Explaining the log quarter scale

This video explains the use of a quarter scale when milling logs into lumber.

[@ondahillfishing]

I’ve been all over YT looking for this info and you did the best job of explaining it in its simplest form. Thank you!

[@tommikel7200]

Glad it was of help!

[@dongilley3273]

Thank you for the info . Easley understood . 👍🇺🇸

[@smigletat9634]

Very well out & hence forth.. Easy to understand! Thank you for this..

[@kevingreene5242]

Very clear, simple.

[@mikeforcerer8537]

great video! ty

[@bendugas8632]

I have a question, what if you have a rotary mill and you use either 1/4 or 5/16 tooth, your band scale will not apply, is there a scale for rotary mills.

[@tommikel7200]

Good question, log scales, or log rules were developed 100 or more years ago, depending on the rule you are using, when circular mills with 1/4" or 5/16" kerf was the norm. So the scales were developed with the expectation that the kerf is that thick anyway. So when working with a 1/8" bandsaw mill it is expected that you would produce more lumber than what the scale says you will. The log scale in this video is the Ontario Log Rule, but depending on where you are you may be using another rule, such as Doyle, Scribner, etc. They were all developed by different means, influenced by log diameter, formula used to calculate, etc. and they all build into the equation that there will be loss for slabs and sawdust. Because of this there is always room for a little variability when scaling compared to the finished lumber yielded. I hope this helps!