Antigua Boat Lift Canopy Frame
The Antigua is Coastline's direct-coverage canopy frame — featuring drop-down sides that shield both your boat and dock without a horizontal overhang. Ideal for tight spaces and clearance-sensitive docks, and available with an optional I-beam reinforcement upgrade for premium structural strength.
Get a Free EstimateAbout the Antigua Frame
The Antigua takes a different approach to boat lift canopy coverage than the V-shape frames in Coastline's lineup. Instead of an extended horizontal overhang, the Antigua uses drop-down sides that angle directly downward from the frame's peak, wrapping coverage tightly around the boat and dock without projecting outward. The result is a compact, efficient coverage profile that works exceptionally well in situations where horizontal clearance is limited or where a more enclosed coverage geometry is preferred.
Drop-down sides offer a distinct protection advantage in certain conditions. By directing the canopy fabric downward along the sides of the boat rather than flaring outward, the Antigua channels wind-driven rain and spray away from the hull and dock area more directly. Boats that sit lower in the water, or that are positioned close to dock edges and neighboring structures, often benefit from this tighter coverage geometry over a wider-flaring overhang design.
Where the Antigua truly distinguishes itself is through its optional I-beam reinforcement upgrade — a premium structural enhancement that takes this frame from solid, reliable performance to best-in-class rigidity. When the I-beam option is selected, the Antigua's aluminum uprights are replaced with solid I-beam sections that distribute wind and load forces with the same structural logic used in bridges and commercial buildings. This makes the I-beam Antigua the right choice for docks in exposed locations where a tight coverage profile and maximum structural strength are both required — a combination no other Coastline frame offers in exactly this way.
Like all Coastline frames, the Antigua is built with four baseplates and uprights per side, closer-than-standard rafter spacing, Patio 500® vinyl-laminated polyester fabric in 30 colors, and GORE® TENARA® thread carrying a lifetime stitching guarantee. Custom-measured and installed by Coastline's professional team, every Antigua is built specifically for your boat lift — not off a shelf.
Antigua Frame Specifications
| Specification | Detail |
|---|---|
| Frame Profile | Direct-coverage design with drop-down sides — no horizontal overhang |
| Side Design | Drop-down sides that shield boat hull and dock edges directly |
| Frame Material | Marine-grade aluminum (standard); aluminum I-beam (premium upgrade) |
| I-Beam Upgrade | Available — premium differentiator; upgrades uprights to solid I-beam sections for maximum structural rigidity |
| Uprights & Baseplates | 4 per side — superior lateral stability, reduces stress on lift |
| Wind Resistance | High (standard aluminum); Maximum (with I-beam upgrade) — tight coverage profile reduces lateral wind surface |
| Rafter Spacing | Closer than industry standard — reduces fabric stress and extends canopy lifespan |
| Canopy Fabric | Patio 500® vinyl-laminated polyester — marine-grade, 30 color options |
| Thread | GORE® TENARA® — lifetime UV and salt-air resistance |
| Fabric Properties | Waterproof, UV-resistant, heat-reflective, tear-resistant, mildew-resistant |
| Frame Warranty | 10 years |
| Canopy Warranty | 5 years (limited) |
| Stitching Warranty | Lifetime guarantee |
| Expected Lifespan | 10–15 years with proper coastal maintenance |
| Custom Fit | Yes — professionally measured and built to your boat lift |
| Available As | Complete system, frame only, or canopy cover replacement |
Premium Option: I-Beam Reinforcement for the Antigua
The Antigua's optional I-beam upgrade is what sets this frame apart from any other tight-coverage canopy option on the market. Standard round-tube aluminum handles most waterfront conditions well — but when you need structural confidence in an exposed or high-wind environment, the I-beam upgrade transforms the Antigua into a fortress-grade canopy system. The I-beam distributes wind load across the frame the same way I-beam construction works in commercial buildings and bridges: efficiently, with no single point of failure. If you're in an exposed location and want direct coverage without the horizontal footprint of an overhang design, the I-beam Antigua is the premium choice. Ask about the I-beam upgrade during your free estimate.
Standard vs. I-Beam Antigua — At a Glance
| Feature | Antigua Standard | Antigua with I-Beam |
|---|---|---|
| Frame material | Marine-grade aluminum | Solid aluminum I-beam sections |
| Wind load distribution | High performance | Maximum — commercial-grade |
| Ideal for exposed docks | Moderate-exposure locations | High-exposure and storm-prone areas |
| Drop-down sides | Yes | Yes |
| Direct coverage (no overhang) | Yes | Yes |
| 10-yr frame warranty | Yes | Yes |
| Patio 500® fabric, 30 colors | Yes | Yes |
| GORE® TENARA® thread | Yes | Yes |
Who Is the Antigua Best For?
