Tree Calipers for Forest Inventory and Timber Cruising
Accurate diameter measurement is fundamental to forest inventory and timber valuation. CSP Forestry carries professional tree calipers — the traditional double-armed measuring instrument used to record stem diameter at breast height (DBH) during timber cruises and stand exams. Available in aluminum and fiberglass in a range of jaw lengths, our calipers are built to withstand repeated field use while delivering consistent, accurate readings. They're a reliable alternative to diameter tapes when speed and ease of use are priorities.
Complete your forest measurement toolkit with clinometers for height measurement, increment borers for age and growth analysis, and angle gauges for basal area sampling. CSP Forestry also carries cruiser vests and tallying supplies for a complete timber cruise setup. Browse our full surveying supplies catalog for all your forest measurement needs.
Frequently Asked Questions
What are tree calipers used for?
Tree calipers measure the diameter of tree stems at breast height (4.5 feet / 1.37m) during forest inventory and timber cruising. They provide fast, repeatable diameter readings without wrapping a tape around the tree.
What is the difference between tree calipers and a diameter tape?
Tree calipers measure diameter directly using two arms across the stem — faster for high-volume cruising. Diameter tapes measure circumference and calculate diameter — more accurate for irregular stems. Many foresters carry both.
What jaw length should I choose?
Jaw length should exceed the largest stem diameter you expect to measure. Standard 24-inch calipers suit most forest types. Larger plantation trees or hardwoods may require longer jaws. Browse our calipers for available sizes.
What other forest measurement tools do you carry?
We carry a full suite of forest measurement tools including clinometers, angle gauges, densiometers, increment borers, hypsometers, and diameter tapes.
