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+-- Thread: volume of quickcrete bag? (/showthread.php?tid=7341162)
volume of quickcrete bag? - goaliedad - 07-22-2018
how much volume will a bag of quickcrete make? pouring footings for my deck- I need to know how many bags to buy.
I think I am going to use 16 inch tubes, setting 6x6 posts- this will take more work and concrete, but allows for more adjustment of post placement.
16 inch diameter, 6 inches thick- how many bags of quickcrete per post?
I looked at several websites, and am not seeing the information I want. Plus you guys are much faster than me searching for the answer.
Thanks in advance
RE: volume of quickcrete bag? - jppierson - 07-22-2018
(07-22-2018, 01:10 PM)goaliedad Wrote: how much volume will a bag of quickcrete make? pouring footings for my deck- I need to know how many bags to buy.
I think I am going to use 16 inch tubes, setting 6x6 posts- this will take more work and concrete, but allows for more adjustment of post placement.
16 inch diameter, 6 inches thick- how many bags of quickcrete per post?
I looked at several websites, and am not seeing the information I want. Plus you guys are much faster than me searching for the answer.
Thanks in advance
There is a chart here to assist in calculating your needs...
https://www.homedepot.com/p/Quikrete-80-lb-Concrete-Mix-110180/100318511
So pi * 8^2 (radius of your footing) in inches divided by 144 to get square feet each pad is 1.4 sq ft for each pad. The chart says for each 2 sqft you will need 2ea 60lb bags, or 1.5ea 80lb bag. Hope this helps.
RE: volume of quickcrete bag? - goaliedad - 07-22-2018
Thank you!!!!..........!!!!!!!
RE: volume of quickcrete bag? - EightFingers - 07-22-2018
Shouldn’t that be cubic feet?
RE: volume of quickcrete bag? - carwashguy - 07-23-2018
(07-22-2018, 01:10 PM)goaliedad Wrote: 16 inch diameter, 6 inches thick- how many bags of quickcrete per post?
6" thick? You don't have to go below the frost line in Michigan? My footings have to be 48" here in Massachusetts.
RE: volume of quickcrete bag? - K. L. McReynolds - 07-24-2018
I poured a back deck step extension and used that chart. I was half a bag short. Use the chart, but allow for needing more.
RE: volume of quickcrete bag? - Roly - 07-24-2018
(07-24-2018, 12:31 PM)K. L McReynolds Wrote: I poured a back deck step extension and used that chart. I was half a bag short. Use the chart, but allow for needing more.
If you use the info they supply for the volume of a bag, 0.45 cu ft for 60 lb & 0.6 cu ft for 80 lb bag it will be short for the chart also. As you say add some if using the chart. Roly
RE: volume of quickcrete bag? - goaliedad - 07-24-2018
car wash guy the footing will poured in the bottom of a 54 inch deep hole. 48 inches of a 6x6 will be buried, setting on top of the footing.
The deck will be about 10 feet above grade- the buried portion will give the posts good stability