What is the measurement of a gaff when it is time to replace it?

The correct measurement for gaff replacement aligns with established safety and operational guidelines in the industry. Typically, gaffs are designed to provide support and enable safe climbing, and the key measurement range for replacement ensures that they remain effective and safe for use on utility poles. In this case, a measurement of 31 to 32 inches is within the industry standards for appropriate gaff length, making it the right choice for ensuring safety while climbing. Regular inspections and replacements based on this guideline help maintain performance and reduce the risk of accidents.

The other options do not reflect the commonly accepted range for gaff measurements in the context of safety regulations and operational standards in climbing equipment.