Cape Horn 27 OS Specifications
- Length Overall (LOA): 26'9"
- Beam: 9'0"
- Dry Weight: ~4,200 lbs
- Engine: Twin outboard, max 450 HP total
- Fuel Capacity: ~175 gallons
- Draft: ~19"
- Hull Type: 21° deep-V, foam-filled unsinkable composite with proprietary cutwater and reverse chines
Cover Features
- Fabric Options: 9oz solution-dyed marine fabric or premium Sunbrella acrylic
- Coverage Type: T-Top cover wraps hull below hardtop; hardtop remains exposed
- Construction: Reinforced stitching, hem cord at rubrail, adjustable tie-down straps
- Durability: Solution-dyed fabric (5-7 years); Sunbrella acrylic (8-10 years)
- Fit: Custom-fitted to 26'9" Cape Horn 27 OS specifications
- Protection: UV-resistant, water-repellent, weatherproof
Additional information
Choose Your Cover Fabric
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
7 oz. Polyester — Our entry-level marine cover fabric, woven from 100% polyester fiber at a 7 oz. per linear yard weight. This lighter option keeps the cover manageable for solo handling while still delivering reliable protection against sun, rain, and debris. Backed by a 3-year fabric warranty. Ships in Black.
9 oz. Polyester — Step up to our heavy-duty polyester, engineered at 9 oz. per linear yard for boats that face tougher conditions or extended outdoor storage. The denser weave adds an extra layer of defense against abrasion and weather without adding unnecessary bulk. Protected by a 5-year fabric warranty. Ships in Navy or Black.
Sunbrella® — For boaters who want the best, our Sunbrella covers use 100% solution-dyed acrylic — the same fabric trusted by marine professionals worldwide. Naturally resistant to fading, mold, and water damage, Sunbrella holds its color and integrity season after season. Covered by a 6-year fabric warranty. Ships in Black, Smoke, or Marine Blue.
Both polyester options feature solution-dyed construction, where pigment is infused into each fiber during production rather than applied to the surface afterward. This process locks color deep into the material, preventing any dye transfer to your boat’s gel coat or finish. The result is a cover that stays vibrant without bleeding or rubbing off. Our polyester is also designed to breathe — it allows moisture trapped underneath to vent out naturally, reducing the risk of mildew and keeping your boat dry. The fabric holds its form without sagging or stretching over time, stays lightweight enough for one person to handle, and stands up to prolonged UV exposure and harsh marine weather.
*The warranty periods above are provided by the fabric manufacturer and cover the material itself. For details on what’s included in the warranty for your completed cover, please see our warranty page.
| Weight | 37 lbs |
|---|
Install
Please watch the video below for installation instructions!
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Frequently Asked Questions
The Cape Horn 27 OS cover comes in 9oz solution-dyed marine fabric (rated 5-7 years) or premium Sunbrella acrylic (rated 8-10 years). Both are water-repellent, UV-resistant, and mildew-resistant. The 9oz is available in Navy, Black, and Charcoal.
Yes. The cover features reinforced cutouts for the T-Top legs and extends aft to cover the full transom area including twin-engine rigging. The hardtop remains exposed while everything below is protected.
Under 5 minutes for one person. Drape the cover, align the T-Top cutouts, secure the hem cord at the rubrail, and buckle the adjustable straps. No tools needed.
Yes. Reinforced double-stitched seams, a cinching hem cord, and adjustable tie-down straps keep the cover secure at highway speed. The 27 OS's 4,200 lb hull provides stable towing with the cover in place.
Yes. The cover extends over the full transom area, creating a barrier over engine rigging, controls, and the cowling area. This reduces UV degradation and salt corrosion on components between trips.
Every cover includes a 2-year manufacturer warranty covering defects in materials and workmanship. The fabric is rated for 5-7 years (9oz) or 8-10 years (Sunbrella) of continuous outdoor exposure.
Water-resistant with a breathable DWR finish. Sheds rain and dock spray while allowing air circulation underneath — preventing trapped moisture that causes mildew and corrosion on the 27 OS's interior.
No. The 27 OS and 27 XS share hull dimensions but have different deck layouts — the XS adds expanded seating and storage. Each gets its own pattern-specific cover to match its unique configuration.
Yes, the cover fits all 27 OS model years with a factory T-Top. The 27 OS is a discontinued model succeeded by the 27 XS — the cover pattern matches the original OS deck layout.
Yes — free standard shipping to the continental United States. Most orders ship within 1-2 business days.
Cape Horn 27 OS T-Top Boat Cover — Twin-Engine Offshore Power Under Premium Protection
The Cape Horn 27 OS put twin-engine offshore performance into a 26’9″ hull with a 9-foot beam, 4,200 lbs of foam-filled composite construction, and room for up to 450 HP across twin outboards. Cape Horn’s proprietary cutwater and reverse chines — refined by the Fabbro family over three decades in Milton, Florida — keep spray down and the ride quiet even when conditions deteriorate. The 175-gallon fuel tank gives you range for all-day offshore runs, and there’s serious hardware exposed to salt and UV every trip — twin powerheads, console electronics, leaning post upholstery, and cockpit gel coat. A custom-fitted T-Top boat cover from Perfect Fit keeps all of it shielded between trips, and the right Cape Horn boat cover fits the hull precisely rather than flapping loose like a generic tarp at the dock.
Pattern-Cut to the 27 OS’s Dedicated Offshore Layout
This cover is pattern-cut to the Cape Horn 27 OS’s specific dimensions, wrapping beneath the T-Top hardtop while leaving the fiberglass roof exposed. Reinforced cutouts accommodate the T-Top legs, and the cover drapes cleanly over the walk-in console, leaning post, and rod holders without snagging or pooling. The twin-engine transom area is fully covered, protecting powerheads, controls, and rigging from UV degradation and salt corrosion between trips. Installation takes one person under five minutes — secure the hem cord at the rubrail, buckle the adjustable tie-down straps, and the reinforced construction keeps everything tight whether the boat sits on a trailer, a lift, or in a slip. The Cape Horn 27 XS T-Top cover fits the current-production evolution of this hull with expanded seating and a bump to 600 HP.
Cover Protection for a Hull Built to Last a Lifetime
Cape Horn backs the 27 OS with a 10-year hull warranty and a lifetime transom guarantee — the cover protecting it should be equally serious. Our 9oz solution-dyed marine fabric handles 5-7 years of offshore-level UV and salt resistance, with a breathable DWR finish that prevents the trapped moisture that rots upholstery and corrodes electrical connections underneath. Premium Sunbrella acrylic extends protection to 8-10 years for year-round outdoor storage. Double-stitched seams resist wind-driven fraying, and every cover ships with a 2-year manufacturer warranty and free standard delivery. For anglers stepping up to tournament-class 32-foot offshore fishing, the Cape Horn 32 T T-Top cover delivers 800 HP capability on triple outboards with the same precision-fit engineering.
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