Landscaping License Practice Test

What is the standard width of a walkway that would affect expansion joint calculations?

1. 2 ft

2. 3 ft

3. 4 ft

4. 5 ft

The correct answer is: 4 ft

The standard width of a walkway that would influence the calculations for expansion joints is generally 4 feet. This width is significant because it is commonly used for pathways in residential and commercial landscapes, allowing for comfortable passage for pedestrians while also considering structural elements. When planning for expansion joints, width is critical because the larger the surface area of the walkway, the more the material is likely to expand and contract with temperature changes. A walkway of 4 feet wide provides ample space for this movement and helps determine the required number and placement of expansion joints. Properly accounting for this width ensures that the materials used do not crack under stress from thermal expansion. Choosing a walkway width different from 4 feet could potentially lead to miscalculating the necessary expansion joints, which could compromise the walkway's longevity and performance.