s) will negate any/all insurance coverage for the structure in case of loss. DAMHIK

Be safe, not sorry!

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

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gdaveg

54 posts in 124 days


#2 posted 09-14-2020 02:03 AM

Cyber D,

Yes I would contact a structural engineer. If you call an architect he will tell you the same. I am a structural engineer now retired after 40 plus years.

Now that you already have it built the retrofit will be more difficult.

But do get an engineer involved and tell him your plans and wishes.

Dave

-- Dave, Vancouver, WA

View ibewjon's profile

ibewjon

2154 posts in 3715 days


#3 posted 09-14-2020 12:37 PM

Think about this. Where have you seen a building without ceiling joists?? There needs to be something to pull the walls together against the down and out pressure from the roof. Have you seen any building like this near you? If not, that would be your answer. It would be common practice if it worked due to reduced material costs and gained open ceiling space. Talk to a structural engineer.

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tomsteve

1095 posts in 2141 days


#4 posted 09-14-2020 04:21 PM



Think about this. Where have you seen a building without ceiling joists?? There needs to be something to pull the walls together against the down and out pressure from the roof. Have you seen any building like this near you? If not, that would be your answer. It would be common practice if it worked due to reduced material costs and gained open ceiling space. Talk to a structural engineer.

- ibewjon

although using collar ties was mentioned codes in some areas may say the plywood gussets suffice. fla zone 10 might be one of those places codes say plywood gussets suffice,although id put in collar ties.

View JohnDon's profile

JohnDon

136 posts in 2092 days


#5 posted 09-14-2020 05:09 PM

flying buttresses?

View ibewjon's profile

ibewjon

2154 posts in 3715 days


#6 posted 09-14-2020 06:41 PM

That would look great on a shed!

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AndyJ1s

476 posts in 677 days


#7 posted 09-14-2020 07:02 PM

Is there even a ridge beam in the pictured structure?

Definitely seek professional design/analysis help.

-- Andy - Arlington TX

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cyberdave

3 posts in 82 days


#8 posted 09-14-2020 07:14 PM

Just thought I would clear a few things up:
The first picture is the current sketchup model of what I plan to build.
The second picture is something I pulled off of a commercial shed building company’s website gallery showing the internal framing for a 14’x32’ shed. “Just using that second pic as an example of what I want to do.“
I do plan to overbuild the rafters, using 2×6 instead of 2×4. And I plan to have a ridge beam with collar ties and large gusset plates on the common rafters.

I’m working on the hip roof design in sketchup and I’ll have a better 2d picture similar to the first pic but with the roof framing soon.

Thanks to everyone for responding to my post so far! I may heed the advice to send this to an architect for review but I would really rather not engage an architect.

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ibewjon

2154 posts in 3715 days


#9 posted 09-14-2020 09:54 PM

Not getting professional advice on this is called Pay me now, or pay me later. There is a recent post about advice for a shed / shop in tennessee. The writer ended up tearing up all he had done and starting over. Very expensive mistakes in that case. At least we now know you have not started construction.

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cyberdave

3 posts in 82 days


#10 posted 09-14-2020 10:06 PM

This image is a 2d representation of my hip truss framing. Notice the interior wall which allows for some bearing of the ridge beam.

Another question is regarding making the walls higher by 1’, after adding the gussets I’m only left with a 9’6” ceiling.

View bigblockyeti's profile

bigblockyeti

6842 posts in 2643 days


#11 posted 09-15-2020 02:48 PM

Are you planning on paneling or otherwise sheathing the interior? If not, you have the option of using studs in length of 8’, 8’ precut, 9’ precut or 10’ adding only to the cost of the exterior as you go up. If you are putting something up inside, it would make sense to have the walls a height that would require minimal cutting of whatever you’re putting up inside.

-- "Lack of effort will result in failure with amazing predictability" - Me

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