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Disability Discrimination Act (DDA)

Clear widths
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Direction of approach of wheelchair New buildings Existing buildings
Straight-on (without a turn or oblique approach) 800mm 750mm
At right angles from an access route at least 1 500 mm wide 800mm 750mm
At right angles from an access route at least 1 200 mm wide 825mm 775mm
At right angles from an access route at least 900 mm wide N/A 800mm
External doors and internal lobby doors at the entrance of buildings used by the general public 1000mm 775*
*Where the entire frontage is being replaced, the width for a new building should be used.
Vision panels
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Key
1 - Minimum zone of visibility between 500 mm and 1 500 mm above floor level, with maximum interruption of 350 mm vertically within the zone
2 - Maximum obstruction (X + X + X) no more than 350 mm
Door opening furniture
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Location of door opening and closing furniture - Dimensions in millimetres
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Location of door opening and closing furniture - Dimensions in millimetres
Key: Description:
1 Cranked pull handle, 19 mm to 35 mm diameter
2 Vertical pull handle, 19 mm to 35 mm diameter
3 Horizontal pull rail to help people close the door behind them
4 Lever handle
5 800 mm to 1 050 mm (900 mm preferred)
6 Bottom end of pull handle no lower than 700 mm and no higher than 1 000 mm above the floor
7 Top end of pull handle no lower than 1 300 mm above the floor
8 Fixing centres close to door edge
9 Doors with narrow stiles require cranked pull handles with an offset of not less than 50 mm from the door edge
NOTE 1 - The lever handles and pull handles shown on this drawing will not necessarily be used on the same face of a door.
NOTE 2 - Although the conventional ā€œDā€ pull handle is shown in the figure, other patterns of pull handle are acceptable, provided they conform to the dimensional critera.