Landscaping License Practice Test

What is the maximum spacing for expansion joints in a concrete patio?

1. 15 ft

2. 10 ft

3. 12 ft

4. 8 ft

The correct answer is: 10 ft

In the context of constructing concrete patios, the maximum spacing for expansion joints is typically set to manage temperature fluctuations and prevent cracking due to expansion and contraction of the material. Given this principle, a maximum spacing of 10 feet is generally recommended. This allows for adequate accommodation of movement without risking excessive stress on the concrete. Utilizing expansion joints correctly ensures that any potential cracking is minimized, helping to maintain both the integrity and aesthetic of the patio over time. Joints placed at intervals greater than 10 feet may not effectively absorb the movement caused by temperature changes, leading to potential issues with the surface of the concrete.