How many cubic meters of concrete will it take to pour a garage fool 336 sq feet 6 inches deep

Knowing how much concrete is needed for a job is an incredibly important thing. Nobody else, then professional concrete contractors like concrete contractors Rockville MD at:- http://capitalpavingconstruction.com/ can give you an accurate idea of how many cubic meters of concrete will it take to pour a garage full 336 sq feet 6 inches. Here you will find helpful hints and information about calculating just how much concrete mix you will need for your job.

Since it's 6" deep then it's half of your surface sq. footage = 168. That converted to cu. meters is 4.8 cubic meters as 1 cu ft = 0.0283168.
That said if you live where there is frost in the ground, the building code may require a bit of a deeper footing around the perimeter so it's best to check your local building codes.

Figure 1 90 lb. bag per square ft., 6" deep.
Don't forget sand to grade and rebar to reinforce.
You probably won't find enough guys to mix all that concrete, so you'd really be better off hiring a concrete truck.
Tip: It's best to over estimate a little so you won't be caught short.