DeedMapper site has a section on various terms and such, and both are listed there. An "out" was ten (10) chains. A chain was the same as two (2) poles. A rod and a pole are the same thing, namely 16.5 feet. The "out" into use as surveyors carried 10 stakes, and when they used a stake at the end of each chain, they would have run "out" of stakes at the end of ten chains of measuring. Ken in VA