How is the vertical height for attic access openings measured?

The vertical height for attic access openings is measured from ceiling framing to roof framing. This measurement is important because it indicates the actual space available for movement and accessibility within the attic. Understanding this height helps ensure compliance with building codes and safe access for maintenance or inspection purposes.

Measuring from the ceiling framing allows for consideration of any obstructions or variations in the ceiling that could affect access. It focuses on the structural components that define the usable vertical space between the finished ceiling in the living area and the structural elements of the roof above.

Other measurements, such as from floor to ceiling or from the attic floor to the ceiling, do not specifically address the structural components relevant to attic access. Measuring from eave to peak is more relevant to the overall height of the building rather than to specific access points.