GB/T 4814-2013Log volume table (English PDF)

3.1 feet long 0.5m ~ 1.9m seized log volume formula

Gauging diameter of 8cm ~ 120cm, gauging length 0.5m ~ 1.9m short original timber volume is determined by the formula (1).

V = 0.8L (D 0.5L) 2 ÷ 10000 (1)

Where.

V --- logs volume, in units of cubic meters (m3);

L --- logs gauging length in meters (m);

D --- logs seized foot diameter in centimeters (cm).

3.2 Gauge length 2.0m ~ 10.0m original wood product formula

3.2.1

seized foot diameter 2.0m ~ 10.0m trail log volume (2) is determined by the formula 4cm ~ 13cm, gauging long.

V = 0.7854L (D 0.45L 0.2) 2 ÷ 10000 (2)

Where.

V --- logs volume, in units of cubic meters (m3);

L --- logs gauging length in meters (m);

D --- logs seized foot diameter in centimeters (cm).

3.2.2

seized foot diameter 14cm ~ 120cm, gauging length 2.0m ~ 10.0m original timber volume (3) is determined by a formula.

V = 0.7854L [D 0.5L 0.005L2 0.000125L (14-L) 2 (D-10)] 2 ÷ 10000 (3)

Where.

V --- logs volume, in units of cubic meters (m3);

L --- logs gauging length in meters (m);

D --- logs seized foot diameter in centimeters (cm).

Seized more than 3.3 feet long and 10.2m log volume formula

Seized foot diameter 14cm ~ 120cm, gauging long since over 10.2m long raw timber volume by the formula (4) is determined.