Experience the Ultimate Shelter and Accessibility
Sizes available: 6.35, 6.75
Everyone can safely enjoy the joy of boating with the Formosa Enclosed Centre Cabin, designed for full walk-around access and reliable weather protection. This model features a fixed hardtop with a glass windscreen, sliding side ventilation windows, heavy-duty grab rails, and a rocket launcher with seven rod holders. Positioned on a slightly raised casting deck, the walk-around cabin offers enhanced visibility and easy access to the anchor well, making it practical for a range of conditions.
Inside the Enclosed Centre Cabin, you will find carpeted bunks, cabin side pockets, and a footwell with a centre board, providing convenient storage and space for a portable toilet. From March 2023 onwards, all new orders also include a front seat off the cabin, a ventilation hatch, and bunk cushions as standard. Awning tracks welded to the hardtop allow for the installation of clears or canvas to enclose the rear of the cabin, offering additional protection from the elements.
For driver and passenger comfort, the Enclosed Centre Cabin includes two embroidered, high-back folding seats mounted on Aluminium Seat Boxes—now standard. Choose between storage hatches or an open esky provision for your seat boxes to best suit your needs.
Standard features of the Enclosed Centre Cabin include an Electric Motor Mount, six aluminium rod holders on the gunnels, a large aluminium bowroller, 32mm handrails, Tow-Catch™ Trailer capability, a heavy-duty dive ladder, quality steering, a moulded fuel tank with sender and filter, automatic bilge pump, transom deck tread, foam-filled hull, electrical harness kit, and three cleats. The boat is finished in white paint with Formosa graphics, giving it a polished and durable look. Additionally, an optional underfloor 80L auxiliary tank for fuel or water is available for boats 635 and over.
Formosa boats are well known for their stability, and the Quad4™ Water Ballast system further enhances this feature, particularly in offshore conditions. From March 2023, the Quad4™ Water Ballast system will be included as standard in all new Enclosed Centre Cabin orders.
VIDEOS & REVIEWS
Formosa SRT PRO 635 Enclosed Centre Cab “Battleship”
The Formosa SRT PRO 635 Enclosed Centre Cab is a dynamic fishing platform that provides 360 degree access to the water. The additional protection that comes from the fully enclosed cabin gives you comfort you can enjoy while taking on offshore conditions. Derek Rodway from Good Times Marine reviews this epic fishing platform.
TECHNOLOGY & KEY FEATURES
- Walk-around Aluminium Cabin
- Fixed Hard Top with Full Glass Windscreen
- Sliding Side Ventilation Windows
- Rocket Launcher with 7 Rod Holders
- Cabin Side Pockets
- Cabin – Centre Board
- Cabin Bunks – Carpeted with Footwell Storage
- Aluminium Seat Boxes
- Electric Motor Mount
- Aluminium Rod Holders
- Tow-Catch™ Trailer capability
- Single Access Active Transom
- SeaStar Hydraulic Steering & Outboard Hose
- Quad4™ Water Ballast
- PRO DECK™ *
*Pro Deck is an upgrade option on models 4.95m – 5.95m. It comes standard on 6.35m and larger models.
Formosa SRT™ Aluminium Plate Hull
With over 20 years of experience and six generations of hull design, the Formosa SRT™ Aluminium Plate Hull sets the standard for performance, strength, and innovation. Combining the best of Formosa’s SEA-ROD and Tomahawk designs, the SRT™ Hull offers unmatched functionality, safety, and value.
Designed for a smooth, dry ride in all conditions, key features include:
- Enhanced hydrodynamic lift and traction with an improved deadrise and large reverse chine
- Lock-cell hull and deck structure for superior strength
- 4mm or 5mm 5083 High Tensile Aluminium plates for toughness
- Active Transom™ with flush folding systems
- Quad4™ Water Ballast (standard on all models from March 2023)
Available with the PRO DECK™ self-draining deck, the Formosa SRT™ is built to handle Australia’s toughest waters.
Standard features:
- Premium Dometic Hydraulic Steering
- Transom Door on every model
- Aluminium rod holders
Upgrade to the PRO DECK™ for Ultimate Performance and Safety
Available as an upgrade on boat sizes 495 to 595, and standard on 635 models and larger (from March 2023), the Formosa PRO DECK™ is engineered for durability and practicality. This Aluminium True Self-Draining Deck allows water to flow off the deck and through the Formosa scupper system, ensuring your deck stays clear and safe in rough conditions or during a simple hose-down at home.
Choose your finish:
- Carpeted Aluminium Floor: Marine-grade carpet provides comfort underfoot while keeping the deck cool.
