A new pool cage in Manatee or Sarasota County costs $14,000 to $38,000 and takes three to six weeks including engineering and permit. The number that drives the price is not square footage, it is design wind speed. Sarasota County enclosures are engineered to a 150 mph ultimate design wind speed under ASCE 7-22, and every dimension of the frame follows from that. We are Pool Builders Pro, serving Manatee and Sarasota County. For related reading, see Gulf coast pool building.
What the 150 MPH Design Wind Speed Actually Changes
Short answer
It sets the aluminium extrusion size, the beam spans, the anchor spacing into the deck and the screen mesh specification. A cage engineered to the current standard uses visibly heavier uprights than one built in the 1990s.
Design wind speed is not the wind the structure survives, it is the load case the engineer designs to under the Florida Building Code. Since the code's wind provisions were substantially revised, enclosures in this region carry heavier members, more anchors and different fastener specifications than older ones. If your cage predates 2007, it was designed to a different standard and it will not have been retroactively upgraded.
This matters at claim time as much as at storm time. A permitted, engineered enclosure with a signed drawing set is a documented structure. An enclosure erected without a permit is, for insurance purposes, frequently treated as an unpermitted improvement.
Fastener and Corrosion Specifications for Salt Air Exposure
Short answer
Within about three miles of the Gulf, standard aluminium-and-steel fastener combinations corrode at the joint through galvanic action. Stainless fasteners with isolating washers are the difference between a 25-year cage and a 10-year one.
The failure is predictable and it is at the connections rather than the members. On Longboat Key, Siesta Key and the coastal edges of Bradenton, cages fail because the screws rust and the screen pulls out of the spline, not because the aluminium gives way. Specifying 304 or 316 stainless fasteners costs a few hundred dollars more across a whole cage and roughly doubles the service life in that exposure.
Screen choice matters similarly. Standard 18/14 fibreglass mesh is the default. No-see-um mesh at 20/20 blocks the smaller insects that are a real problem near mangrove and creek frontage, at the cost of noticeably reduced airflow. Petscreen in the lower panels is worth it if you have a dog that leans on the screen, and it is far cheaper to install than to retrofit.
Pool enclosure styles, spans and cost in Manatee and Sarasota County
Scroll the table sideways to see all columns.
| Style | Typical cost | Max practical span | Best for |
|---|---|---|---|
| Mansard (angled roof) | $14,000 - $24,000 | About 30 ft | Most residential pools, lowest cost per sq ft |
| Gable (peaked roof) | $18,000 - $32,000 | About 40 ft | Larger pools, more headroom, better rain shed |
| Hip roof | $20,000 - $34,000 | About 36 ft | Matching complex rooflines |
| Two-storey / high profile | $26,000 - $48,000 | Varies | Two-storey homes, screened lanai integration |
| Rescreen of existing frame | $1,800 - $5,500 | n/a | Sound frame, failed mesh only |
Costs assume engineering to current design wind speed and permitted installation.