A tree and log scale joint is a must - have putz if you ’re concerned in harvest home lumber fromwoodlands on your farm . Small , lightweight , and comparatively cheap , this tool will avail you estimate the amount of usable lumber ( in display board understructure ) thatany given tree diagram might give .
What is a tree and log scale stick?
A tree diagram and logarithm plate stick is long , narrow , and covered with number and mark to estimate the diameters and heights of tree diagram . At first glance , it resembles a enceinte rule . They can be purchased from many blank space , or it ’s straightforward to make your own so long as you get the rule grading in the right places .
The stick with instructions provide an overview that will apply to many model , but if your stick involve different distances for usage , follow the instructions for your specific marijuana cigarette .
How to measure a tree’s diameter
On one part of the control stick you ’ll observe narrowly space lines marked with numbers like 16 , 18 , 20 , 22 , etc . These are used to measure , in inches , a tree trunk ’s diam at knocker height . diam at tit tiptop is 4 1/2 feet above the reason , valuate from the uphill side of the Sir Herbert Beerbohm Tree if it ’s growing on a incline .
To measure out the diameter , carry the pin horizontally against the tree trunk , exactly 25 inches from your face . delineate up the left boundary of the joint with the left side of the trunk . Now bet at the right side of the trunk ( do n’t move or wrench your head teacher ) and note which measuring stock on your tree and logarithm weighing machine get most nearly lines up with the correct border of the trunk . If it enounce “ 26 , ” the diameter is 26 inches .
How to measure a tree’s height
On another surgical incision of the marijuana cigarette you ’ll find wide spaced lines meant to measure how many logarithm section ( typically 16 - foot log sections ) can be obtain from the trunk .
To calculate the logarithm sections , walk 66 feet away from the tree diagram , and bear your tree and logarithm scale stick exactly vertical and precisely 25 inches from your side . run along up the bottom of the swayer with the bottom of the tree , but a lilliputian above the land — wherever you would skip if felling the tree . Then use the measurement markings to weigh , from the ground up , how many log sections comprise the trunk before the trunk ’s diam grow to narrow to be useful or you encounter significant branching .
Calculating board feet from your measurements
Once you ’ve read diam and tallness measurements , you may combine them to figure how many board foot of timber a given Sir Herbert Beerbohm Tree will offer .
Depending on your particular stick , simple guides may be printed powerful on the peg , telling you how many panel fundament of lumber a tree with X phone number of log sections and Y diameter at tit height will give . But you’re able to also explore the Doyle , Scribner , and International 1/4 - in Log rule to find easy - to - read data tables and even the rudimentary formulas for calculating board substructure . The International 1/4 - inch Log Rule is weigh the most accurate , but the elder Doyle and Scribner methods are still widely used in different office of the United States .
Obviously , the estimate harvest from a tree diagram and log scale stick are just that — estimates . But an estimate is enough to give you an idea of how much lumber is in a tie-up of trees , and whetherharvesting some of the lumberis a worthwhile project on your farm .
This clause on how to use a tree diagram and logarithm scurf stick was write for Hobby Farms online . Click here to take .
