Green Log and Limb Weight

Green weight and volume of a log or limb from its butt / top diameter, length, and species green density - the static load every rigging number starts from.

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Formula and source

volume = (pi/3) x length x (r1^2 + r1 r2 + r2^2) with r = dia/24 (frustum; cylinder when butt = top); weight = volume x green density.

USDA Forest Products Laboratory Wood Handbook green density by species by name; first-principles frustum volume.

Audience

This tile is built for agriculture and the adjacent professions in the Agriculture and Forestry group. The interactive calculator runs entirely in your browser. No account, no fee, no advertising, no tracking.

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Rough Logic answers the math question the working professional asks on the job. The site is a calm, fast, ad-free, account-free, ever-free reference. It does not interpret code. It does not replace the licensed professional. It does not store your inputs. The Authority Having Jurisdiction governs all installations and inspections.