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Pitch of private stairs
3.12NI-wide·Technical Booklet H Stairs Ramps Guarding and Protection from Impact
The pitch of a private stair should not exceed 42°, therefore it is not possible to combine a maximum rise with a minimum going. The rise and the going are given in Table 3.1.
dwellingstairsprivate-stairWidth of flights in private and common stairs
3.13NI-wide·Technical Booklet H Stairs Ramps Guarding and Protection from Impact
The minimum unobstructed widths for a flight, in a private stair and a common stair in a block of dwellings, are given in Table 3.2 and should be measured in accordance with Diagram 3.4.
dwellingflatsstairsprivate-staircommon-stairTable 3.2: Widths of flights in private and common stairs
Table 3.2NI-wide·Technical Booklet H Stairs Ramps Guarding and Protection from Impact
Table 3.2 Widths of flights in a private stair and a common stair in a block of dwellings Category | Minimum unobstructed width (mm) Private stair - (a) providing access to one room only (not being a
dwellingflatsstairsprivate-staircommon-stairDiagram 3.4: Measuring stair width
Diagram 3.4NI-wide·Technical Booklet H Stairs Ramps Guarding and Protection from Impact
Diagram 3.4 Measuring the width of a private stair and a common stair in a block of dwellings W = unobstructed widths Minor intrusions such as string/skirting and newel may be ignored.
dwellingflatsstairsprivate-staircommon-stair