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E-book Residental Structural Design Guide
In post-and-beam framing, structural columns support horizontal members. Post-and-beam framing is typified by the use of large timber members. Traditional balloon framing consists of closely spaced light vertical structural
members that extend from the foundation sill to the roof plates. Platform framing is the modern adaptation of balloon framing, whereby vertical members extend from the floor to the ceiling of each story. Balloon and platform framings are not simple adaptations of post-and-beam framing but are actually unique forms of wood construction. Platform framing is used today in most wood-framed buildings; however, variations of balloon framing may be used in certain parts of otherwise platform-framed buildings, such as great rooms, stairwells, and gableend walls, where continuous wall framing provides greater structural integrity. Figure 1.2 depicts a modern home under construction.
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