The Antigua's unique drop-down side design and optional I-beam upgrade make it the right solution for specific situations that other frames don't serve as well:
- Tight dock configurations — if your boat lift sits close to a seawall, dock edge, neighboring lift, or property boundary, the Antigua's direct-coverage profile delivers full protection without an outward overhang that might interfere with adjacent structures or walkways.
- Boats where side protection matters — the drop-down sides provide better lateral coverage against wind-blown spray and rain than open-overhang designs, making the Antigua a strong choice for boats with open cockpits or lower freeboard that are more susceptible to side exposure.
- Exposed locations requiring maximum structural strength with a compact profile — the I-beam upgrade Antigua is the only Coastline option that combines tight, direct coverage geometry with commercial-grade I-beam construction. It's a premium combination for owners who need both.
- Owners who prefer an enclosed dock aesthetic — the drop-down sides create a more fully enclosed look that some boat owners prefer, offering a greater sense of security and enclosure at the dock.
- Replacement projects on existing Antigua-style frames — if you're replacing an older canopy with drop-down sides, the Antigua ensures a like-for-like design upgrade with Coastline's premium materials and warranties.
Warranty & Quality Guarantee
Industry-Leading Protection — Built to Last 10–15 Years
Every Antigua canopy system — standard or I-beam — is covered by Coastline's comprehensive warranty. Premium materials. Expert installation. Protected investment.
Aluminum structure (standard or I-beam)
Patio 500® fabric (limited)
GORE® TENARA® thread
Frequently Asked Questions
What are drop-down sides and how do they differ from an overhang?
An overhang extends the canopy fabric horizontally outward from the frame's edge before dropping, creating a shelf effect that provides shade coverage to the dock area. Drop-down sides angle directly downward from the frame edge, directing coverage along the side of the boat rather than extending outward. This is a more compact profile that works better where horizontal space is limited and where tighter lateral coverage is preferred over extended shade reach.
Is the I-beam upgrade worth it for the Antigua?
For most sheltered canal locations, the standard aluminum Antigua provides reliable, high-quality performance. For exposed docks on open water, wider canals, or areas prone to stronger storm-season winds, the I-beam upgrade significantly increases structural rigidity and provides greater confidence through Florida's hurricane season. Our team will give you an honest assessment of whether your specific location warrants the upgrade during your free estimate.
How does the Antigua compare to the Dominica's I-beam frame?
Both the Antigua with I-beam upgrade and the Dominica use I-beam aluminum construction, but they serve different coverage geometries. The Dominica has a V-shape with 12–30 inch horizontal overhang — great for extended dock shade and larger boats. The Antigua with I-beam has drop-down sides and no horizontal overhang — ideal for tight spaces, compact dock configurations, and situations where lateral coverage is prioritized over extended horizontal reach. Compare the Dominica frame.
Can I get the Antigua in the same colors as other Coastline styles?
Yes. All four Coastline frame styles use the same Patio 500® fabric in 30 available colors. Whether you're coordinating across multiple lifts, matching an HOA requirement, or selecting a color to complement your home, the full color palette is available for any frame style including the Antigua.
Is the Antigua eligible for Coastline's hurricane protocol?
Yes. All Coastline frame styles, including the Antigua, are covered under the hurricane protocol. Pre-scheduling removal before storm season guarantees a protected canopy and priority service placement. Learn more about the Hurricane Protocol.
Can I order just the Antigua frame, or just a replacement canopy?
Yes. The Antigua is available as a complete system (frame + fabric), as the frame only, or as a replacement canopy cover for an existing Antigua-style frame. Coastline also repairs boat lift canopies from other manufacturers — ask about repair services if you have an existing frame in good condition.
Explore All Four Frame Styles
The Antigua is one of four frame styles from Coastline. Compare all options to find your ideal fit.
Serving Boat Owners Across Southwest Florida
Coastline installs Antigua canopy frames throughout Southwest Florida. Click your area for local service details:
Get a Free Estimate for the Antigua Frame
Want to know if the Antigua — standard or I-beam — is right for your boat and dock? Our team visits your property, measures your lift, assesses your exposure conditions, and provides a no-cost custom quote. No obligation required.
Request My Free Estimate