DDM
Addicted to ArboristSite
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ddhlakebound said:Interesting and handy.....gonna print out a copy to keep in the truck.
On the Dept. of the Interior "Weight of Green Logs" chart, at the top, it says weight per linear foot, I believe that should be weight per cubic foot.
John Paul Sanborn said:No it's the weight of a cylindar which uses the cuft weight (w) in the formula
(Pi r squared) * h)* w
So the column under that heading is the value for (w), where the row on the top is the value for (d) which you divide by 2 to get (r)
On small logs you can use 3 for Pi, but 3.141 is better in bigger ones, or you can be off hundreds of pounds.
3.141592653589793238462643383279502884197169399375 would be overkill
I've memorized 3.141592 just to one up my Dad.
John Paul Sanborn said:No it's the weight of a cylindar which uses the cuft weight (w) in the formula
(Pi r squared) * h)* w
So the column under that heading is the value for (w), where the row on the top is the value for (d) which you divide by 2 to get (r)
On small logs you can use 3 for Pi, but 3.141 is better in bigger ones, or you can be off hundreds of pounds.
3.141592653589793238462643383279502884197169399375 would be overkill
I've memorized 3.141592 just to one up my Dad.
ddhlakebound said:Interesting and handy.....gonna print out a copy to keep in the truck.
On the Dept. of the Interior "Weight of Green Logs" chart, at the top, it says weight per linear foot, I believe that should be weight per cubic foot.
Ekka said:I think the woodweb link is for dried log ...
,,,, the Sherril one wont open for me, some sort of error??!!
Good one DDM, got any others, or can some-one maybe save the Sherril one then post it here that way I'm not trying to download from their server.
ddhlakebound said:Still think the "linear weight" column header is right?
and diameter per 16" firewood-length as one of the columns.John Paul Sanborn said:I allways tought it would be nice to have a slip card weight per dia/ft (or woould dia:ft be more acurate?)
How bout a digital tape measure? They make em for carpentry and construction. Ours would need to calculate weights based on LxD x specie factor, calculate distances, act as a protractor to give us angles and have a green laser built into it. Modern day's answer to a cruising stick.JP S said:Have it on a lanyard gromit and you can get an accurate estimate by d=taping the log.
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