Can I Set A Cabin On Top Of Mobile Home Slab? - Building & Construction - DIY Chatroom Home Improvement Forum

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Old 03-22-2008, 02:22 PM   #1
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Can I set a cabin on top of mobile home slab?

Hi, all. I live in Maine and need some advice on an alternative use for my mobile home slab. I'd like to sell my 14 x 60 mobile home, go with a year-round stick built cabin instead and use the existing slab as its foundation. I have a standard mobile home 6" non-reinforced slab; in other words even though it's braced with rebar, it does not have footings below the frost line under the corners. I've been told different things by different builders about whether building or setting any structure other than a mobile home on top of my slab is a good/safe idea. One guy said it would be fine as long as I didn't add a 2nd story. Another builder said not to, as the added weight could cause stress fractures or frost heaves in the cement. A cabin builder made the most sense when he said as long as you can distribute the weight evenly over the slab, there should be no problem at all, even in the northeast. He builds his cabins on his site and delivers them to the customers who can finish them later if necessary, which I would do. The cabins are constructed on 2 x 6 pressure treated runners, which would serve the function of distributing the weight of the cabin across the slab. Although he was the one who came up with the idea and was willing to deliver it that way, he'd never actually dealt with a customer who planned to use the cabin as a year-round structure, which poses new questions/challenges in this case! Anyway, what are people's thoughts on this? Thanks in advance.


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Old 03-22-2008, 04:11 PM   #2
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I would think the local Building inspector would make you expose the existing footings to see if the bottom of the footing is below the frost line. If you have to expose the existing footing you might as well keep digging for a trench pour all the way around. If you are using a machine that is. I wouldn't build on a slab without no footing under 90% of it. Frost is very powerful.


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Old 03-22-2008, 05:30 PM   #3
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just curious, how would plumbing be installed or are pipes already in slab?
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Old 03-22-2008, 05:54 PM   #4
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You want to build a 14x60 stick built cabin on your 14x60 floating slab,..??
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Old 03-22-2008, 06:06 PM   #5
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No, you can't use the slab for a log home. The slab was engineered for a structure far lighter then a log structure.
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