Residential Building Inspector Practice Exam

What section of the code book provides floor joist spans for common lumber species in living areas?

1. R502.3

2. R502.3.1

3. R502.3.1(2)

4. R505.3.2

The correct answer is: R502.3.1(2)

The section R502.3.1(2) refers specifically to the allowable spans for floor joists based on various lumber species used in residential construction, particularly in living areas. This section is part of the larger framework found in the building codes that focus on structural requirements, ensuring safety and stability. Within this section, tables are typically provided that detail the maximum span lengths that can be utilized depending on factors such as the type of lumber and the load it is expected to carry. Knowing the specific span limitations is crucial for builders and inspectors to ensure compliance with safety standards and structural integrity. In contrast, the other options address different aspects of framing but may not directly provide the detailed span information relevant to floor joists in living areas. Being well-versed in the content of R502.3.1(2) is essential for professionals in the field to determine appropriate materials and their suitability for specific applications in residential construction.