Table of Contents
How are wooden logs measured?
When you find a scale online in chart-form, to use the scale, measure in inches the average diameter of the small end of the log. You can estimate this value by examining the log. Then measure the length of the log in feet. Locate the row and column on the appropriate scale to determine the board footage for the log.
What is measuring unit for wood?
cord
The cord is a unit of measure of dry volume used to measure firewood and pulpwood in the United States and Canada. A cord is the amount of wood that, when “racked and well stowed” (arranged so pieces are aligned, parallel, touching and compact), occupies a volume of 128 cubic feet (3.62 m3).
What is the diameter of a log?
Table 3
Diameter of log small ends, inside bark | Length of logs (feet) | |
---|---|---|
8 | 16 | |
12 inches | 45 | 95 |
13 inches | 55 | 115 |
14 inches | 65 | 135 |
How many boards are in a log?
How Much Lumber is in a Log?
The board-foot contents of logs according to the International 1/4 Rule | ||
---|---|---|
Diameter of log small end, inside bark | Length of log (feet) | |
16 inches | 85 | 110 |
17 inches | 95 | 125 |
18 inches | 110 | 140 |
How do you calculate volume of a log?
Smalian’s formula states that the volume of a log can be closely estimated by multiplying the average of the areas of the two log ends by the log’s length.
What is a log measure?
A logarithmic scale (or log scale) is a way of displaying numerical data over a very wide range of values in a compact way—typically the largest numbers in the data are hundreds or even thousands of times larger than the smallest numbers.
What units are used to measure sawed lumber?
The board foot is the most common standard used for saw logs and lumber. A board foot contains 144 cubic inches of sawed lumber or the equivalent of a board 1 inch thick, 12 inches wide and 1 foot long. A second unit of measure is the cord. Fuel wood and pulp wood (wood used to make paper) are measured and sold by the cord.
What are the methods of measuring logs?
Measurement can be direct or indirect. Directmeasurements can be made at the ends of logs with rulers and at intermediate points with calipers (two readings at right angles should be made unless a large number of logs is involved).
What is a log in lumber?
Logs are tree sections that are to be converted to products such as lumber, veneer, and plywood. Many log measurement systems have been devel- oped and can be very confusing. In this chapter, a number of important domestic and foreign log measurement systems, often called log scales or log rules, are described.
How is wood measured and measured?
Wood can be measured in a number of ways, which means that foresters, loggers, and timber owners can find themselves needing to convert some of these measurements. In order to understand those conversions, you first need to know some of the common terminology: A standard cord is a four-foot by four-foot by eight-foot stack of wood.