The total concrete needed for the 3 by 3 porch will be 28 cubic yards.
12 cubic yards of concrete.
6783 1728 3 93 cubic feet.
0 80 tons 1 596 lbs concrete needed bags 19 95 bags of 80 lbs each or 26 59 bags of 60 lbs each or 39 89 bags of 40 lbs each.
Calculate for quantity of items to fill for a total project need of cement in cubic feet and cubic yards.
11 17 cubic yards 28 cubic yards.
For 4 inch post diameter 12 inch hole diameter.
Convert the volume to cubic yards from cubic feet.
To do so divide the cubic footage by 27 to get the yards of concrete needed.
The porch also has 9 linear feet of 6 step.
A typical concrete mix weighs 150 lbs per cubic foot 4 050 lbs per cubic yard or 2 400 kg per cubic meter.
Dividing cubic feet by 27 a cubic yard will give you the concrete yardage.
It is worthwhile to ask your supplier if they will sell a partial yard of material but the most do not.
If you divide 3 93 cubic feet by 27 3 93 27 146 cubic yards.
0 444 cubic yards 12 ft 3 concrete needed.
Calculate concrete volume and cost of concrete slabs footers walls columns steps curbs and gutters in cubic feet cubic yards and cubic meters.
Round up to the nearest yard as most suppliers will likely not sell fractions of a yard.
You can use this measurement to figure out how many bags of concrete to use.
Ready mix concrete is pre mixed in batches of 10 cubic yards or more and includes delivery up to 20 miles for 119 to 147 per cubic yard the quality of ready mix concrete is much higher than short load delivery because the concrete is precisely prepared at a mixing plant.
This totals 17 cubic yards.
0 444 cubic yards 12 ft 3 total volume.
You can use this concrete calculator to help you determine the number of bags of quikrete concrete mix mortar mix or fast setting concrete you will need for the following projects.
The weight of concrete is determined by its density which can vary based on the amount of aggregate water and air in the mix.
This would be good to know if you had a lot of sono tubes or a large cylinder to fill.