Log Weight Calculator

Log weight depends on the wood species, moisture content, and volume. Fresh-cut (green) logs typically weigh 25-50 lbs per cubic foot depending on species. For example, a 12-inch diameter, 8-foot oak log weighs approximately 280-320 lbs.

Green weight refers to the weight of freshly cut wood with high moisture content (typically 50-150% moisture). This is important for crane operations, transportation planning, and safety calculations in tree removal and logging operations.

Measure the diameter at both ends excluding bark irregularities and bumps. Use calipers or a diameter tape for accuracy. The calculator uses both measurements to account for the log's taper using Huber's formula.

Hickory is among the heaviest at ~51 lbs/ft³, followed by White Oak (~47 lbs/ft³) and Beech (~45 lbs/ft³). Lighter species include Cedar (~23 lbs/ft³), White Pine (~25 lbs/ft³), and Basswood (~26 lbs/ft³).

Most pickup trucks can safely carry 1,500-2,000 lbs in the bed. This equals roughly 2-3 medium oak logs (12-16 inch diameter, 8 feet long). Always check your vehicle's payload capacity and local weight regulations.

ANSI Z133-2017 requires tree crews to have access to green log weight charts for safety. Knowing weight is essential for crane capacity planning, rigging calculations, and preventing equipment overload during tree removal operations.

This calculator provides estimates based on average green densities and standard formulas. Actual weight can vary ±10-15% due to moisture content variations, wood density differences within species, and measurement accuracy.

The calculator uses Huber's formula for volume calculation: V = π × (average diameter/24)² × length. Weight is then calculated by multiplying volume by the species-specific green density.