Category Archives: Catamarans

Building the New Factory

In order to be able to build three or four of the 10.85M aluminum catamarans at the same time we are constructing a new 440 square meter shed. The shed was started 3 weeks ago with the earthworks and at the end of today has concrete laid, the support beams up and roof trusses installed. aluminum boat builder

Roofing will be installed next week just as the aluminum for building three 10.85M catamarans arrives.

aluminum catamaran builder

If you are checking the market for a quality aluminum Ferry or Dive catamaran please contact us. Our pricing is very competitive!

aluminum catamaran builder

Power Catamarans, Aluminum, 10.85M length, outboard engines, new project


48 Pax Ferry

Latest new build project is a confirmed order for three 10.85M aluminum power catamarans. There are three different versions to be built; Ferry, Dive boat and Excursion/Tour vessel.

The boats will be built to handle twin Yamaha outboards up to 350 horsepower and are to be designed for offshore use. Shown  are the clients’ desired lay-outs.

The design is by Naval Architects Australia and will be completed within a few weeks. Boats will be constructed using CNC kitsets to be cut by a Singapore company. Shipping from Singapore by container normally takes less than one week so we will be able to get this order started quickly.

These power catamarans can be equipped with inboard diesels if required.

Basic Specification for the three boats:

  • Length O/A:       10.850 meters.
  • Length Lwl:        8.88 meters.
  • Beam:                   4.80 or 4.50 meters.
  • Displacement:   4.0 tons (Lightship, approximate).
  • Draft, T:             0.30 meters.
  • V max:              40 knots [TBC].
  • V cruise:           28 knots [TBC].
  • Marine grade [5083 H116 Mill Finish DNV Cert] aluminum hull, deck and superstructure from CNC kitset. Plate thickness to be 6mm hull bottom and transom, 5mm hull sides/deck and 4mm superstructure. Non-skid for main deck to be checker-plate.

    Dive boat

    Configured as Dive Boat

  • Non-skid mat to foredeck.
  • Transom to suit outboard horsepower up to 350HP.
  • Interior headlining and cabin sides Formica finish.
  • Marine grade waterproof aluminum windows, 2 x side sliding opening, remainder fixed.
  • Waterproof access doors, one each at port and starboard side, one aft (2 sides half doors in the Excursion Cat).
  • Bow storage area with access doors under and deck hatches, one each at port and starboard side.
  • Self-draining floor through side and aft auto closing scuppers.
  • Stainless steel guardrail to foredeck.
  • Stainless steel handrails at cabin rear sides.
  • 6 x 10” aluminum cleats.
  • Stainless steel bollard on foredeck.
  • Heavy duty rub rail, full length each side.
  •  2 x 250 HP F250GETX Yamaha 4-stroke outboards (Or 2 x 300/350HP for additional cost).
  • Yamaha controls.
  • Hydraulic steering.
  • Cushioned seating for 30 pax and 1 crew in Ferry Cat, 24 pax and 1 crew in Dive Cat, 36 pax and 1 crew in the Excursion Cat, storage under, per Contractor design (seats with dive tank holders in the Dive Cat).
  • Helm seat with bolster.
  • Two full size toilets aft, 2 x Jabsco electric [12VDC] head (one bow in-the-hull toilet only in the Excursion Cat).
  • Anchor windlass 12VDC.
  • Jabsco fresh water pump, cold water.


    Open Tour or Excursion Boat

  • Manual pump for black water.
  • 4 x 2000 gph bilge pumps.
  • Heavy duty windscreen wiper.
  • Electrical panel 12VDC, 16 breaker and wiring, dual 12V charging sockets.
  • Battery 3 x switch panel, service, engine, parallel.
  • Batteries engine start x 2.
  • Navigation lights LED, USCG standard.
  • Interior lighting LED x 16 above the pax seating (4 only in the Excursion Cat), 2 above wheelhouse console, 1 in each forward storage area, 2 in every toilet.
  • Horn 12VDC.
  • Water proof LED lighting x 2 outside at rear of cabin.
  • Radar/GPS/Plotter/Echo Sounder installation – Owner supply.
  • Fuel 2 x 400 litres [211 gals].
  • Freshwater 320 litres [84 gals].
  • Black water 110 litres [30 gals].
  • Delta ‘fastset’ anchor, 20M chain [10mm], 30M rope [14mm].

Standard USCG safety equipment to include 3 x 1.5kg fire extinguishers, 4 x life rings, 33 x standard life jackets (12 additional for the Excursion Cat).

Coastal Cat 36

This boat was manufactured using epoxy/foam sandwich for hull, decks, superstructure and main bulkheads. Internal partitions and furniture were manufactured using epoxy/pvc honeycomb.
36' power catamaran
This construction method gives a lightship displacement of 6.5 tons compared to a standard GRP laminate schedule which is estimated at around 9 tons. The 36′ power catamaran has been configured for weekend family use as required by the client.

Large open plan saloon with push-out forward centre window [gas struts] and sliding side windows. A full headroom toilet/vanity is accessible from the cockpit.

Master cabin with ensuite toilet/shower to starboard. Two guest or childrens cabins with shower/vanity to port.

The quality fairing of the hulls hull and superior epoxy paint finish can be clearly seen in this picture.

Coastal Cat 36

Clean lines and superb exterior finish

The Flybridge has full cover and seating or sun loungers for up to 10 people. The helm station is on the flybridge for this particular model. The boat was customized from a design by Bruce Roberts.

Coastal Cat 36 also features steps from the cockpit to the flybridge just one of the many changes made to the original design. The cabin length was also extended, bow shape altered and ‘box-like’ cabin lines softened and rounded.

The changes demanded by this client were many in number but from his comments below in a testimonial for our Managing Director it is obvious he was very happy with the final outcome.

I have had the pleasure to know and be associated with Geoff Reid during the past 3 years. Our relationship is borne out of Geoff being involved with me on weekends to provide technical direction, design, and construct a custom Power Catamaran boat.


Steps to the flybridge, just one of many design changes.

On the matter of Geoff Reid’s business/marine credentials, having owned several boats, and with my history of being involved with boating for over 30 years, as it pertains to Geoff Reid’s capabilities in boat-building, I consider him to be at World Class level. His technical skills, hands-on approach, tireless commitment to get things done, and his firm insistence on everything being of the best quality, has resulted in my vessel being much more than I had ever expected.

With respect to personal integrity, honesty, commitment, and “hard-work” ethic, the process of construction of a custom boat is a true test of a person’s character. There is a constant list of controversial decisions, and actions that can only be resolved through mutual compromise as there is no “right way” that is defined. Geoff has held firm to his high standards in dealing with me, and yet has been totally honest, open, and respectful as we worked through differences of opinion.

The best way to explain his character and approach to whatever he does, is to say that, at all times as he has been involved with my boat project, he has acted with the passion and care as though it was his own boat, yet with full respect for the fact that it is my boat.

Geoff has gone far beyond that which he had to, in order to ensure that the final result would not only be beyond my expectation, but also to ensure that anything he is associated with, is of the utmost quality!Coastal Cat 36