| Primary value | 2.0–2.5 m ((above floor level)) |
| Applies to | All exit doors, corridor turns, and stair entries |
| Exceptions | Letter height → Min 150 mm — visible from 30 m |
| Backup duration → ≥ 90 minutes | |
| Pictogram → Internationally standardised running-man symbol | |
| Low-level signage (High-Rise) → In high-rise buildings, supplementary signs must be installed at a low level (0.3 m from the floor) to be visible below smoke. [Ref: NBC Part 4, C-1.14.1] | |
| Sign Colour → The colour of the exit signs shall be green. [Ref: NBC Part 4, C-1.14.2] | |
| Language → Signs must be in English and the primary language of the locality. [Ref: NBC Part 4, C-1.14.3] | |
| Measured as | Vertical distance from finished floor to bottom edge of the exit-sign assembly. |
| Source | NBC 2016 — Part 4, Annex C, Clause C-1.14 📚 Cross-referenced |
Signs mounted too low can be obscured by people in crowded conditions, while signs mounted too high may be missed or hidden by smoke. This height range ensures visibility above typical head-level and door frames, guiding occupants effectively during an emergency evacuation.
Signs are typically wall-mounted directly above the door lintel. In long corridors or open areas, double-sided ceiling-suspended signs are used to ensure visibility from multiple directions.