Massachusetts Unrestricted Construction Supervisor License Practice Test

Can native lumber be used as columns in a two-story dwelling?

1. No

2. Only if treated

3. Yes

4. Only for load-bearing walls

The correct answer is: Yes

Native lumber can be utilized as columns in a two-story dwelling, provided it meets specific criteria outlined in building codes and standards. Using native lumber is a common practice in construction, as many types of wood, such as pine, fir, and cedar, provide adequate strength and durability for structural applications. When using native lumber, it is important to ensure that the lumber is properly graded and that it complies with local building codes regarding size, load-bearing capacity, and moisture content. In construction practices, the use of native lumber as structural elements can be advantageous because it is often more readily available and can offer aesthetic benefits as well. However, it is essential for builders to conduct proper calculations and inspections to guarantee that the chosen lumber can support the expected loads over time, especially in multi-story structures. The other choices present limitations that are not universally applicable. For instance, treating lumber may not be necessary unless the wood is exposed to conditions that could promote decay or insect damage. Using lumber solely for load-bearing walls excludes its use in other critical structural applications like columns, which doesn't reflect its adaptability and versatility in construction.