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Die Formelsammlung der Experten
| Unit or Measure | Formula or Conversian Factor/s | Usual use | Countries using |
| Foot Board Measure (BF, MBF, FBM) |
= 12 in. * 12 in. * 1 in. = 1/12th cubic foot 1,980 FBM = 1 standard (of 165 cubic foot). 1,000 FBM = 83.3 cubic feet = 2.36 cubic metres = 0.505 standards |
Log and Lumber (sawn timber) measure |
North America |
| Doyle Measure (DM, DF, MDF) |
Method: A deduction of 4 inches from diameter is made for slabs. Volume: Length(ft) * (diameter(ins) - 4 ins.)î / 16 = board feet |
Board feet measure that can be produced from good log | North America |
| Cubic metre (cbm, m³) |
= 35.315 cubic feet = 423.728 board feet (12 ins.*12 ins.*1 in.) of sawn wood = 0.214 standards (of 165 cubic feet) of sawn wood = 35.315 cubic feet of roundwood (Hoppus 113 measure) = 27.72 Hoppus cubic feet of roundwood (Hoppus 144 measure) |
Continental log and timber measure and timber statistics issued by european countries | Europe and other countrie |
| Circumference (girth) Measuremen (cbm, m³) |
Method: "True content of cylinder". The length and mid-circumference of the log are measured Formular: Radiusî * Pi (3.1416) * length Volume: Circumference / 3.1416 / 2 = (Radius)î * 3.14 * length = m3 (cbm) Example: 1st. step: 203cm(circumf.) / 3.1416(Pi) =64.6cm(diameter) 2nd.step: 0.647 m / 2 = 0.324 m (radius) 3rd. step: 0.324 m (Radius) * 0.324 m (Radius) * 3.1416 (PI) * 3.30 m (length) = 1.088 m3 (cubic metre) volume |
Continental log measure | Europe and other countries |
| Diameter measurement (cbm, m³) |
Method: "True content of cylinder". The length and mid-diameter of the log are measured Formular: Radiusî * Pi (3.1416) * length Volume: diameter / 2 = (Radius)î * 3.1416 * length = m3 (cbm) Example: 1st. step: 0.647 m (diameter) / 2 = 0.324 m (radius) 2nd. step: 0.324 m (Radius) * 0.324 m (Radius) * 3.1416 (PI) * 3.30 m (length) = 1.088 m3 (cubic metre) volume |
Continental log measure | Europe and other countries |
| Festmeter (fm) |
similar to" true content of cylinder" method of circumference measurement and/or diameter measurement = 1 cubic metre of roundwood felled, or 1 cubic metre of standing timber. |
Continental log measure | Europe |
| cubic metre (cbm, m³) |
Method: The thickness, length and mid-width of the board are mesasured, mid-width includes half of the edges of unedged boards. Volume: thickness * length * width = m3 (cbm) Example: 0.052 m (thick) * 3.10 m (length) * 0.26 m (width) = 0.042 m3 (cbm) |
Unedged lumber measure | |
| cubic metre (cbm, m³) |
Method: The thickness, length and width of the paralleledged board are mesasured. Volume: thickness * length * width = m3 (cbm) Example: 0.052 cm (thick) * 3.10 m (length) * 0.26 m (width) = 0.042 m3 (cbm) |
Edged lumber measure | |
| inch (english) | = 25.4 mm = 2.54 cm = 0.0254 meter | ||
| foot (english) | = 304.8 mm = 30.48 cm = 0.3048 meter | ||
| metre / meter (m) | = 1000 mm = 100 cm = 1 meter | ||
| Board Feet | 1,000 Board Feet ( 1 MBF) = 2.36 m3 (cbm) |