![]() ![]() The combined dimensions of G must not exceed one-third of the floor area (See E above) of the room or space. The letters represent the following minimum dimensions:Ī = 2.4m Habitable room (excluding a kitchen – 2.1m)ī = 2.4m Habitable room - two-thirds of the floor areaĬ = 2.1m Non -habitable room two-thirds of the floor areaĭ = 2.2m An attic to be habitable - two-thirds of the floor areaĮ = 1.5m Calculating the floor area of a room or space, any ceiling height of 1.5m is excludedį = 2.0 Stairs (measured vertically above the nosing line) This diagram has simply been provided to give clarity as to where and how the measurements are to be applied. Please note the actual standards for measuring ceiling height have not changed. BCA 2011 now includes a diagram and accompanying notes that makes it very clear how to measure ceiling heights for the different areas in a house. Use a pencil to jot the width down somewhere. 1 For example, the width of the building may be 72.75 inches (184.8 cm). Measure as precisely as possible, down to the 14 inch (0.64 cm), 18 inch (0.32 cm), or 116 inch (0.16 cm). Below is BCA info from 2011 but is the same in 2012 editionĬlause 3.8.2.2 of BCA Volume Two sets out the minimum requirements for ceiling heights in dwellings. Use a tape measure to measure the entire width of your building. for rafters depending on their location, shape, or size (see below). Is there room/possibility to excavate somewhat before the slab goes down if required heights can't be met with current plan. A rafter is one of a series of sloped structural members such as wooden beams that extend. Your floor to ceiling height depends on use of extension so to get it past council you will have to consider this first. ![]() A drafty can do this but you'll need to discuss with them what is important, such as your height problem. ![]()
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