6.6.3Fire precautions

Where required for fire escape, staircases shall be suitably designed.

Staircases should be designed to meet relevant building regulations, taking into account the fire resistance of components and smoke ventilation. Further guidance can be found in BS 9991 and BS 9999.

Timber staircases are acceptable in a single family home where there are no more than four storeys, excluding the basement.

In houses of three or more storeys, and flats in buildings of three or more storeys, additional provisions may be required to comply with relevant building regulations.

Further information on fire precaution and staircases can be found in the Building Control Alliance Technical Guidance Note 19.