How To Work Out External Floor Area

Floor areas in property development can often cause a fair bit of confusion when do you use gross internal area when does the net apply and what about gross external area.

How to work out external floor area.

To the external face of the perimeter walls at each floor level the rules of measurement of gross external floor area are defined in the latest edition of the rics code of. The ways of defining total area depend on what factors of the building should or should not be included such as external walls internal walls corridors lift shafts stairs etc. Net internal area nia. Use this calculator to work out the floor area of a room if you re room is rectangular then simply enter the width and depth of the room and the unit of measure and the resulting floor area of the room will be calculated in several different units of measure both metric and imperial useful if you are meauring the room in one unit but for example the.

To paint wallpaper or panel a wall you must know the total area of the wall so you can buy the appropriate amount of finish. Gross internal area gia or gross internal floor area. You need to find the gross external floor area gefa of your house both upstairs and downstairs. The best way is to go outside and measure the length and width of your house and multiply those figures together.

Bcis highlighted that for three storey houses only 70 of the floor area of the third storey would need to be included. You can get the length and width from the blueprints or you can easily measure it from wall to wall. There are many ways to calculate the total area of your floor plan. Calculating the floor area of a room.

Calculate the area of each room by multiplying the length by the width. Gefa is defined as the area of a dwelling measured externally at each floor level. Calculate the total internal area by adding the areas of the rooms and the areas of the internal wall space. To calculate an upstairs floor area it may be possible to simply double the ground floor area but if it is a different size calculate the upstairs area separately and add the figures together.

You can measure the perimeter of a room to calculate the wall area but if you already know the floor area of the room from floor plans for example it may be quicker to calculate the wall area based on that number if your room is square or round. Order of cost estimating and cost planning for capital building work the gross external area is the area of a building measured externally i e.