Exterior walls, bearing walls, floors, roofs, and supports all or partially of smaller dimension all wood construction applies to which type?

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Multiple Choice

Exterior walls, bearing walls, floors, roofs, and supports all or partially of smaller dimension all wood construction applies to which type?

Explanation:
The main idea here is how construction types use wood for the structural frame. In heavy timber construction, the primary structural elements are wood members of large dimensions (for example, large timber beams and columns), while exterior walls are typically noncombustible materials like masonry. This combination—wood for the main structure in large sizes, with noncombustible exterior support—fits the description of a Type IV building. The other types rely on noncombustible framing, interior wooden framing, or fully wood-frame systems with smaller-dimension lumber, which doesn’t match the scenario as described. So this is heavy timber construction.

The main idea here is how construction types use wood for the structural frame. In heavy timber construction, the primary structural elements are wood members of large dimensions (for example, large timber beams and columns), while exterior walls are typically noncombustible materials like masonry. This combination—wood for the main structure in large sizes, with noncombustible exterior support—fits the description of a Type IV building. The other types rely on noncombustible framing, interior wooden framing, or fully wood-frame systems with smaller-dimension lumber, which doesn’t match the scenario as described. So this is heavy timber construction.

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