The Florida Building Code has separate volumes for residential and commercial construction. The FBC Residential (FBC-R) applies to one- and two-family dwellings and townhouses; the FBC Building (FBC-B) applies to all other buildings. Understanding which volume applies to your project is the first step in code compliance.
Quick Answer
Esta página compara el Código de Construcción de Florida para proyectos residenciales y comerciales, destacando las regulaciones específicas. Pineland Engineering (PE 39202, AR102594) ofrece servicios en toda Florida. Contáctenos al (239) 233-5133.
When FBC Residential Applies
FBC Residential (FBC-R) applies to detached one- and two-family dwellings and townhouses not more than three stories in height.
This includes single-family homes, duplexes, and townhouses. FBC-R is based on the International Residential Code (IRC) with Florida-specific amendments. For most single-family home projects in Florida, FBC-R is the applicable code.
When FBC Building Applies
FBC Building (FBC-B) applies to all buildings not covered by FBC-R, including: multi-family residential buildings (three or more units), commercial buildings, mixed-use buildings, and institutional buildings.
FBC-B is based on the International Building Code (IBC) with Florida-specific amendments.
Key Differences Between FBC-R and FBC-B
The key differences between FBC-R and FBC-B include: occupancy classifications (FBC-B uses IBC occupancy classifications; FBC-R does not), fire protection requirements (FBC-B has more stringent fire protection requirements for larger buildings), accessibility requirements (FBC-B requires ADA compliance; FBC-R does not for single-family homes), and structural design methods (FBC-B references ASCE 7 for all loads; FBC-R has prescriptive wind and seismic provisions for simple structures).
Free Florida Engineering Tools
Related Resources
Frequently Asked Questions
Does the Florida Building Code Residential apply to a duplex?
Yes. FBC-R applies to one- and two-family dwellings, including duplexes. A triplex (three-unit building) is subject to FBC-B.
Does a townhouse fall under FBC Residential or FBC Building?
Townhouses not more than three stories in height fall under FBC-R. Townhouses more than three stories in height fall under FBC-B.
Does a 4-unit apartment building fall under FBC Residential or FBC Building?
A four-unit apartment building falls under FBC Building (FBC-B), not FBC Residential. FBC-R applies only to one- and two-family dwellings and townhouses up to three stories.
What is the difference between FBC-R and the IRC?
The Florida Building Code Residential (FBC-R) is based on the International Residential Code (IRC) with Florida-specific amendments for wind loads, flood zones, energy code, and other Florida conditions.
Which Florida Building Code volume applies to a mixed-use building?
A mixed-use building (e.g., retail on the ground floor with apartments above) is governed by FBC Building (FBC-B), not FBC Residential.
Florida-Licensed · AR102594 · PE 39202 · Bilingual EN/ES
Ready to Start Your Project?
Pineland Engineering — Designda Inc. — serves residential and commercial clients statewide. FL Architecture AR102594 · Engineering PE 39202. PO Box 417, Pineland, FL 33945.