Nominal and Actual Cubic Meters for Timber
In the timber industry, it is common to specify volume as both nominal and actual cubic meters.
Actual Cubic Meter:
The volume of the finished, planed product as it is delivered.
Expressed as a conversion factor showing the number of cubic meters per price unit.
Nominal Cubic Meter:
The volume after cutting, before planing (dimensions of the raw material).
Also expressed as a conversion factor showing the number of cubic meters per price unit.
The data fields for actual and nominal cubic meters are found under the product in Packages → Conversion Factors, and are only available for products related to timber.
These data fields are accessible to NOBB users through the NOBB Export API, but are not visible on http://NOBB.no .
Example: Calculating Nominal and Actual Cubic Meters for a Product (with price unit: meter)
Nominal volume calculation (height × width × length):
0.05 × 0.1 × 1.0 metersActual volume calculation (height × width × length):
0.048 × 0.098 × 1.0 meters
If the product has a fixed length and the price unit is PCS, the product's actual length must be included in the calculation.
Profiled Timber, e.g., cladding, paneling, mouldings, etc.
Calculations are based on a rectangular cross-section:
Nominal cubic meter is calculated from the dimensions of the raw material before planing
Actual cubic meter is calculated from the dimensions after planing (finished product)
How to add Actual and Nominal Cubic Meters via Excel: How to add actual and nominal cubic meters via Excel
NOBB regulations:2.6.2 Nominal and Actual cubic meters for timber