How many cu ft do i get from a 80lbs premixed concrete bag?

Question

How many cu ft do i get from a 80lbs premixed concrete bag?

Answer 1

An 80lbs bag  is .6 cu. ft. If you have a lot of concrete to do, you may want to consider ordering from a redi-mix company. A yard is 27 cu. ft., or 3' x 3' x 3'. That means that a yard of concrete would take 45 80# bags. At 6" deep, a yard covers 54 sq. ft. At 4" deep, a yard covers 81 sq ft. Hope this helps.

Answer 2

You will get 2/3 of a cubic foot.

A yard of concrete has 27 cubic feet - so it would take almost 41 bags of the 80lb. concrete mix to equal 1 cubic yard of concrete.

The only advantage to using bags vs. concrete delivered is if you are doing a small project like a sidewalk, small slab 4'x4' or less, or you have plenty of manpower/womanpower, and you don't mind mixing the concrete.

Depending on where you live, ready mix truck delivered concrete is around $90-$120 per yard. A bag of 80# concrete mix is probably around $3.00 - $4.00.

Your choice !