For one a traditional garage is much simpler structurally.
Basement under garage floor.
In order to put a space underneath.
Garage basement vs floor garage.
They require a great deal of support underneath and that s best provided by undisturbed earth.
Most garage floors are constructed with slab on grade method as the cost of supporting vehicles with a finished basement is too costly to justify the added space.
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When the foundation was installed a special cut out or shelf was poured for the garage walls.
There s a reason you rarely see basement space under a garage even on new construction.
How does the more common floor garage compete against a basement garage.
I am looking for concrete manufactures in my area who manufacture prestressed floor panals for the load bearing garage floor.
Looking to build a 24 40 detached garage with a basement under the garage in about 6 months.
If you are just in the planning stage it would be best to avoid any basement area under the garage.
The advantages that a floor garage has over its competition are immediately obvious as they are the opposite of the underground variant.
How to have a full basement under your garage.
Then you have the issue of the garage slab excavating under it would be no use because it is not reinforced to span any distance anyway so it has to be taken out for excavation then replaced with a floor strong enough to support vehicles expensive in itself because most areas require a 50psf live load for garage floor design and some are.
The floor planks are installed on the shelf with no support.