Structural design with wood
Wood as a building material is often misunderstood -- even by people who use it a great deal. Designers with extensive experience in wood design are rare. Many designers accept poor design practices. Water is the major source of trouble in exterior wood structures. Most of the design practices suggested in this guide deal directly or indirectly with wood moisture. Wood also is a material containing randomly placed defects (knots, etc.) as well as certain structural strength characteristics related to the orientation of the wood grain. These features should be considered in design to best use the wood and build the best structure possible.
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