They build garages for a living. The told me a base would be concrete sections on top.
They didn't say how deep they will dig but quoted £800 for base only.
Concrete garage base thickness.
- Thread starter Adam68
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They didn't say how deep they will dig but quoted £800 for base only.
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It is possible to build blockwork off a slab, but most builders won't do it because there is the the chance of cracks developing and foundation problems can be expensive to correct.
With a sectional garage a small amount of movement isn't a problem, whereas cracking in the blockwork normally has the customer back on the phone to the builder.
With a sectional garage a small amount of movement isn't a problem, whereas cracking in the blockwork normally has the customer back on the phone to the builder.
This is the quote I got from a guy who would build a base for sectional garage . It's same as block build method.
After my site visit I have pleasure in submitting the following quote.
Dig and lay footings to build small retaining wall to three sides of garage base.
Supply materials and build retaining wall in concrete block.
Supply and back fill base to level at 6’’ depth
Supply and lay 2’’ of hardcore to garage base 19’x 10’ and compact down.
Supply and lay 4’’ of concrete to base 19’x 10’.
Total £1200
After my site visit I have pleasure in submitting the following quote.
Dig and lay footings to build small retaining wall to three sides of garage base.
Supply materials and build retaining wall in concrete block.
Supply and back fill base to level at 6’’ depth
Supply and lay 2’’ of hardcore to garage base 19’x 10’ and compact down.
Supply and lay 4’’ of concrete to base 19’x 10’.
Total £1200
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Eh?
So basically since the sectional pieces are long they won't crack but may lean over time. We have a sectional Compton garage built 30-40 yrs go which is leaning as the base is cracked. We bought the house with it and was thinking of getting rid. Heard Compton garages are good so may repair instead .
He said the base should also stop any movement as I was complaining about the footings.
How will that work? There will be (should be) polythene under and up the sides of the slab. The two are not 'connected' in any particular way and certainly not enough to reduce the influence of foundations on crap ground.
Think he was probably just reassuring me by chatting it.
Just spoke to him sheet going under concrete slab. Hardcore will be stones and broken bricks within the soil removed and soil. Compacted down.
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The actual end wall to wall measurements on both sides are 330cm. I'm amazed by the accuracy of the builder to within 0.5cm. We managed to get it to 11ft wide. Door is 7ft wide which with side pillars leaves about half a foot for frame.
Concrete Base will start tomorrow hopefully.
Concrete Base will start tomorrow hopefully.
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Seems strange that a guy whose charging half cost of garage is using only 2inch hardcore and 4 inch slab. Hope to go 5-6 inch slab and 6 inch hardcore.
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It's only costing £2500 what did you expect, anyway I am not saying anymore.
Betcha he leaves all that rubbish in there before casting the slab.
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