Michigan Residential Builders License Practice Test

Under the Carpentry section of the test, what does a "span table" indicate?

1. The weight capacity of a floor joist

2. The species and grade of lumber for spanning a distance

3. The typical dimensions of floor joists used

4. The maximum height for framing

The correct answer is: The species and grade of lumber for spanning a distance

A span table is a critical resource in carpentry that provides information about the appropriate species and grade of lumber suitable for spanning a specific distance. The table outlines how different types of lumber can support various loads over certain spans, allowing builders to select the correct materials to ensure structural integrity. When constructing or framing, it is crucial to choose the right lumber that meets both the load requirements and the span length. The classification of lumber species and grades affects its strength, stiffness, and overall performance under load. Thus, using a span table helps ensure compliance with building codes and safety standards, making it an essential part of planning in carpentry projects. The other choices, while related to construction, do not accurately capture the primary function of a span table in helping builders understand what types of lumber are appropriate for certain distances.