How many cu mtrs in a trunk formula?

[cessna]

How do I work out how many cu mtrs there are roughly , in a wind blown beech tree trunk 12mtr long and rough average diameter 75cm ,for once it is a nice straight trunk. but on a bank:thumbdown: Thank you for any suggestions.

[Woodworks]

I am sure this is not how a forester would do it but this should work. Just put in you radius at the base and radius at top and hight. Calculate volume of a truncated cone and its surface area

 

Looks like you 5.3m3 of beech there.

Edited October 20, 2014 by Woodworks

[Lucan]

Were you not paying attention in maths class? :thumbup:

 

Volume = length x (pi x r squared)

 

Just remember to keep your units constant

[JLA Arborists]

πr²h = pi (3.142) x radius squared x height.

 

3.142 x .38 x .38 x 12= 5.44m3

[cessna]

πr²h = pi (3.142) x radius squared x height.

 

3.142 x .38 x .38 x 12= 5.44m3

 

 

 

 

Thank you, the wonders of this forum:thumbup:

[mendiplogs]

How do I work out how many cu mtrs there are roughly , in a wind blown beech tree trunk 12mtr long and rough average diameter 75cm ,for once it is a nice straight trunk. but on a bank:thumbdown: Thank you for any suggestions.

 

HI CESSNA buy a field guide it called round wood and sawlog volume tables off the forestry commission thanks good book thanks jon

[Spruce Pirate]

From the blue book: Volume from Length and Mid-diameter :

 

 

V = ( π dm² / 40000) * L

 

V is volume in cubic meters

π is pi (3.1415927)

dm is mid diameter in centimeters

L is length in meters

 

So:

 

V = ((3.1415927 * (75 * 75)) / 40000) * 12

= ((3.1415927 * 5625) / 40000) * 12

= (17671.458 / 40000) * 12

= 0.4417864 * 12

= 5.3m3

[Spruce Pirate]

HI CESSNA buy a field guide it called round wood and sawlog volume tables off the forestry commission thanks good book thanks jon

 

Good advice.

[cessna]

Thank you all . Jon I will contact the Forestry Commision for tables booklet tomorrow.

[mendiplogs]

Thank you all . Jon I will contact the Forestry Commision for tables booklet tomorrow.

 

Hi mate go to Sring fields I think there called his name is Paul nice I talking to him at the APF SHOW thanks Jon