| 摘要 |
A frame for improved moisture, decay and insect resistance includes frame members each possessing a short treated lumber member joined to a longer untreated lumber member so that the length of the overall board achieves a desired length with an acceptable amount of distortion. The untreated member may be treated but the treatment is not so invasive as to impart a high degree of warping. The treated member may have more or less treatment depending on the amount of distortion which is acceptable. Top and bottom boards connect the frame members to form a door frame.
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