From BYOAC Wiki
- This will probably be your most vital tool. The common examples in this category include the standard tape measure, a T-square, a basic ruler or yardstick, framing square, etc. The most important thing to remember when measuring is to ALWAYS repeat your measuring and marking process wherever possible.
- This means if you hook the edge of your tape measure over your material and pull the tape measure out to the desired length, do this for EVERY measurement if possible. Changing the METHOD of measurement may end up with your markings being a fraction off here or there. Murphy's law dictates that you will not find this out until your most critical piece needs to be cut and you find yourself with the odd measurement that is off by just enough to cause you problems!
- Consistency throughout your project will be rewarded with fewer problems in the end.