Newbie bench install

[eagle]

Hello, I am planning an eagle scout service project and I have just a little experience :oops: construction and I was hoping you guys could help me out. I am installing 3 metal benches for a local park. I will need to set the benches in the ground, and I estimated diameter of the two "feet" to be 2 inches diameter and the feet are probably 4 feet long. I plan to dig a couple of post holes ~2 feet, then line the bottom with gravel/sand 2". I was then planning on filling the holes with the feet in them. I was planning on using some sacrete/concrete to fill in. I can use online calculators to measure how much I would need for these holes, but I do not know how much of a yard is in the standard 80lb bag. Please tell me how much a bag makes and if there is anything else I should remeber when installing the benches. I hope this doesnt waste your time.

[Rich]

I used to remember this - been quite awhile since I mixed any concrete by hand. I'll get back to you.

[Rich]

Ok.. I found a website that shows all the yield for all sakrete products.

http://www.sakreteconcrete.com/products.html

Hope that helps.

[eagle]

Thanks, just what I was looking for.