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Gene Wengert

Gene Wengert, “The Wood Doctor” has been training people in efficient use of wood for 45 years. He is extension specialist emeritus at the University of Wisconsin-Madison.

Wood Dr

Narrow lumber from supplier and lower yield

Q. I was shown two pieces of lumber, one 6-1/2 inches wide and 12 feet long and another almost an inch wider (not quite 7-1/2 inches wide) and 12 feet long and the grader said both were counted as 6 BF. The grader commented to me that some mills produced a lot of this narrow lumber. If our grader is correct, 6-1/2 inches x 12 feet is 936 square inches, while 7-1/2 inches x 12 feet is 1080 inches which is 15 percent more wood. Or I figure that 6-1/2-inch pieces are 15 percent less. I also know that our percentage yield with 6-1/2 inches is a bit lower than from 7-1/2-inch pieces, but this a bit scary. Is this right? What is going on?

Wood Explorer

Oregon Myrtle (a.k.a. California Laurel)

Oregon myrtle, often just called myrtle wood, also known as California laurel (Umbellularia californica), is the most expensive wood in North America. The wood, especially the burls, has exquisite grain and color, especially if the logs were submerged for a while before processing.

Wood Dr

Epoxy glue joint problems

Q. I have some epoxy glue joints that are not very strong. I know the surfaces are not too smooth, and that is why I am using epoxy. I have increased the pressure but with no luck. What next?