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    • Triangle Dock Box with Electrical Insert 54
    • Triangle Dock Box with Electrical Insert 54
    • Triangle Dock Box with Electrical Insert 54
    • Triangle Dock Box with Electrical Insert 54
    • Triangle Dock Box with Electrical Insert 54
    • Triangle Dock Box with Electrical Insert 54
    • Triangle Dock Box with Electrical Insert 54

    Triangle Dock Box with Electrical Insert 54" x 31" x 29"

    Type: Dock Boxes
    Regular Price $784.80
    Item # DB-CM-TRI-E-S
    • Box style: Classic triangular dock box with electrical insert
    • Compatible with Eaton Newport Harbor Mate
    • 54"L x 31"D x 29"H
    • Fiberglass construction with UV gel coated exterior
    • Gas shock is included for easy opening
    • Newport Harbor Mate NOT included, must purchase separately

    In Stock! Ready to ship

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    Description
    Fiberglass Dock Boxes
    Dock boxes provide a convenient place to store everyday items that you use on your boat or dock. Fishing gear, ropes, and life jackets can now be tucked away in your dock box, keeping your garage less cluttered. Dock boxes are also a perfect adddition to backyard decks, pool decks, and patios. They are great for storing your yard tools, pool toys, and accessories.

    All of our standard dock boxes are constructed from heavy duty white fiberglass with a minimum 3/16" wall thickness. The lids are constructed with a strong, sandwich-core design for unsurpassed strength. The UV gel coated exterior provides long-lasting beauty and protection. Interior features a white gel coat finish with black webbing. Stainless steel hinges on lid and are mounted with stainless steel lock nuts and machine screws (not riveted).

    Product Highlights:
    • Box style: Classic triangular dock box with electrical insert
    • Compatible with Eaton Newport Harbor Mate
    • 54"L x 31"D x 29"H
    • Fiberglass construction with UV gel coated exterior
    • Gas shock is included for easy opening

    The triangle box is engineered to support the installation of one of these pedestals:
    • Newport Harbor Mate Mini Power Center, 30A/20A (Item # PP-E-N1)
    • Newport Harbor Mate Mini Power Center, 50A/50A/20A (Item # PP-E-N4)
    • Newport Harbor Mate Mini Power Center, 30A/30A/20A (Item # PP-E-N2)
    • Newport Harbor Mate Mini Power Center, 50A/30A/20A (Item # PP-E-N3)
    * All dimensions are approximate
    Additional Info
    Item #: DB-CM-TRI-E-S
    Outside Dimensions: 54"L x 31"D x 29"H *
    Inside Dimensions: 48"L x 26"D x 25"H * (along back edge)
    Material: Fiberglass
    Exterior Finish: Smooth UV gel coated exterior
    Interior Finish: Off-white natural textured fiberglass
    Gas Shocks Included: Yes (single shock)
    Lockable Hasp Included: Yes
    Weight: 56 lbs. *

    * All dimensions and weights are approximate

    Why Choose Dockbuilders?

    With nearly 30 years of experience, Dock Builders Supply delivers dependable marine construction materials for projects of all sizes. Our products are selected with precision for durability, performance, and real-world dock applications.

    Backed by a knowledgeable team and supported with detailed estimates and drawings, we help you plan with clarity and build with confidence — from residential docks to large-scale marina installations.

    How It Works

    • Plan & Design

      Share your dock goals, and we’ll create a custom layout and materials list.

    • Select Components

      Choose durable, marine-grade parts tailored to your design.

    • Ship & Build

      We ship your supplies with secure, efficient delivery.