Floor Area Per Occupant Net Vs Gross

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.

Floor area per occupant net vs gross.

What is the difference between a net and a gross occupant load factor. Factors are based on either gross or net floor area. For classrooms both the ibc and nfpa 101 list an occupant load factor of 20 net square feet per person. Per occupant agricultural building.

Table 1004 1 2 maximum floor area allowances per occupant. Table 1004 1 2 displays the occupant load factor based on the function or use of a space or room. The gross floor area shall not include shafts with no openings or interior courts. For classrooms both the ibc and nfpa 101 list an occupant load factor of 20 net square feet per person.

Commercial office floor area calculation methods. A gross factor is applied to the entire floor area including the area occupied by interior walls corridors columns fixed furnishings shafts and the like. Occupant load is the calculated number of people or the actual number whichever is greater. Floor gross square feet fgsf and building gross square feet bgsf represent the overall footprint of a floor or building respectively and include shared public corridors and atriums elevators stairs the space occupied by the building s exterior wall and major mechanical spaces which generally account for an additional 20 to 30.

Floor area in sq. The actual occupied area not including unoccupied accessory areas. Gross floor area is measured within the inside surface of the walls and includes all occupiable and nonoccupiable spaces. You will notice that some of the factors are calculated using net and others gross.

Gross floor area is measured within the inside surface of the walls and includes all occupiable and nonoccupiable spaces.