What are bulkhead doors primarily used for?

Bulkhead doors are primarily used to provide access to under-home areas such as cellars or basements. These doors typically lead to a vertical drop that allows for easier entry into spaces that may be below ground level or somewhat hidden from standard access points. They are particularly useful in homes where basement access is necessary but traditional doorways may not be feasible due to space or design constraints.

This functionality is important for maintenance purposes, such as accessing piping, HVAC systems, or storing items in a cellar that can benefit from being out of sight yet easily accessible. The design of bulkhead doors often includes a set of stairs or a ramp to facilitate safe entry and exit, making them a practical choice for these specific under-home areas.