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Shipping Container Garage

TheWalrus

Active member
Joined
Jul 7, 2020
Messages
32
Location
UK
Hi all!

I'm currently working on making a shipping container garage! There's lots of reasons I'm going down this route, mainly budget restrictions, as for what I want this offers the best value.

I have a site thats being cleared ATM. It's on a farm, and they are ok with me using this for hobby vehicle maintenance. I've no space at home.

The plan is to get two 20' shipping containers, fix them together and cut out the 'party walls' to make a workshop space that will measure approx 20' x 16'. Buying containers with a wind & watertight guarantee means they shouldn't leak (except where I cut em!), they will be secure and if/when I want to move or sell them they can be dismantled and transported. Similarly priced pre-fabs & metal buildings come in at twice the price I'm looking at, even after fitting them out (mainly insulation to reduce condensation).

My main question at the moment is foundations. I can make whatever foundation I like - site owner is happy for me to do whatever - so I'm trying to find the best option on a budget.

The site has a slight slope, meaning ground level at the back is about 18" lower than the front (20' apart). Being a container they technicaly only need supporting at the corners, so I don't need to pour a whole slab. I'm currently looking at making concrete piers - ground is a mix of sand & clay.

I saw a video tonight of a builder using heavy (1") threaded bar to make garden room foundations - less concrete to pour, and easily height adjustable. I can make/weld pads for ISO container corners. Would it take the weight/cope with movement (e.g. my car being driven in/out)?

Any other options/suggestions?
 
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txvwnut

Well-known member
Joined
Jan 1, 2015
Messages
7,629
Location
Bedford, Texas
I would do at the very least 12" diameter concrete piers on all corners with weld plates to weld the containers to. I wouldn't trust a 1" rod to contain the static weight, the shifting weight when you pull a car in or out or just the wind loading the building will see. As for pier depth if you were working with a level site I would say 18" would suffice but since the lot slopes your back piers will of course be taller than the front.
 

nadogail

Well-known member
Joined
Jan 23, 2009
Messages
31,961
Location
Coronado, CA
Welcome to the forum.

I love the idea of re purposing shipping containers. One guy stacked four long containers in two row and put a roof over the open space. He closed up the ends with Chain Link fencing.
 
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TheWalrus

Active member
Joined
Jul 7, 2020
Messages
32
Location
UK
@txvwnut - good point about the wind loading. It is a windy site - last year they had a whole (2 tonne timber) field shelter blow away; it rolled over several times and stopped upside down in the road! Concrete is the way, I think. My father in law is a retired civil engineer - he's offered to help with foundations (although there is a danger it could be better built than the M4...).

@nadogail - there is currently another storage container with a caravan between it and my unit - they want to do something similar to store machinery. Not using the panels I cut out though - they've already been earmarked for making a muck heap containment area.
 
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TheWalrus

Active member
Joined
Jul 7, 2020
Messages
32
Location
UK
It's been almost a year since I posted here - but they finally arrived today!
 
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