How Do You Calculate Irregular-Shaped Concrete Yardage?
Building a concrete slab or pouring your own concrete pathway can be a fun but challenging weekend project. Once you have figured out where you want your concrete slab or path, the next step is to calculate the amount of concrete to purchase. Concrete is solid in cubic feet: Normally you would multiply the length x width x height to find the volume; however, if you have an irregular shape, you are going to need to take an additional step or two to calculate the correct amount of concrete. Draw a rough picture of the area you want to pour concrete into. This does not have to be to scale. Break your picture up into regular geometric shapes like squares and rectangles. For example, an L-shaped plot can be broken up into one square and one rectangle. Number the individual shapes on your diagram. For example, if you have three rectangles, label those rectangles 1,2 and 3. Measure the length and width of the first shape, and then multiply these measurements together. For example, if your fir
