The bca sets out the minimum ceiling heights for different rooms.
Minimum ceiling height attic bedroom.
Section r305 1 1 indicates the minimum ceiling height for basements without habitable spaces and hallways.
Living areas and hallways must have a ceiling height of 7 feet or more and bathrooms and laundry rooms must be at least 6 feet 8 inches tall.
If a room has a sloping ceiling which is common in attics at least 50 percent of the room area must have a 7 foot ceiling.
Quite easily but i d recommend keeping above 240 cm for living areas and master bedrooms if you can.
As a result you can t choose to go lower than these requirements laid down by this code.
Portions of a room with a sloping ceiling measuring less than 5 feet 1524 mm or a furred ceiling measuring less than 7 feet 2134 mm from the finished floor to the finished ceiling shall not be considered as contributing to the minimum required habitable area for that room.
In an attic room with a sloping ceiling or projection below ceiling line or non habitable room or similar a height that does not unduly interfere with the proper functioning of the room or space.
The standard ceiling height for most houses in australia is 2 4m.
Minimum ceiling height.
210 cm 200cm if really pushing it standard ceiling height.
You could get away with 210 cm 240 cm for studies bathrooms children s rooms etc.
One way is by working within the home s existing footprint and converting the attic into living space.
In a stairway 2 0m measured vertically above the nosing line.
The minimum ceiling height in rooms with sloped ceilings such as a finished attic space is 7 feet over at least 50 percent of the room area.
More than 50 of the ceiling space should be on average a minimum height.
However you can pay extra for it to be higher at 2 55m 2 7m or 3m when building.
R304 4 height effect on room area.
Minimum ceiling height for basements with no habitable spaces section r305 1 1.
The rest can be less than 7 feet.
Basements without habitable spaces and hallways shall have a minimum ceiling height of no less than 6 feet 8 inches.
In a room or space with a sloping ceiling or projections below the ceiling line within a a open link in same page habitable room aa in an attic a height of not less than 2 2 m for not less than two thirds of the open link in same page floor area of the room or space.