Construction Floor Area And Gross Floor Area

The usable floor area of a building for the function intended which is based on the gross floor area gfa of the building minus one or more of the sub areas of the building.

Construction floor area and gross floor area.

What is the differenc between construction floor area and gross floor area. The floor area of a building or portion thereof not provided with surrounding exterior walls shall be the usable area under the horizontal projection of the roof or floor above. The net floor area nfa of the private units in a residential condo building is typically 60 of the gross floor area gfa. Gross floor area gfa the total floor area contained within the building measured to the external face of the external walls.

The net floor area nfa includes the area of usable areas of all floor plan levels located between rising components of the building. For instance if the gross floor area of a building across three floors is 200 sq m and the plot area is 100 sq m far 200 100 2. Secondary structures balconies loggias terraces and building structures are not taken into account. These include construction.

Construction floor area is used to measure and estimate costs related to the construction of a building. Gross internal area gia the floor area contained within the building measured to the internal face of the external walls. 4 the gross floor area is divided into the net floor area and the construction floor area. The gross floor.

A building s construction floor area is important for not only controlling costs but also for designing standard fixtures and other physical properties found in most residential and commercial structures. What is floor area ratio. The floor area ratio is the relationship between the total amount of usable floor area that a building has or has been permitted to have and the total area of the lot.