Floor space clearances

305.1-7 – Clearances

305.2 Floor or Ground Surfaces.
Floor or ground surfaces of a clear floor or ground space shall comply with 302. Changes in level are not permitted.

305.3 Size.
The clear floor or ground space shall be 760 mm (30″) minimum by 1220 mm (48″) minimum.

305.4 Knee and Toe Clearance.
Unless otherwise specified, clear floor or ground space shall be permitted to include knee and toe clearance complying with 306.

305.5 Position.
Unless otherwise specified, clear floor or ground space shall be positioned for either forward or parallel approach to an element.

305.6 Approach.
One full unobstructed side of the clear floor or ground space shall adjoin an accessible route or adjoin another clear floor or ground space.

305.7 Maneuvering Clearance.
Where a clear floor or ground space is located in an alcove or otherwise confined on all or part of three sides, additional maneuvering clearance shall be provided in accordance with 305.7.1 and 305.7.2.

305.7.1 Forward Approach.
Alcoves shall be 915 mm (36″) wide minimum where the depth exceeds 610 mm (24″).

305.7.2 Parallel Approach.
Alcoves shall be 1525 mm (60″) wide minimum where the depth exceeds 380 mm (15″).