Glossary Term Defined

The area of load bearing surfaces located above or below occupied building floors that is not available for general occupancy often due to inadequate clear headroom or lack of provisions for egress, and containing building structure or services predominantly serving adjacent floors or to provide access to such systems.

Load-bearing platforms between floors suitable for equipment and mechanical use but not for occupancy by personnel except for maintenance purposes. found most frequently in laboratory and medical building types. This is not the same as mezzanine space.