Concrete yardage calculator

For metric concrete quantities and costs go to the concrete calculator - metric page.

Slabs, Footings, or or even Walls

Here is a quick little form that will give you accurate concrete yardage for small projects.

• Note, no allowance is made for waste, you have to allow that yourself.
• Once again we are faced with how much extra to allow for spillage and maybe if we are talking about flatwork the fact that the forms are set up on rough ground.
• Personally I like to do the measuring up the day before the pour without the rush and pressure of attending to last minute items .
• The actual arithmetic for this is very basic, length X width X depth. The skill that comes with experience is gaining a good eye for averaging uneven surfaces, or more to the point, at the end of a full truck load being able to do a really quick estimate of what is left to be done when re-ordering that extra amount.
• There is an imput here for the value of say ready mix concrete. Again this is a very simple calculation with no allowance for waste, waiting time or distance from supply etc. Any of which factors may alter the price.

Post Hole, Circular Column, or Augured Footings

I must have done many dozens of angered foundation holes for steel RHS columns, but I never used to bother with pi R squared to get the circular area. I would look at a hole that had been augered with a machine like above with a 2 ft dia. and just average it roughly at say 1.8 ft square and in the scale of things it was close enough.

If you are looking for something more detailed then bookmark this page and call back later because I intend to work steadily on this section of the site to make it far more detailed. With things like cement, sand and aggregate quantities needed for mix on site work.

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