Section D Access and egress
SA D1.2 Number of exits required
Class 2 to 8 buildings—In addition to any horizontal exit, not less than 2 exits must be provided from the following:
a storage shed in a bulk grain storage facility if the distance of travel to an exit is more than 150 m; and
the gallery level of a in a cell type silo in a bulk grain storage facility.
SA D1.3 When fire-isolated stairways and ramps are required
Class 5, 6, 7 or 9 buildings — Every stairway or ramp serving as a required exit must be fire-isolated unless—
it is a required exit from a bulk grain storage facility and there are no window or door openings within 3 m of the stairway, ramp or ladder
SA D1.4 Exit travel distances
Farm buildings — Notwithstanding (c), in a farm building—
no point on the floor must be more than 20 m from an exit , or a point from which travel in different directions to 2 exits is available, in which case the maximum distance to one of those exits must not exceed 60 m; and
in a machinery room,plant-room or the like, the distance to a single exit serving a storey at the level of access to a road or open space may be increased to 30 m.
Bulk grain storage facilities — Notwithstanding (c), in a bulk grain storage facility—
where required exits are spaced not more than 100 m apart, the travel distance to an exit in a cell type silo or a storage shed is not limited.
SA D1.5 Distance between alternative exits
Notwithstanding (c), exits that are required as alternative means of egress in a farm building must not be more than 80 m apart.
SA D1.9 Travel by non-fire-isolated stairways and ramps
In a bulk grain storage facility, the distance from any point on the floor to a point of egress to a road or open space by way of a non-fire-isolated stairway, non-fire-isolated ramp or ladder is not limited.
SA D1.16 Plant rooms, lift machine rooms, electricity network substations and cell type silos: Concession
in a bulk grain storage facility, a stair or ladder complying with AS 1657 may be used as an alternative means of egress from a cell type silo.
SA D2.15 Thresholds
Notwithstanding the requirements of D2.15, where necessary due to the operational requirements of the building, a doorway serving an area in a farm building may incorporate a step that is not more than 700 mm above the finished floor level.
SA D2.18 Fixed platforms, walkways, stairways and ladders
Areas within a farm building.
SA D2.20 Swinging doors
must swing in the direction of egress unless—
it serves a sanitary compartment or airlock (in which case it may swing in either direction); or
it serves a farm building; and
SA D3.1 General building access requirements
Buildings and parts of buildings must be accessible as required by Table D3.1 and SA Table D3.1a, unless exempt by D3.4.
SA Table D3.1a Additional requirements for access for people with a disability
|Class of building||Access requirements|
In developments consisting of 20 or more residential sole-occupancy units
To and within one residential sole-occupancy unit or 5% of the total number of residential sole-occupancy units provided, whichever is the greater
SA D3.4 Exemptions
In a farm building and a bulk grain storage facility it is not necessary to provide access for people with disabilities to any area if access would be inappropriate because of the particular purpose for which the area is used.