About this Concrete Crack Ruler:
- To use this concrete crack ruler calculator, simply enter the width, length, and thickness of your pour.
- The calculator will estimate the number of cubic yards of concrete that will be required.
- It is comparable to the official Elcometer 143 crack width ruler.
- Imprint your company name and logo on the center to promote paving companies, developers, home improvement stores and more!
NOTE: Product comes with Prop 65 warning label when shipped to California. Label reads: "WARNING: This product may contain carcinogen, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.