Attic Height Requirements Australia

Required space in order to meet the roof height standards imposed by the building code of australia at least 60 of your attic space needs to be a minimum of 2 4 metres high if you want to use it as an extra living space.

Attic height requirements australia. The product of the going measured in millimetres and the rise measured in millimetres shall be not less than 45 000 and not greater than 48 000. 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. And even though it is rare to go below that figure for certain rooms in the house the ceiling heights can be as low as 2 1m. These loading requirements differ for stair landings.

1 4m min side wall heights. The general standard ceiling height in australia is set to be 2 4m but this is not set in stone as some builders choose to go as high as 3m but this increases the cost to build a house. Each rise shall be not less than 130 mm and not greater than 225 mm. Please be aware of the definition and egress requirements of a habitable attic as it relates to dwellings built from the 2012 irc.

Attics that meet the size and ceiling height criteria of the habitable attic definition in chapter 2 are considered habitable. Windows skylights and ventilation. Ventilation natural light requirements roof windows. Floating stairs have been a major staircase design trend for almost a decade fitting in perfectly with progressive minimalist architecture.

2m head clearance on staircase. In a stairway 2 0m measured vertically above the nosing line. More than 50 of the ceiling space should be on average a minimum height. The 2009 and 2015 irc verbiage is similar and still applicable.

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. Each going shall be not less than 215 mm and not greater than 335 mm.