National Home Inspector Practice Exam

What is the primary purpose of anchor bolts in a sill plate?

1. Prevent movement

2. Prevent wall racking

3. Prevent wall collapse

4. Prevent wall misalignment

The correct answer is: Prevent movement

The primary purpose of anchor bolts in a sill plate is to prevent movement. Anchor bolts secure the sill plate, which is the bottom horizontal member of a wall, to the foundation or floor system of the structure. By anchoring the sill plate, the bolts help stabilize the entire frame of the building, ensuring that it remains in place during various stresses such as wind loads, seismic activity, and other forces that might cause the structure to shift or move. This stabilization is essential for maintaining the integrity and durability of the building over time. While preventing wall racking, wall collapse, and wall misalignment are important considerations in overall building safety and performance, these factors are more directly influenced by the design and bracing of the wall framing, rather than solely by the anchor bolts themselves.