Semi-mature trees are graded by the girth (circumference) of the trunk measured 1 meter above ground level. This is a better way to gauge of the maturity of the tree than simply to measure it’s height. Height will of course vary considerably depending on the species chosen.

Tree Girth (cm)CMInchesApprox. Height
6-82.20.92.4-2.75m (8-9')
10-123.51.42.75-3m (9-10')
12-144.11.63-3.5m (10-12')
14-164.81.93.5-4.25m (12-14')
16-185.42.14.25-5m (14-16')
18-206.02.45m+ (16'+)
20-257.22.84-6m (13-19')
25-308.83.55-6m (16-19')
30-3510.34.16-7m (19-23')
35-4011.94.76-8m (19-26')
40-4513.55.36-8m (19-26')
45-5015.15.96-8m (19-26')
50-6017.56.97-8m (23-26')
60-7020.78.17-9m (23-30')
70-8023.99.47-9m (23-30')
80-9027.010.68-10m (26-33')
90-10030.211.98-12m (26-40')
100-12044.617.68-12m (26-40')

GolfballGolf Ball 13cm girth

Tennis Ball
Tennis Ball 20cm girth
Football
Football 70cm girth