Grady White 366 — Quick-Reference Specs
- Boat Model: Grady White 366
- Cover Type: T-Top Boat Cover
- Status: Current Production (2019–present)
- Length Overall (LOA): 36'6"
- Beam: 11'4"
- Dry Weight: ~13,000 lbs
- Engine: Triple outboards, max 1,200 HP (triple Yamaha 400s)
- Fuel Capacity: 500 gallons
- Deadrise: 22°
- Draft: 26"
- Hull Type: SeaV² center console
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 36'6" center console with triple-engine configuration
- 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 | 48 lbs |
|---|
Install
Please watch the video below for installation instructions!
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Frequently Asked Questions
The 366 is a 36'6" center console that enters the territory traditionally dominated by sportfishing yachts. At 13,000 lbs dry weight with an 11'4" beam, triple outboards up to 1,200 HP total, and 500 gallons of fuel for 600+ miles of range, the 366 is built for the most ambitious offshore fishing operations. It features an enclosed head with shower, forward seating area, massive fishbox capacity, and a cockpit large enough for a full tournament crew.
With 500 gallons and triple Yamaha 400 HP outboards, the 366 achieves 600+ miles of range at cruise speed. This supports multi-day expeditions to the most distant fishing grounds imaginable—canyons 120+ nautical miles offshore, extended Gulf Stream trolling campaigns, and exploration of remote deep-water structure. The 366 eliminates fuel as a limiting factor in offshore fishing.
The 366 accommodates triple outboards up to 400 HP each (1,200 HP total). Triple Yamaha F350s provide exceptional performance with 55+ mph top speed, while triple F400s deliver the maximum thrust for rough-water acceleration and heavy-load efficiency. The triple-engine configuration provides the redundancy that responsible offshore fishing demands.
The 11'4" beam creates the widest, most stable fishing platform in Grady White's center console lineup. At rest, the 366 feels like a floating dock—virtually eliminating roll during drift fishing and providing rock-solid footing while fighting large pelagics. The wide beam also creates an expansive cockpit with wide walkways and ample workspace for multiple anglers working fish simultaneously.
The 366 features insulated fishboxes totaling 650+ quarts—the most in any Grady White center console. The massive center transom fishbox with interior lighting handles the largest game fish, while forward in-deck boxes and additional storage compartments provide room for multi-day tournament catch volumes. The 45-gallon recirculating livewell keeps bait alive through extended offshore sessions.
The 366 includes an enclosed head compartment with marine head, sink, and freshwater shower—genuine amenities for multi-day offshore operations. Forward seating with convertible lounge area, freshwater system with tank, raw-water washdown, and premium audio system create comfort that rivals much larger sportfishing boats. This is a center console designed for dawn-to-dark offshore days.
At 13,000 lbs, the 366's mass combined with the 22° deadrise creates an exceptionally stable, smooth ride in the roughest offshore conditions. The SeaV² hull handles 6–8 foot seas with confidence, maintaining composure in steep swells and confused cross-seas. The heavier displacement actually improves ride quality compared to lighter boats with the same deadrise—the 366 plows through waves rather than bouncing over them.
The 366's triple-engine transom is significantly wider than smaller models. Perfect Fit's cover pattern creates a large aft pouch that drapes over all three outboards as one continuous covering, with additional reinforcement to handle the massive surface area, the 11'4" beam tension dynamics, and the weight of fabric spanning the widest transom in the Canyon lineup.
Absolutely. The 366 competes directly with dedicated sportfishing boats in range, fish-handling capability, and fishing cockpit workspace—while offering the 360-degree walk-around access that center consoles provide for fighting fish. The fishbox capacity, livewell system, range, power, and crew accommodations meet the requirements of the most demanding offshore tournament circuits.
At this price point, a Perfect Fit cover is one of the most cost-effective investments in preserving your boat's value. The 366's extensive gel coat surface area, premium upholstery, multiple electronic displays, fishbox insulation, and livewell components represent significant replacement costs. A cover prevents the cumulative UV and salt damage that accelerates wear and depreciation.
Grady White 366 T-Top Boat Cover
The Grady White 366 is a 36’6″ triple-engine center console that enters territory traditionally owned by sportfishing yachts. At 13,000 lbs dry weight with a commanding 11’4″ beam, the 366 is powered by triple Yamaha outboards up to 1,200 HP total and carries 500 gallons of fuel for 600+ miles of offshore range. The fishing platform is built without compromise: insulated fishboxes totaling 650+ quarts with interior lighting, 45-gallon recirculating livewell, fiberglass T-Top hardtop with rod holders and spreader lights, enclosed head with shower and sink, forward seating area, lockable rod storage, built-in tackle stations, and the widest cockpit in the Canyon lineup with full 360-degree walk-around access.
Your 366 requires a Perfect Fit custom T-Top cover engineered for the massive 11’4″ beam and triple-engine transom configuration. Our cover wraps the full hull below the hardtop, protecting the center console, enclosed head, fishbox insulation, livewell plumbing, helm electronics, forward seating, cockpit surfaces, and triple-engine assembly from UV exposure, salt spray, and moisture. Solution-dyed marine fabric (5–7 years) or premium Sunbrella acrylic (8–10 years) preserves your premium offshore investment through seasons of canyon fishing or marina storage.
Sportfish-Class Center Console — 600-Mile Range, Zero Compromises
The 366 redefines what a center console can accomplish offshore. Triple outboards deliver up to 1,200 HP with triple-engine redundancy, and 500 gallons of fuel provide 600+ miles of range to reach fishing grounds that most boats can only dream of. The 22° deadrise SeaV² hull handles 6–8 foot seas with the composure that 13,000 lbs of displacement and an 11’4″ beam demand, while the 650+ quarts of insulated fishbox storage and 45-gallon livewell handle the most demanding multi-day tournament scenarios. The enclosed head with shower and the forward seating area provide amenities for dawn-to-dark offshore campaigns.
Engineering & Large-Format Precision Fit
Perfect Fit’s cover engineers custom-measure your 366’s large-format T-Top hardtop, center console with enclosed head, fishbox drains, livewell ports, forward seating structures, rod holder positions, radar pod, 11’4″ beam, and triple-engine transom layout to create a precision-fit pattern for one of the largest center consoles in production. The reinforced stitching and hem cord secure the cover at the rubrail, while heavy-duty adjustable tie-down straps distribute tension evenly across the wide beam. The aft section extends into a wide, loose pouch that envelops all three engines as a single continuous covering without binding.
Explore the Grady White Collection
Perfect Fit Boat Covers offers custom T-Top covers for every Grady White model. Browse our T-Top boat cover collection for all available models, or compare the Grady White 376 boat cover for the flagship center console. For a classic Fisherman series boat, explore the Grady White 25 Sailfish boat cover.
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