Sweep Percentage Deduction Calculator
Calculate the amount to deduct for a sweep defect based on the maximum deflection and the top end (small) diameter of the log.
A one-inch deflection is allowed for logs under 12 feet and a two-inch deflection for logs 12 feet and over.
Example calculation:log length of 16 feet
top end diameter of 24 inches
the maximum deflection in the log is 9 inches
(9 - 2) ÷ 24 * 100 =
7 ÷ 24 * 100 =
0.29 * 100 = 29
For this log the volume is deducted by 19 %
Percentage Loss from Log Sweep
- enter the length of the log in feet
- small end diameter in inches
- max deflection of the sweep
- the defect amount in a percentage