Wood Weight Volume
Calculator

Weight equals volume multiplied by the wood's density, and density itself depends heavily on species and moisture content. This calculator needs an accurate volume (length x width x thickness) and the right density figure for your specific wood to give a useful estimate.

Green (freshly cut, undried) wood can be 30-100% heavier than the same wood kiln-dried, because it's still holding a large amount of water in its cells. A weight estimate needs to specify whether it's using green, air-dried, or kiln-dried density figures.

Density reflects the wood's cellular structure: how much solid cell wall material exists per unit volume versus empty cell cavity space. Balsa is famously light because its cells are large and thin-walled, while species like lignum vitae are dense because their cell walls are thick and tightly packed.

No, published densities are averages, and real wood varies meaningfully even within the same species depending on growing conditions, the tree's age, and which part of the log the board came from (heartwood tends to be denser than sapwood in many species).

Weight estimates matter for shipping cost calculations, for structural designs where dead load matters (like a heavy tabletop on thin legs), and for practical handling and lifting planning on large panels or timbers before they're even cut.