80 Lb Bags Of Quikrete

gregj

Eastwing, what are you getting for volume when you calculate it and how did you calculate it? I could just tell you that you'll need about 83 bags (but get extra) but that wouldn't help you on your next project. So how are you calculating the volume? Explain and we can help you figure out what you're doing wrong.

harpomason

V = l x w x h length= 100+78+56 or 234"
234"x52"x7" = 25176 cubic inches
one cubic ft =1728 cubic inches
25 176 cubic inches = 14.569 444 444 cubic foot

Felix King

1 cubic foot is 1.67 bags of the 80 lbs. variety. You can verify this with the quikrete quanity calculator. It ultimately verifies that 45 bags is a cubic yard as well, which someone else stated.

So, using math to break down 34 inchesX 33.5 inchesX 5 inches will yeild the result of (dividing all by 12 so that cubic feet ist he common denominator which leads to 2.83 x 2.79 x .416, respectively) you end up with 3.285 cubic feet.

When you multiply the cubic feet you are pouring by the cubic feet per foot you get from a bag, then you get about 5 anda half bags of mix for your pour.

So, you are right in guessing 6 bags.

JonM

If you have Excel...this will give you all your calulations...download the "Free Concrete Calculator"

http://www.renovation-headquarters.c...e_or_Rectangle

lukachuki

Interesting that this fairly boring thread has the most views of any of the masonry threads. I suppose we can thank google for this.

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Less with the jaw more with the paw!

one man show

double A is correct

2/3 of a cubic foot

stuart45

Over 35,000 of these are mine. I find this thread really fascinating.

sitdwnandhngon

Why not just buy 6 bags, if you have an extra one you are out 4 bucks. Just skip lunch that day.

lukachuki

I feel for you! There is this thing we have over here in the States called hobbies. They vary a lot in shape and size and price, but we do them in order to improve the quality of our lives and to drive our wives nuts. Your really should consider finding one of these, for the sake of your health, sanity, and to relieve eye strain. If your short on ideas, I'm sure the good folks on this side of the pond could give you some great ideas, if you could just give us an in depth personality profile and let us know how much you would like to spend annually. Or, if that sounds taxing just make your way to the local supermarket and go to the magazine rack. Each hobby has its own publication, at least over here.

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"The problem with internet quotes is, you never know if they are authentic." -Abraham Lincoln-

Less with the jaw more with the paw!

stuart45

Thanks lukachuki,
Iv'e just googled American hobbies and have decided to collect cement bags from around the world, as this seems to be one of the most popular. Have you got a spare Quikrete one you could send me? I could let you have a 1822 Portland OPC original in good nick in exchange.
I can't reach the magazines I want as they are too high up on the top shelf.

dprimc

I have one left over from a current job. Was going to send it to you, until I check shipping prices. Maybe someone else has an empty one.

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stuart45

Thanks dprimc,
Don't worry about shipping it, I will get Barrack to drop it in next time he's over.

lukachuki

How about this....Due to the big pond separating us it makes the sending a tad difficult. How about you collect PICTURES of cement bags. To start things off I will send you these to get your collection rolling.

__________________
"The problem with internet quotes is, you never know if they are authentic." -Abraham Lincoln-

Less with the jaw more with the paw!

lukachuki

We are quickly ruining the value of this thread.




Isn't it wonderful....




.6 people. One bag of 80lb concrete pours .6 cubic feet give or take a teencie piece of aggregate. It says so on the bag. Now get out there and work work work.

__________________
"The problem with internet quotes is, you never know if they are authentic." -Abraham Lincoln-

Less with the jaw more with the paw!

Willy is

I doubt I will hurt the OP's feelings (the post is over 3 years old) when I wonder how a guy that does fencing has to start a thread on how asking much concrete he needs for his pour. (hint; read the bag. If you can't compute the cubic feet required, get a job in fast food)

One thing that is worth mentioning in this thread, or repeating;

The concrete posted in post #53 shows 2 different formulations. The "contractor mix" at Menards costs about the same but is much stronger, however, comes in 80# bags. The homeowner, "cr@p" grade is anemic, weak stuff that barely looks like it has any Portland in it. It's cheaper and more user friendly because it is in 60# bags, but essentially the cost per serving is about the same. This is a great example where you really don't get what you pay for. Always buy the better grade.

Also....to repeat..... buy enough to do the job. The expense in in your time, not the materials used.

For abetter quality job use enough material, dig deep enough, if needed flare the base, pour slightly proud of the surface and if possible slightly convex to move water away from the posts.

That is all.

Willy

stuart45

Thanks,
Here's one of our new hoddy, in touch with his feminine side.

ave

Stuart45, You have clearly missed your calling. Handbags for Hoddys sounds like a great name for a new business, if you can attract Hoddys like that.