ᐅ Concrete slab or strip foundations for garage

Created on: 15 Jun 2015 11:09
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SaRo2000
Hello everyone,

My boss and I will be building our own home in the next few weeks/months. Everything is basically settled. Now we are planning a double garage (consisting of two single garages each measuring 3m x 6m x 2.60m (10ft x 20ft x 8.5ft)) with a walkable roof, to be used as a terrace. We already have a quote from a prefabricated garage manufacturer, where the strip foundations are priced at €3,800. We have also read that a concrete slab foundation costs between €70 and €100 per square meter.

What are the advantages and disadvantages of both options? Would a concrete slab be overkill, and are these strip foundations really sufficient? Or if a concrete slab is poured for the house, could you just as well pour a slab for the garage at the same time since the concrete trucks are already there?

Since I’m not a professional or even an amateur (both thumbs pointing to the right), please keep explanations as simple as possible, like:

“Look… the wood… it goes there.”

Of course, the question of costs involved also remains.

Best regards,
SaRo
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Sebastian79
15 Jun 2015 13:44
Do you really find the strip foundation affordable? I pay 45 euros per linear meter plus tax – plus excavation, which isn’t really that much.

I would ask the structural builder or a similar professional about this, rather than having the garage manufacturer do it.
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Doc.Schnaggls
15 Jun 2015 13:49
Well, I’m not really familiar with the prices in Berlin, but for Baden-Württemberg, EUR 3,800.00 would already be a very good price...
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SaRo2000
15 Jun 2015 14:05
I will research this again. But I also believe that when the concrete slab for the house is poured, you can basically pour the strip footings at the same time. That would make it more efficient. I will look into it.

Best regards
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Sebastian79
15 Jun 2015 14:06
However, doing the dishes yourself hardly makes it any cheaper.
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SaRo2000
15 Jun 2015 14:13
That’s what I feared, but once the concrete is poured, it’s done and the work itself is completed. If the price difference isn’t too large, I’ll have to inquire. At least we could then check off this step.
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Sebastian79
15 Jun 2015 14:15
That's true – however, it was also necessary to check whether it was feasible together. In our case, because of the basement, it wasn't possible; we only had it poured once the ground-floor slab was in place. Additionally, bearing ledgers had to be built into the floor – but only for the basement construction and the adjacent garage.