ICC Commercial Building Inspector Practice Test

What is defined as each continuous, vertical section of a wall that is one masonry unit in thickness?

1. A panel

2. A wythe

3. A pier

4. A lintel

The correct answer is: A wythe

The term defined as each continuous, vertical section of a wall that is one masonry unit in thickness is known as a wythe. In masonry construction, the wythe is a fundamental unit, essentially forming the vertical portion of a wall. Wythes can be constructed from bricks, stones, or concrete blocks and can significantly impact the structural integrity, thermal performance, and durability of the wall. Understanding the concept of a wythe is crucial for recognizing how masonry walls are constructed and how they perform in terms of load-bearing and insulation. Panels, while relevant in construction, typically refer to larger sections that may not strictly adhere to the singular definition of a wythe. A pier is often used to describe a vertical support structure that helps bear loads but does not define the single thickness of a wall section. A lintel refers to a horizontal support across an opening, such as a door or window, and is unrelated to the vertical sections of a wall. These distinctions clarify why the term wythe is the appropriate choice in this context.