How many sheets of paper can one tree make ?
First, unit measurements of pulpwood (for paper and packaging) and sawlogs (for lumber and wood products) are in “cords” and “board feet” respectfully. A pulpwood cord is a stack of logs four feet tall, four feet deep and eight feet long (4 x 4 x 8). All measurements of how much wood fiber is used to produce paper products are in cords or tons. Second, the initial step in preparing logs for pulpmaking is to remove the bark. It is unsuitable for paper production, but is burned by paper firms to produce energy. However, depending on the type of tree, bark can account for 10 to 20 percent of a tree’s volume. Third, different trees yield varying quantities of pulp. It varies, for example, by species (hardwood, softwood and aspen) and subspecies (red pine, jack pine, white pine). Fourth, different paper grades — tissue, computer, magazine, book — require different volumes or densities of pulp. Even within the book grades, there are different weights of paper which require more or less volum
