• Wooden scale
• Callipers
• Tape
• Biltmore stick
• Sector Fork
• Penta prism
• Barr and Stroud dendrometer

Mostly used to measure dbh/girth in developing countries are wooden scale, callipers and tape. Biltmore stick, sector fork, penta-prism, Barr and Stroud dendrometer are used to measure the diameter and girth of trees in developed countries. Their use depends upon the condition of trees (felled or standing) and the degree of accuracy required (research, business, etc.).