Shed base construction
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Discussion

JimM169

Original Poster:

722 posts

139 months

Tuesday 9th July 2024
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Running out of storage space so looks like another shed is on the cards, probably going to go for one of the cheapy shiplap, apex roof style ones from somebody like Tiger sheds and size wise 10' x 8' should be about right.
Given the location and available funds the base is likely to be wooden bearers on concrete block piers, question is how many bearers and piers would I need? It looks like on this size of shed the pre-fab floor has stretchers that run across the width of the shed so the base ones will need to run the 10' length. (either in one length or I could screw together two smaller frames together)
Also given budget is pretty tight will I get away with 3x2s or should I really spring for 4x2s

markymarkthree

3,097 posts

188 months

Tuesday 9th July 2024
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Probably of no help. But i did a base for my son last year, out of used concrete fence posts, which were a "free to collect" on FB.

epicfail

237 posts

152 months

Tuesday 9th July 2024
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The thing leaning against the fence is the frame my old 10x6 shed was sitting on. Kept off the ground by a variety of slabs, blocks and bricks - the ground wasn't level - the shed was. This was down for over 12 years - the treated 3x2" timber was all rot free, The shed was solid enough to keep a motorbike.

JimM169

Original Poster:

722 posts

139 months

Tuesday 9th July 2024
quotequote all
epicfail said:


The thing leaning against the fence is the frame my old 10x6 shed was sitting on. Kept off the ground by a variety of slabs, blocks and bricks - the ground wasn't level - the shed was. This was down for over 12 years - the treated 3x2" timber was all rot free, The shed was solid enough to keep a motorbike.
Thanks, looks like you had a bearer every foot, any idea how many piers I would need to support the span?

hellorent

565 posts

80 months

Tuesday 9th July 2024
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I'd just use concrete blocks laid on their side and sunken into the ground, I've got a 10 x 9 shed resting on 3 x 2(with a damp barrier wrapped round the 3 x 2 ends) on top of the blocks, been there over 20 yrs with no probs

OutInTheShed

12,154 posts

43 months

Wednesday 10th July 2024
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JimM169 said:
Thanks, looks like you had a bearer every foot, any idea how many piers I would need to support the span?
Literally depends on how much weight you're putting in there and how much you're happy for the floor to deflect.

Mr Pointy

12,629 posts

176 months

Wednesday 10th July 2024
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Op, have a look at this thread where the poster is building a base for his shed/cabin:

https://www.pistonheads.com/gassing/topic.asp?h=0&...

CAS-wzwox

2 posts

14 months

Wednesday 24th July 2024
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Have you done the job yet?
I don't know if you'd thought about using plastic grids for the shed base?

I put some of these down from a company called IBRAN for a couple of storage sheds I built for a holiday cottage in Norfolk and the only prep work I had to do was level the ground. They've been there 7 years now with no movement. Just a thought.

KTMsm

28,982 posts

280 months

Wednesday 24th July 2024
quotequote all
I put treated 2x2 down on the grass for a "temporary" 12x12 shed

It ended up being there 8 years, I took it with me when I left - no issues and the bearers were able to be re used having been kept dry by the shed

Everyone seems to massively overbuild for a shed IME


BGARK

5,624 posts

263 months

Wednesday 24th July 2024
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Ground screws:




RC1807

13,389 posts

185 months

Wednesday 24th July 2024
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BGARK said:
Ground screws:



How big is the screwdriver?! yikes

dhutch

16,921 posts

214 months

Thursday 25th July 2024
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Mr Pointy said:
Op, have a look at this thread where the poster is building a base for his shed/cabin:

https://www.pistonheads.com/gassing/topic.asp?h=0&...
Nice.

I am confident that ground screws and or gravel+pad is the way to go in this, rather than laying a full slab to then build a timber floor on.

jodypress

1,980 posts

291 months

Thursday 25th July 2024
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I bought theQuickJack Pro kit last year for my 12x8

https://shedbasekits.com/product/quickjack-kit-12f...






Brilliant bit of kit, allows great adjusment for levelling. Much cheaper than diggin out, hardcore and concrete.
Shed has been up or over a year and no problem at all.