What is the typical spacing for hangers?

Hangers are typically spaced at 1200 mm along the main runners, but this must be confirmed based on the total load of the ceiling system (Clause 6.3).

How should penetrations for lights and sprinklers be handled?

All penetrations must be independently supported and framed with additional support members to carry the load and maintain the fire and acoustic integrity of the ceiling (Clause 6.5).

What is the maximum deflection allowed for the ceiling grid?

The maximum allowable deflection for the grid system under its own weight and any superimposed loads should not exceed 1/360 of the span (Clause 5.2).

IS 14500

: 1997

Code of practice for design and installation of suspended ceilings for acoustic and thermal insulation

CurrentSpecializedCode of PracticeBIMArchitectural · Insulation Materials

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This code of practice outlines the requirements for the design and installation of suspended ceiling systems intended for acoustic and thermal insulation. It covers material specifications, design of the support grid, installation procedures, and considerations for fire safety to ensure performance and durability.

Provides guidance for designing and installing suspended ceilings for acoustic and thermal insulation.

Quick Reference Values

Maximum allowable deflectionL/360 of the span

Minimum hanger wire diameter for normal duty2.5 mm

Typical main runner spacing1200 mm

Typical cross runner spacing600 mm

Minimum clearance above ceiling for access300 mm

Practical Notes

Ensure proper coordination with MEP services (ducts, pipes, lights) before installing the ceiling grid to avoid clashes.

Pay close attention to the fixing of hangers to the overhead slab/structure, as this is critical for safety and load-bearing capacity.

Careful leveling of the grid system is essential for a visually acceptable finish, especially with lay-in tiles and concealed grid systems.