A 40-foot extension ladder is required to have an overlap between sections of what length?

For a 40-foot extension ladder, the required overlap between sections is 48 inches. This overlap is crucial for ensuring the ladder's stability and safety during use. An adequate overlap provides the necessary structural integrity, preventing the sections from being able to slide apart when weight is applied. The 48-inch overlap is a standard guideline that helps ensure that the ladder can support the intended loads safely while minimizing the risk of accidents.

Maintaining this overlap is particularly important in fire service applications, where conditions may be unpredictable and quick access is essential. By adhering to this standard, fire professionals can ensure that the ladder will function effectively under various emergency conditions.