I recommend BOTH a 16 Foot Tape Measure (with just inches) & Long Tape Measure (with imperial/metric). (The 16′ is used daily, and the long tape measure only when required, like needing metric, or long-distance measuring).
NEVER USE EXPENSIVE TAPE MEASURES IN THE SAND.. BUY A CHEAP TAPE MEASURE FOR THAT!
Typically an employer electrician tool list says a 25-30 Foot tape measure is required.. but it’s WAY TOO HEAVY to carry all day. This FATMAX 16 Foot Tape Measure is my absolute FAVORITE.. it’s lightweight, fits easy in a coat pocket, only has imperial so you can measure inches on both sides. Plus, the FATMAX tape width allows for extended reach, especially if working on ladders!