Marine-Grade Aluminum Vessels Built for Canadian Waters.

EMBARK WITH EAST ARC MARINE

WELDED ALUMINUM PLATE BOATS IN EASTERN CANADA

• INNOVATIVE HULL SHAPES

  Our 3D vessel blueprints are meticulously developed by professionals using advanced naval architecture software. Digital renderings allow each hull shape to be built from scratch for optimal structural accuracy, and to minimize excessive ‘punt’ material waste. Once the design geometry is validated, we prepare individual plate templates for repeatable Computer Numerical Controlled (CNC) cutting.

  A smooth ride depends on a boat’s re-entry to water. Our hull shapes combine variable deadrise angles with inverted forward chines to travel comfortably in choppy conditions and remain even keel at rest. In calm water, a flatter deadrise facilitates efficient planing and keeps transitions smooth. Each hull innovation is intended to handle the varying conditions mariners face on the water.

• BOAT PLANS DESIGNED BY QUALIFIED ENGINEERS

  Aluminum is lightweight, corrosion resistant, and ideal for marine use. With that being said, aluminum plate boats require thoughtful design to withstand the heavy pressures imposed on the hull. Without precise engineering, repeated vibrations can flex and crack an aluminum vessel.

  Our professionally developed boat plans are engineered to effectively manage operational forces through stress-relieving shapes, defined load pathways, and seamless plate transitions, which ultimately protect your boat’s long-term structural integrity. 

  CNC plate cutting supports cost-efficient production, while guaranteeing that every East Arc Marine build precisely matches the specifications designated by our engineers.

• FISHING BOAT DESIGNS TAILORED TO ORDER

  Small aluminum boats require careful design to operate efficiently. Recognizing that aluminum vessels are lightweight also means that making even minor changes to the weight distribution or hull shape can significantly affect on-water performance, if the design is not properly adjusted.

  An incorrect hull design can create a range of problems for boaters. If the chine sits too deep in the water, planing efficiency declines and operating costs increase. If a hull shape is too full, the chine rides out of the water, reducing vessel stability and handling control. These are common pitfalls of small aluminum boats when the design is inefficient.

  East Arc Marine does not cut corners when realizing custom boat configurations. With 3D digital modelling, we can fine-tune each standard design in a cost-effective way. Whether you want to modify an existing hull shape or swap cabin layouts, we will handcraft your boat to meet those specifications without compromising on performance.

• SAIL BEYOND THE STANDARDS

  Our boat designs meet internationally-recognized marine construction codes and apply additional naval engineering principles where required. In particular, we pay close attention to stress-relieving cutouts, smooth plate transitions, and effective load-bearing structure.

  We do not simply design to meet minimum requirements. By going beyond, we design for the sailor expecting durability, structural integrity, and predictable performance while working on the water.

• SOLID FRAME CONSTRUCTION

  Floating frames do not exist in East Arc Marine vessels. Our hull frames are constructed using a full-depth solid plate design to maximize strength and safety. Boat frames are professionally welded to the bottom plate, creating a solid structure that fully integrates the hull with internal support. We keep costs affordable through efficient CNC cutting, not by reducing quality.

• CONTOURED HULL STIFFENERS

  Longitudinal stiffeners support the hull under stress and enhance the structural integrity of a boat. Our stiffeners are strategically developed to match each hull’s exact contour and are CNC-cut from aluminum plate for ultimate strength. We carefully stitch-weld each stiffener perpendicular to the bottom plate to reduce the risk of the stiffener “tripping”, or buckling, under load. 

  During assembly, stiffeners are fully welded to each frame section, using an intermittent technique to prevent burn through and heat-induced distortion. Meanwhile, the frames incorporate stress-relieving contours to minimize risk of structural fatigue. By incorporating CNC-cutting into our process, we can explore complex shapes at a reduced cost, and achieve structural efficiency each time.

• BUILT-IN CHINES

  The strongest commercial boats are built with integrated chines and that’s how we design ours too. The built-in chine is positioned between the side and bottom plates of the aluminum hull and fully welded inside and out to create a sealed, structural connection. This way, we can completely eliminate the risk of crevice corrosion at the chine.

  To compare, some builders may choose to join the bottom and side plates directly and then cap the seam with an extruded angle section. However, if this capped section ever leaks, salt and moisture can accumulate inside, creating oxygen-deficient areas that only accelerate corrosion. Even drainage holes built into capped chines can be inefficient because they still let saltwater in. 

  Hidden salt buildup is problematic for galvanic corrosion, even with aluminum. Since we build boats for East Coasters, we choose to eliminate this issue entirely with integrated chines. CNC cutting allows us to fabricate built-in chines precisely without extra cost. To reduce running costs and increase efficiency, we also avoid reverse-angled chines which can increase drag. Above all, our designs are engineered for maximum performance on the water.

• WELDING STRONG CONNECTIONS

  Lap joint welding is not a good practice for aluminum, so we don’t use it anywhere at East Arc Marine. Instead, we ensure strong structural connections through clean welds and precisely cut aluminum frame halves and brackets.


  To further reduce human error, our weld patterns are deliberately standardized to each design. Weld lines are etched directly onto our aluminum plates as part of the CNC process, which ultimately supports the accurate fabrication of each boat we make.

• CNC-CUT WITH PURPOSE

  One hallmark of CNC cutting is its unmatched accuracy, which also means less material waste. All of our aluminum plate boat components are CNC cut to specification from nested sheets that optimize sheet aluminum usage. The result is that each part is always cut exactly as designed.

  CNC routing allows innovative component shapes to be cut easily without additional expense, such as our signature stress relieved stiffener cutout. When both complex and simple shapes cost the same to produce, we can incorporate more fine-tuned engineering principles into our designs. Cost-efficient for us. Inventive for you. Better for the environment. Everybody wins.

• CURVED-EDGE BRACKETS

  When building with aluminum, it is crucial to consider the risk of material fatigue. To minimize stress concentration, particularly at stiffener transitions, we only use curved-edge brackets.



  Curved transition points facilitate smooth load distribution with level pathways that support structural longevity and reduce cracking risk in high-load areas. The use of this style of bracket is rare and superior, available at no extra cost with CNC-routing.

• MARINE-GRADE ALUMINIUM

  Our watercraft components are cut from certified marine-grade aluminum plate, which offers superior corrosion resistance, strength and excellent durability in saltwater environments.

• THE END RESULT

  East Arc Marine uses cutting-edge rendering technology in the design phase to resolve structural or performance obstacles in digital 3D. In doing so, we can quickly produce properly engineered boats, including custom fishing boats and other bespoke models.

  Our aluminum plate boats are custom built for long-term performance with designs that reduce residual stresses and distortions. The end result is always a capable vessel that handles properly on the water, reflects thoughtful engineering and is built to last.