You are designing a three-story office building (Occupancy B) with 20,000 square feet per floor. What types of construction will you be permitted to use under the IBC if you do not install sprinklers?

not provide the sprinklers, then the type of construction will be Type II B under IBC

Explanation:

given data

3 story office building = 20,000 square feet per floor

solution

we know when sprinkler is provide in high rise building to resist fire

and it provide in building as floor area exceed allowable permissible area of  building as IBC

so IBC for Type II B allowable area =  19000 square feet per floor

and type III B allowable area =  23000 square feet per floor

so when we design the building by type III B construction, the sprinklers require to provide

but not provide the sprinklers, then the type of construction will be Type II B under IBC

do you have any options?