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abrogard
Joined: 23 Jul 2009
Posts: 3
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 Posted: Thu Jul 23, 2009 2:58 pm Post subject: How Do I (non-architect) Design A Shed? |
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I want to design and build my own 10m x 6m steel garden shed.
Seems simple enough to me. You could virtually do it by copying a sample shed anywhere.
But I got Lysaght's 'Referee' and thought I'd start there and build a knowledge of what I was doing and why.
So I started at the top, with the roof, thinking the fame would have to be strong enough to keep the roof up and the cladding was just that: only cladding.
Roof, corrugated iron, no problems, the Referee said supports required at such and such distances. No problem.
Now the supports. And an immediate dead stop. For there's no indication in the Referee that I can find of which C sections I should/could use for supporting whatever roof.
No tables of supports required for the C sections when used as purlins or rafters.
I need to identify what size C sections I need to support the roof and then I need to identify what supports THEY need... and so on.
Apparently I'm missing a book of some sort. Or perhaps even ( could I be so lucky? ) a piece of software.
As a non-architect I apologise to you highly trained, highly technical professionals and hope you won't mind me barging in with my little question.
I would like to ask it and hang around absorbing what I can - I've got an interest in developing some skill with some kind of design software, even if only Sketchup'.
But if non-professionals are not really wanted in this forum just tell me, I'll understand and will quietly fade away.... hoping to get some clues as to where I can solve my little problem first, though......
regards,
ab  |
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djswan
millennium club
Joined: 17 Aug 2007
Posts: 1121
Location: Montana, USA
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| Posted: Fri Jul 24, 2009 9:50 am Post subject: |
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Do you have some steel? I would go look for some on steel sheds.
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abrogard
Joined: 23 Jul 2009
Posts: 3
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| Posted: Fri Jul 24, 2009 2:22 pm Post subject: |
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No, I don't have any steel. When I've got it designed I'll buy the steel and build it.
I'm looking for some help in designing it correctly from an engineering point of view.
That would be beyond the scope of an ordinary guy if it were anything else - a house for instance, I guess - but a small shed? Should be a trivial exercise architecturally speaking.
The whole thing might be so trivial that a knowledgeable person (architect or builder, perhaps) might set me straight with a simple table or even instructions as simple as (off the top of my head) :
for 10m x 6m flat top shed:
0.4mm corrugated sheet on top 6m sheets across the top
74 x 1mm C sections under the sheet at required spacing. 10m lengths.
150 x 1.6mm C sections under those at 3m spacing. 6m lengths.
Those resting on wall top C sections 150 x 2mm.
Wall tops supported by uprights at the corners and halfway down each long wall 90 x 90 x 2.5 galv RHS.
How reasonable that is I don't know. But it is the kind of directions I'm looking for and would accept to work on.
Ideally I'd like more information as to why? i.e. why support the 10m sections at 3m ? Legal requirement? (different in every different country I guess so any legal requirement spec would have to have the country of origin stated) Or a technical engineering fact?
Knowledge of the latter would be good. Then I'd be learning, I'd be better informed as to what I'm doing.
ab |
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SDR
millennium club
Joined: 02 Oct 2004
Posts: 1846
Location: San Francisco
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| Posted: Fri Jul 24, 2009 10:23 pm Post subject: |
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Unoccupied space ? Probably no legal requirement.
Snow loads ? |
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lekizz
millennium club
Joined: 11 Jan 2006
Posts: 1212
Location: UK
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| Posted: Sun Jul 26, 2009 10:03 am Post subject: |
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| Quote: | | I'm looking for some help in designing it correctly from an engineering point of view. |
The normal course of action for such a large building would be to ask an engineer. What you are building is 10 times the size of my garden shed. You could park several farm vehicles in yours!! I'd be surprised if it didn't need to meet building codes (it certainly would if it was in the UK). |
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abrogard
Joined: 23 Jul 2009
Posts: 3
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| Posted: Sun Jul 26, 2009 2:22 pm Post subject: |
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I tried to reply yesterday but got locked out because, it claimed, I had tried to post 'spam' !!
But it seems okay today... except it might happen again when I press the 'submit' button.... we'll see....
A 10 x6 shed is not so large, really. But, admittedly it is a comfortable size, that's the point of building it.
There should be room in there for a couple of workshops - one for mum, one for dad, and room for the kids, too...
Don't get the wrong idea. It'll only be a couple of metres high. Nothing special.
We need building approval for anything over 15 square metres. And the approval, of course, is contingent upon meeting building codes. Perhaps building codes is where I should be looking for construction details.
But ask an engineer? Well that's what I'm doing in this forum... |
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lekizz
millennium club
Joined: 11 Jan 2006
Posts: 1212
Location: UK
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| Posted: Tue Jul 28, 2009 1:03 pm Post subject: |
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I'm really not sure whether to take you seriously
So you want to build 60 sq m of workshops for your parents and your children, but are happy to endanger them by designing it yourself, with no building or engineering experience at all, using an internet chat forum!!!
In my opinion, you really need to pay for some professional advice, particularly an engineer, if you intend to build it using steel. Otherwise maybe stick to something less ambitious, such as a small wooden flat-pack shed from your local builders store  |
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djswan
millennium club
Joined: 17 Aug 2007
Posts: 1121
Location: Montana, USA
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| Posted: Tue Jul 28, 2009 1:58 pm Post subject: |
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I'm not taking it seriously until he finds some steel...designing without knowing the materials. tsk tsk. You want a steel shed, I can get you a steel shed, I'll have a steel shed to you by three o'clock and painted.
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