Lewmar Size 40 Medium-Profile Deck Hatch
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Lewmar Size 40 Medium-Profile Deck Hatch

  • Cutout: 16-9/16" x 16-9/16", 1-11/16" Corner Radius
  • Materials: Smoke Gray Acrylic Lens with Anodized Aluminum Frame
  • Self-Supporting - Friction Lever Hinges Hold Hatch Open up to 95°
  • Item #: 
    Model #: 
    Shipping Weight: 
    14.95 Lbs.
    List Price: 
    Our Price:
    Status:      In Stock



    Lewmar Size 40 Medium-Profile Deck Hatch


    • Hatch with thicker acrylic and deeper frame sections (compared to Low Profile hatch) for greater strength and durability
    • Ideal as foredeck hatch on larger offshore yachts
    • Self-supporting – friction levers hold lid open in any position up to 95°
    • Lewmar's unique sealing system allows easy replacement of acrylic lens
    • Corrosion-resistant clear anodized aluminum frame with flange bases, inset hinges and snag-resistant rounded edges
    • Curved upper frame section for strength and modern styling
    • Outside handles allow hatch to be opened from on deck if not locked
    • Full range of spare parts available
    • 3-year warranty
    • CE approved for Design Category A / Area 2A


    • Lewmar Model No. 39940020
    • Materials:
      • Lens: 1/2" (12 mm) smoke gray acrylic
      • Frame: Clear anodized aluminum
    • Dimensions:
      • Cutout: 16-9/16" x 16-9/16" with 1-11/16" (43 mm) corner radius
      • Overall: 19-3/8" x 19-3/8" with 3-1/16" (78 mm) OD radius
      • Deck-to-Lid Height: 1-1/4" (32 mm)

    Note:  Lewmar products are designed for use in recreational marine applications.  Any commercial application is forbidden without the prior approval of Lewmar engineering and management.

    WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to www.p65warnings.ca.gov

    Lewmar Hatch Trim And Screen Kit
    Item #: 900436
  • Fits Lewmar Hatches Size 40
  • Color: White
  • Open Hatch Without Removing Screen
  •  Include


    Model #:
    Davis Instruments Windscoop Ventilating Sail
    Item #: 900736
  • For Hatches Up To 4 Feet Wide
  • Colors Vary
  •  Include

    Model #:
    Caframo 7620 Taku Hatch Fan
    Item #: 900998
  • Motor: 4-Speed Push-Button Controls, Mount: Suction Cups (4), Color: White
  • Power: 12 Volt DC, Draw: 0.2 / 0.5 / 0.95 Amps, Airflow: 100 - 500 CFM
  • Dimensions: 11.5" W x 13.5" H x 13.8" D, Blade: 8"
  •  Include

    Model #:
    Lewmar Size 40 Low-Profile Deck Hatch
    Item #: 900434
  • Cutout: 16-9/16" x 16-9/16", 1-11/16" Corner Radius
  • Materials: Smoke Gray Acrylic Lens with Clear Anodized Aluminum Frame
  • Telescopic Stays Allow Rigid Control of Hatch Opening to Approx. 90°
  •  Include

    Model #:

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