What is the magic number for converting concrete?

The magic number for converting concrete refers to the weight of one cubic yard of concrete, which is typically estimated to be around 2,700 pounds. When dealing with concrete, it's common in construction estimating to use a simplified conversion factor that helps estimators quickly calculate material needs, costs, and loads. By using the number 27, estimators can easily remember that one cubic yard equals 27 cubic feet, which simplifies many calculations.

This means that when discussing cubic yards of concrete, the understanding that there are 27 cubic feet in that volume holds significant value, especially when making conversions and estimates for material quantities needed for a project. Hence, in the context of construction estimating, the number 27 serves as a practical reference point for figuring out how much concrete to order, how heavy it will be, and how to plan for delivery and placement.