# Log Volume Measurement in Ireland

Measurement of round timber for sale purposes in Ireland.

The volume of Irish logs is calculated using Huber's formula.

Diameters are measured mid-length of the log over bark in centimetres (cm)

Lengths are measured in metres (m) to the nearest centimetre.

A log whose length is greater than 20 metres has to be divided into two lengths for the purpose of calculating the log volume.

##### Huber's Formula:

V = (π * Dm²) ÷ 40000 * LV = volume in cubic metres (m³)

π = 3.1416

Dm = mid-diameter (diameter of a log at exactly half its length) in centimetres

L = length in metres

##### Or in a simpler form:

V = Dm² * L * 0.00007854V = volume in cubic metres (m³)

Dm = mid-diameter (diameter of a log at exactly half its length) in centimetres

L = length in metres

0.00007854 = π ÷ 40000

### Ireland-Diameter Overbark

#### Calculation

- length of log in metres (m) to the nearest centimetre
- the diameter measured mid-length "outside bark" in centimetres

#### Result

- log volume in cubic metres

##### Logging Calculators

#### Cubic Volume Log Rule Calculators

- Nova Scotia Cubic Metre Log Scale
- Pressler's Cubic Foot Formula
- Smalian's Formula - Metric
- Smalian's Formula - Imperial
- Spike's Rule
- Swedish Log Volume Calculation
- Swedish Log Volume Calculation Method One
- Swedish Log Volume Calculation Method Two
- Swedish Log Volume Calculation Method Three
- William Klemme