Are stairway lights required by NB building code?

Yes, stairway lighting is required by the New Brunswick Building Code. Interior stairs with three or more risers must have artificial lighting that provides adequate illumination for safe navigation.

The New Brunswick Building Code requires artificial lighting for all interior stairways, and this lighting must be controlled by switches at both the top and bottom of the stairway when the stair has six or more risers. For stairs with fewer than six risers, a single switch control is acceptable, but the light must still adequately illuminate the entire stair run.

Specific requirements include:

• Minimum illumination levels to ensure each step is clearly visible


• Light switches must be easily accessible at stair entrances


• Emergency lighting may be required in certain multi-unit buildings


• The lighting must be on a dedicated circuit in some cases, particularly in new construction

For exterior stairs and steps, the code also requires adequate lighting, especially for stairs with more than two risers. This is particularly important in New Brunswick's climate where ice, snow, and early darkness create additional safety hazards during winter months.

TSANB permit requirements apply when installing new lighting circuits for stairways. If you're adding new stairway lighting that requires running new circuits, your electrician will need to pull an electrical permit. However, simply replacing existing light fixtures on the same circuit typically doesn't require a permit.

Safety considerations are critical - poorly lit stairs are a leading cause of home injuries. Many New Brunswick homes, especially older properties, may have inadequate stairway lighting that doesn't meet current code standards. During renovations or electrical upgrades, bringing stairway lighting up to current code is often required.

If you're planning stairway lighting improvements or aren't sure if your current setup meets code requirements, a licensed electrician can assess your situation and ensure compliance with both the New Brunswick Building Code and Canadian Electrical Code requirements. Need help finding an electrician? New Brunswick Electrical can match you with local professionals for a free consultation.