loggvolymen

Loggvolymen is a term used in Swedish forestry and timber trade to denote the amount of timber that has been felled and is available for processing or sale. It expresses the volume of harvested wood and is commonly reported as cubic meters of solid wood. In practice, different conventions may be used in different contexts, such as including or excluding bark, and distinguishing gross or net volume.

In standard practice the loggvolymen is given in cubic meters, often referred to as solid volume. Depending on contractual or regulatory settings, the figure may be reported as gross volume (before defects, waste, or bark are accounted for) or net volume (after deductions). Foreign-language equivalents and historical conventions may differ, but the core idea is to quantify the amount of wood that can be utilized.

Measurement and calculation are performed in several ways. At harvest, foresters measure trunk diameters and log lengths, and then apply a log rule to estimate volume per log. Common log rules include Smalian’s rule and, historically in some regions, Hoppus’ rule. The volumes of all logs from a stand or harvest block are summed to obtain the loggvolym. Alternatively, volume estimates can be derived from stand inventory data using species, age, site index, diameter distribution, and height models. The resulting figure is used in commercial bidding, harvest planning, taxation, forest management decisions, and national statistics.

Limitations and uncertainties arise from defects, crookedness, bark thickness, and variation in log lengths. Consequently, loggvolymen is an estimate and may be subject to adjustments during processing or formal verification.

See also: timber volume measurement, m3 f, Smalian rule, Hoppus rule, forest inventory.