Stairs, Lifts, Lobbies & Corridor requirement – General guideline

The width of lobbies or corridors in building shall be as under.

In case of residential and non-residential building except individual detached building minimum clear width of corridor shall be as under :

Notes:

• For every additional 3.00 mts. length or part there of the width of corridor shall be increased by 0.15 mts. up to a maximum of 3.00 mts.
• In case of starred hotels. the width of the corridor shall be as per the authorized standards of the starred hotels.
• whereas in case of residential dwelling unit occupied by single family and constructed up to three floors width of the stairs shall not be less than 1.0 mtr.
• In case of all non-residential and high rise residential buildings. the clear width of stair and lending exclusive of parapet shall not be less than 1.5 Mts.
• Minimum stair width for more than 6 tenements on each floor shall be 1.5 Mts.
• The stair-case & lifts (elevators) shall be so located that it shall be within accessible distance of not more than 25 Mts. from any entrance of tenement or an office provided on each floor.
• The design of the lift & stair along with the tread and riser shall comply with the provisions of the National Building Code for that class of building.
• No winders shall be allowed except in case of individual dwelling unit.