The Forestry Forum

General Forestry => Forestry and Logging => Topic started by: cutter88 on September 03, 2014, 04:10:06 PM

Title: Help! Quick log scale question
Post by: cutter88 on September 03, 2014, 04:10:06 PM
Hard wood vinneer logs 12" to 18" what scale is better decibel c or Doyle?
Title: Re: Help! Quick log scale question
Post by: chester_tree _farmah on September 03, 2014, 04:25:02 PM
http://pubs.ext.vt.edu/420/420-085/420-085.html

Don't think u want Doyle.

U can compare all three. There is Maine scale too but U don't have to worry about that one. :-)
Title: Re: Help! Quick log scale question
Post by: Texas Ranger on September 03, 2014, 04:27:04 PM
decibel c, doyle underscales small logs
Title: Re: Help! Quick log scale question
Post by: beenthere on September 03, 2014, 05:40:45 PM
Quote from: chester_tree _farmah on September 03, 2014, 04:25:02 PM
http://pubs.ext.vt.edu/420/420-085/420-085.html

Don't think u want Doyle.

U can compare all three. There is Maine scale too but U don't have to worry about that one. :-)

Three can be compared using the Tool Box (red in left column) here on the FF.

Buy on Doyle, but don't sell using Doyle.. ;)
Title: Re: Help! Quick log scale question
Post by: Jhenderson on September 03, 2014, 08:53:42 PM
I always thought decibel was a sound measurement.
Title: Re: Help! Quick log scale question
Post by: Southside on September 03, 2014, 09:12:20 PM
You buying or selling?  From the loggers point of view Doyle is really for logs 28" and above, International will scale more wood in a log below that diameter and Doyle will scale more wood above that diameter. 
Title: Re: Help! Quick log scale question
Post by: Brleclaire on September 03, 2014, 09:29:12 PM
If your selling that size definitely decimal c. If you want do a web search for log scale rule can find some interesting stuff. Some will give a brief history and who formulated it and the actual equation used to figure volumes and expiation on what size trees each is better for and who(buyer/seller). Just a little info if interested instead of just looking at numbers on a chart or stick.
Title: Re: Help! Quick log scale question
Post by: beenthere on September 03, 2014, 09:56:54 PM
Here is a very detailed history of log rules, with formulas, and comparisons by rule and also by log diam... if interested.

A Collection of Log Rules

http://www.fpl.fs.fed.us/documnts/fplgtr/fplgtr01.pdf
Title: Re: Help! Quick log scale question
Post by: treeslayer2003 on September 03, 2014, 10:35:13 PM
Quote from: cutter88 on September 03, 2014, 04:10:06 PM
Hard wood vinneer logs 12" to 18" what scale is better decibel c or Doyle?
a 12"  log is not veneer to me. depends on the mill, i doubt you will change their mind.
Title: Re: Help! Quick log scale question
Post by: Ron Wenrich on September 04, 2014, 05:47:48 AM
Seems that the buyer is the one who sets the scale.  In my area, Doyle is the only scale that buyers use.  As long as they get enough logs, they won't change the scale.