The 30-Second Verdict
CBS (concrete block) is the dominant Florida construction method — superior hurricane resistance, termite resistance, and lower insurance costs. Wood frame is faster and cheaper to build but less durable in Florida's environment.
Head-to-Head Breakdown
Concrete Block (CBS) Construction
Pros
- Superior hurricane wind resistance
- Termite-proof exterior walls
- Lower homeowner's insurance premiums in Florida
- Better fire resistance
- Dominant construction method in Central and South Florida
- Better resistance to storm surge water damage
Cons
- Higher construction cost — $10–$20/sq ft more than wood frame
- Less design flexibility than wood frame
- Harder to modify/renovate after construction
- Slower to build than wood frame
Wood Frame Construction
Pros
- Lower construction cost
- Faster to build
- More design flexibility
- Easier to add, modify, or renovate
- Standard in North Florida and custom home market
Cons
- Higher insurance premiums in Florida's wind zones
- Termite risk — wood framing requires treatment in Florida
- More hurricane vulnerable if not engineered to Florida code
- Requires pressure-treated lumber throughout in Florida's moisture environment
Side-by-Side Comparison
| Concrete Block (CBS) Construction | Wood Frame Construction | |
|---|---|---|
| Factor | CBS (Concrete Block) | Wood Frame |
| Hurricane resistance | Excellent | Good (when code-built) |
| Florida insurance cost | Lower | Higher |
| Termite risk (exterior) | None | High (requires treatment) |
| Construction cost premium | +$10–$20/sq ft | Baseline |
| Renovation flexibility | Lower | Higher |
| Fire resistance | Excellent | Good (with treatment) |
| Dominant FL region | Central/South Florida | North Florida, custom |
Frequently Asked Questions
Why is concrete block construction dominant in Florida?
CBS construction became standard in South and Central Florida following Hurricane Andrew (1992), which devastated wood-frame homes while CBS structures fared better. Florida Building Code subsequently adopted more stringent wind load requirements that CBS construction meets more easily. Insurance companies also recognize CBS construction's superior wind resistance with lower premiums, further incentivizing the method.