Browse Forums Paving & Concreting Re: How to calculate how much concrete I need?? 4Jan 01, 2013 2:42 pm Ice ice baby Hi I'm working on a project and I'm up to the concreting but I don't know how much to buy. I know how to calculate the volume of a square but this one's a really odd shape (a sort of weird circular shape) & I don't know how to work it out. Any ideas?? Don't try to be too exact. You'll end up running short. If it's a concave arc just calculate the areas you can and then halve that arced area. Then add 10-20% to the total Building a Delta 21 at Craigieburn - http://homeofzero.blogspot.com.au/ Deposit: 26/02. Contract: 22/05. Settlement: 29/05. Site start: 18/10. There is nothing in the various codes and standards that puts this requirement on the builder to do. I think that is what you are asking. Don't waste time trying to get… 5 2401 7 11992 |