Check the height between the seventeenth fret and the bottom of each string (Refer to the specifications chart for the proper measurement). For acoustic guitars: Check the height between the fret located at the neck and body joint, and the bottom of each string (Refer to … The following setup procedures and specifications are for your Stratocaster as equipped with the strings that come on the instrument as standard equipment from the factory. In order to measure the height of your guitar’s strings, you should have either a ruler, a feeler gauge, or a specialized string action gauge. I am very aggressive with my lower strings when I play rhythm so I like my low strings set at a higher action to get rid of unwanted buzzing. If you plan to change string gauges, you may need to adjust the specs somewhat to compensate for the changes in string sizes. For electric guitars, in our opinion, a good default string height at the 12th fret is typically about 6/64th of an inch (2.38mm) on the bass side and 4/64th of an inch (1.59mm) on the treble side. String height, or action, is highly customizable on the Fender Stratocaster. That’s good because almost every player needs a custom string height to suit their own personal playing style.