- Checker Plate Aluminium Floor: A tough, hard-wearing option built for serious adventurers.
- Painted Aluminium Finish: Ready for EVA marine flooring, offering the perfect blend of comfort and customisation.
Whether you’re battling heavy seas or just cleaning up after a great day out, PRO DECK™ gives you confidence on the water.
Active Transom™ – Smart Design for Ultimate Access
The innovative step-down Active Transom™ offers smart storage solutions, easy access to on-board batteries, and remains the benchmark for transom design and water access. Depending on your boat size, the Active Transom™ provides four flexible options: Full Access, Dual Access, Single Access, and Closed Access, catering to a range of boating needs.
Explore the full range of options and download the complete features list for more details.
Why Choose a Formosa for Space and Stability?
Formosa boats are renowned for their spacious decks, extending all the way to the bow. Several key design elements combine to create this generous space, including the perfect balance of deadrise, reverse chine, wide beam, generous freeboard, and ergonomic layout. These features make the boat feel larger than its size, offering a stable platform for all-day enjoyment on the water.
While some boats with sharper deadrises may cut travel time slightly, they often sacrifice comfort and space—especially on long, rough days with multiple passengers. At Formosa, we believe performance isn’t just about speed, but also about comfort at rest. Compare a Formosa to others on the market and you’ll be surprised by the space it offers.
4-Year Structural Hull Warranty
Formosa Marine offers a 4-year warranty on the hull structure to the original purchaser, covering any defects in material or workmanship on all hulls built from 2018 onwards. Additionally, there’s a 1-year warranty for all Formosa Marine factory-fitted parts and accessories, including cabins, launchers, tops, fittings, and optional extras, which may experience movement with use.
For full details and to access the Formosa Warranty Form, please visit our Warranty Page.
Quad4™ Water Ballast System
The innovative Quad4™ Water Ballast system features an industry-leading ‘Off Keel’ counterbalance design, providing unparalleled on-water stability. Unlike traditional keel ballasts, the Quad4™ uses four chambers, combined with a wide beam and reverse chine hull, to minimise hull roll caused by swells or internal passenger movement.
When underway, the longitudinal stringers empty rapidly, allowing the boat to get on plane seamlessly without compromising performance. This advanced system is now standard on all Formosa models from March 2023, offering you a stable and smooth ride, no matter the conditions.
Customise yours today
To explore all the available optional extras and create the perfect fit for your needs, start with our Boat Builder tool.
Formosa SRT ENCLOSED CENTRE CABIN Specs
XL — Extra Long Shaft Transom.
Transom Ladder adds 240mm to hull length.
Duckboards with Transom Ladder add 270mm to hull length.
Dry Hull Weight excludes engine, fuel, etc. It is hull and console/cabin only.
All ABP values are determined in accordance with the ABP standard and AS1799 (2021).
1Trailering height is an estimate only and based on a standard Tow-Catch trailer with keel roller height of 450mm.
2Trailering length excludes engine.
*Deck to gunwhale. (Measured midship, dependent on deck and covering).
Please refer to ABP plate attached before operating. The above information is a guide only. Pictures may include Optional Extras. Please verify details with your dealer before purchase.
| Description | 635 | 675 |
| Length Overall (excluding engine) | 6.44m | 6.85m |
| Beam Overall | 2.49m | 2.49m |
| Beam (chine-to-chine) | 2.12m | 2.12m |
| *Internal Freeboard | 770mm | 770mm |
| Internal Beam (m) | 1.96m | 1.96m |
| Casting Deck Height | 200mm | 200mm |
| ¹Trailering Height (overall) | 3.3m | 3.3m |
| ¹Trailering Height (top folded) | N/A | N/A |
| ²Trailering Length | 7.4m | 8.3m |
| Bottom Sheets (5083) | 5mm | 5mm |
| Side Sheets | 4mm (5083) | 4mm (5083) |
| Deadrise | 19° | 19° |
| Dry Hull Weight | 1128 kg | 1212 kg |
| Max HP | 225 HP | 250 HP |
| Fuel Capacity | 220 L (80L Aux upgrade) | 220 L (80L Aux upgrade) |
| Transom Leg Length | XL | XL |
| Max Engine Weight | 275 kg | 275 kg |
| Max Load Capacity | 973 kg | 1003 kg |
| Max Passengers | 7 | 7 |
POPULAR OPTIONAL EXTRAS
Bait Board and Bait Tank with Window (incl 4 rod holders)
Transom Casting Cage and Platform (single or twin) (565 & over)
Folding Rear Lounge (NA with Full Access Active Transom)
