How do you figure out how much concrete to order?

Answer 1

Concrete is usually measured in Cubic Yards. You normally have linear feet and inches for measurements. The basic equation for volume is simple: h x w x d = V Where: h = Height, w = Width, d = Depth, V = volume So if we have a slab that is 32 feet by 26 feet by 4 inches, first we must have all measurements in the same units. 32 feet = 384 inches. 26 feet = 312 inches. The depth (or height) is already in inches, 4. So we need to know the following: h = 4, width = 312 and depth = 384 inches = our volume or how many cubic inches. With that in mind, then: h x w x d = V 4 x 312 x 384 = V 4 x 312 x 384 = 479232 cu. in. Now how do you turn Cubic Inches into Cubic Yards? There are 1728 cubic inches in a cubic foot. So 479232 cu. in. divided by 1728 = 277.33 cu. Ft. There are 27 cubic feet in a cubic yard, so 277.33 cu. Ft. divided by 27 = 10.27 cubic yards. So, if I had to pour the pad, I would order 10 1/2 yards of concrete to get the job done. I hope this helps you understand how to figure volume for an area and depth. This same equation can be used to compute all area to volume conversions for homeowners. You would use the same steps to convert your yard measurements to figure top soil. There are web sites (like this one http://www.easysurf.cc/cnver7.htm) that can give you conversion factors for just about anything.