Allowable Area Per Floor And Total Area

Determine the floor area of each story of the building.

Allowable area per floor and total area. 10 000 ft2 story 2 floor area 50 ft. G 10 000 ft 2 10 000 ft2 20 000 ft step 4. Story 1 floor area 50 ft. For buildings designed as separated occupancies under section 508 4 and equipped throughout with an automatic sprinkler system installed in accordance with section 903 3 1 2 the total building area shall be such that the aggregate sum of the ratios of the actual area of each story divided by the allowable area of such stories determined in accordance with equation 5 3 based on the applicable provisions of section 508 1 shall not exceed four.

Determine the gross floor area of the building. Allowable area per floor. Allowable area per floor tabular area per floor table 503 area increase factor due to frontage calculated below and automatically entered here area increase percentage factor due to sprinkler protection from section 506 3 if 100 f p 0 25 w 30 frontage increase factor 2003 ibc section 506 2. This term describes the total floor area included within the surrounding exterior walls of a building and the definition further states that the floor area of the 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.

17424 sq ft total allowable area 17424 sq ft maximum allowable height. The floor area ratio of a 1 000 square foot building with one story situated on a 4 000 square foot lot would be 0 25x. If a building s area exceeds the maximum allowable building shotfarm area per story it must be made smaller or separated into multiple buildings. This preview shows page 8 13 out of 23 pages.

For buildings designed as separated occupancies under section 508 4 and equipped throughout with an automatic sprinkler system installed in accordance with section 903 3 1 2 the total building area shall be such that the aggregate sum of the ratios of the actual area of each story divided by the allowable area of such stories determined in accordance with equation 5 3 based on the applicable provisions of section 508 1 shall not exceed four. Note that this ibc 503 3 check is still under review for compliance with ibc intent. Creating multiple buildings is accomplished by installing a fire wall to comply with chapter 7 of ibc 2009 and the standard for high challenge fire walls fire walls and fire barrier walls nfpa. Calculate the floor area ratio.

Allowable floor area of building ibc 503 3 3 times the maximum modified area is actual total area less than maximum allowable area. 10 000 ft2 step 3.