# Tree caliper

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{{Short description|Tool for measuring the diameter of the cross-section of trunks}}
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A '''tree caliper''' is a tool to measure the [diameter of](/source/diameter_at_breast_height) a tree. When used in forestry, the tree caliper tool measures the DBH or "diameter at breast height" of a tree that is growing in a landscape of any kind.   The measurement is generally made at 4.5' or 1.4m above the soil.

Caliper measurements on nursery stock trees describe the size of the plant material being sold. The caliper measurement for nursery stock trees measuring four inches or less is taken six inches above the soil. Once a nursery stock tree's caliper exceeds four inches, the tree is measured  twelve inches above the soil.

There are a considerable number of designs of the tool.<ref name=":0">American nursery stock standard Z-60.1</ref>

== References ==
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== External links ==
{{commonscat|Tree calipers}}

{{forestry-stub}}
{{Forestry tools}}

Category:Forestry tools
Category:Length, distance, or range measuring devices

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