Have you ever wondered what the hash marks, black diamonds, and red squares on a tape measure mean? We'll help crack the code—and show you how to use the tool.

They can be used to make a mark on the wood. The casing is also its own measuring tool. On the back, it will tell you how long it is so you don't have to curl the tape to measure a tight space.

The diamonds on your tape measure, sometimes known as joist marks, indicate the spacing between each joist center. The ...

They’re ‘truss marks’ for 19.2-in ... You’ll find magnetic hooks on tape measures from Husky, Kobalt, Lufkin and many other ...