How To Calculate Concrete

In this video, I am going to demonstrate how to work out the area of concrete. For this video, I am going to demonstrate it based on building a concrete footing for a brick wall. The same principle would apply if you were going to concrete a driveway or a path.

So, down here, I have my wall, you need to measure past the length of the wall, add two marks on the floor, one here and the brick wall ends here, and then you need to go wider than the wall, so the brick wall is a hundred mil and you need to go past it as is demonstrated by the length of this brick. The reason we go past it is because the footing needs to hold the wall and to support the wall, for this demonstration, I have got the length and then the width and you need to know how deep you are going. With these three measurements, you times them together which gives you the area and I am going to show you how to do that now.

Right, now, we have our three figures, we times the length by the depth and the width, we times these together and it gives us our cubic meters. For instance, if I was going to concrete an area of 0.054 cubic meters, I would need approximately one ton bag of ballast and approximately five 25-kilogram bags of cement.

That is how you calculate concrete. .