Lewmar Size 44 Low Profile Hatch Flange Base
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Lewmar Size 44 Low Profile Hatch Flange Base Product Description
Discover the Sleek Performance of the Lewmar Size 44 Low Profile Hatch
Upgrade your vessel's deck with the Lewmar Size 44 Low Profile Hatch Flange Base, engineered for marine enthusiasts who demand reliability without compromising on style. This hatch stands out in the world of boating hardware for its minimalist 1-inch height, blending seamlessly into cabin tops, cockpits, or foredecks. Ideal for sailboats, yachts, and powerboats, it delivers exceptional ventilation while maintaining a watertight seal against harsh saltwater conditions.
Crafted with marine-grade materials, the smoke grey acrylic window resists yellowing from prolonged UV exposure, ensuring long-term clarity for natural light below deck. At just 10.6 pounds, it's lightweight enough for easy handling during installation or replacement, yet robust for everyday use in demanding offshore adventures.
Why Choose This Low Profile Hatch for Your Boat?
- Streamlined Aesthetics: The ultra-low 1-inch profile minimizes wind resistance and creates a flush, modern look that enhances your boat's lines.
- Superior Ventilation: Self-supporting design holds the hatch open securely at various angles, promoting airflow without additional props.
- Durable Construction: 5/16-inch thick acrylic provides impact resistance, while the 9/16-inch lower frame offers a stable mounting base on flat surfaces.
- Easy Maintenance: Quick-release mechanisms and corrosion-resistant hardware simplify cleaning and inspections, keeping your setup pristine season after season.
- Versatile Applications: Perfect as a V-berth opener, galley vent, or head access point, it fits a range of mid-sized cruisers where space and safety matter.
Boaters often praise its balance of form and function—imagine crisp ocean breezes circulating through your cabin without the bulk of traditional hatches cluttering the horizon.
Detailed Specifications
Precise measurements ensure a perfect fit for your deck cut-out. Here's a breakdown of the core specs:
| Support System | Lower Frame (in) | Acrylic Colour | Hatch Weight (lb) | Acrylic Window Thickness (in) |
|---|---|---|---|---|
| Self Supporting | 9/16 | Smoke Grey | 10.6 | 5/16 |
| Length X (in) | Width Y (in) | Height Z (in) | Radii R (in) | Cut-Out Length X1 (in) | Cut-Out Width Y1 (in) | Cut-Out Radii R1 (in) |
|---|---|---|---|---|---|---|
| 20 3/16 | 20 3/16 | 1 | 2 7/8 | 17 3/8 | 17 3/8 | 1 11/16 |
Professional Installation Tips
Mounting this hatch requires a flat deck surface with no more than +/- 1mm tolerance for optimal sealing. Follow these steps for a secure, leak-free install:
- Prepare the Surface: Clean and dry the deck thoroughly. Trace the 17 3/8-inch square cut-out with 1 11/16-inch radii using a template.
- Secure the Hinge: Use M6 (1/4-inch) fasteners at the hinge points for pivot strength.
- Fasten the Frame: Attach the lower frame with 5mm CSK screws (No.10 UNC or 2 BA) around the perimeter, torquing evenly to avoid warping.
- Seal Properly: Apply marine sealant under the frame and around fasteners. Test for operation before full cure.
- Final Check: Cycle the hatch 10-15 times to confirm smooth action and no binding.
Pro tip: For curved decks, consider Lewmar's Ocean or Atlantic series instead. Always wear gloves to protect the acrylic during handling.
Care and Longevity Tips
To maximize lifespan, rinse with fresh water after every sail to remove salt buildup. Polish the smoke grey acrylic annually with a non-abrasive marine cleaner to restore shine. Avoid harsh chemicals that could etch the surface. In storage, keep the hatch slightly ajar to prevent seal compression.
Frequently Asked Questions
What types of boats is the Lewmar Size 44 Low Profile Hatch best suited for?
This hatch excels on mid-sized sailboats, catamarans, and express cruisers up to 40 feet, where deck space is premium and a low silhouette is desired for racing or touring.
Does this hatch require additional supports for ventilation?
No, its self-supporting system locks securely at multiple angles, eliminating the need for struts or gas springs in most applications.
How do I measure my deck for a proper cut-out?
Use the specs: 17 3/8 inches square with 1 11/16-inch corner radii. Double-check against your existing opening, allowing minimal tolerance for sealant.
Is the smoke grey acrylic UV resistant?
Yes, it's formulated to withstand intense sun exposure, preventing fading or brittleness common in lesser materials.
Can this hatch be installed on a non-flat surface?
It requires a flat surface within +/- 1mm tolerance. For slight curves, bedding compound can help, but consult a professional for best results.
How heavy is the hatch, and is it easy to handle solo?
Weighing only 10.6 pounds, it's manageable for one person during installation, thanks to its compact design and balanced weight distribution.
What fasteners should I use for the lower frame?
Opt for 5mm CSK screws in No.10 UNC or 2 BA sizes, stainless steel for corrosion resistance, applied evenly around the frame.
| Support System | Lower Frame (in) | Acrylic Colour | Hatch Weight (lb) | Acrylic Window Thickness (in) |
| Self Supporting | 9/16 | Smoke Grey | 10.6 | 5/16 |
Dimensions
| Length X (in) | Width Y (in) | Height Z (in) | Radii R (in) | Cut-Out Length X1 (in) | Cut-Out Width Y1 (in) | Cut-Out Radii R1 (in) |
| 20 3/16 | 20 3/16 | 1 | 2 7/8 | 17 3/8 | 17 3/8 | 1 11/16 |
Mounting Instructions
Fit to a flat surface with a maximum tolerance of +/- 1mm. Fastening size at hinge section use M6 (1/4"). Fastening size for lower frame use 5mm CSK screw No.10 UNC 2 BA.
"The sleekly designed Low Profile Hatch is ideal for use on a powerboat. Smaller ventilation hatches are a better fit for sailboats, while the larger sizes can be used as foredeck hatches on smaller to mid size yachts. Lewmar hatches feature Lewmar's unique sealing system allowing easy acrylic replacement. All sizes suitable for CE Area 2 (Deck, Coachroof, Cockpit and Transom)."
Frequently Asked Questions (FAQ) About Lewmar Size 44 Low Profile Hatch Flange Base
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Who is the Lewmar?
How to describe Lewmar Size 44 Low Profile Hatch Flange Base?
What is the highlights of Lewmar Size 44 Low Profile Hatch Flange Base?
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Lewmar Size 44 Low Profile Hatch Flange Base Technical Specifications
| Type: | |
|---|---|
| Vendor: |
Lewmar |
| Weight: |
25.0 lb |
Lewmar Size 44 Low Profile Hatch Flange Base User Reviews
Lewmar Size 44 Low Profile Hatch Flange Base Shipping & Return
| Shipping Weight: |
25.0 lb |
|---|---|
| Box Sizes: |
1.00 (h) x 1.00 (w) x 1.00 (l) |
| Cubic Feet: |
1.0 |
| Returnable: |
Yes |
| USPS First Class: |
Yes |
| P65: |
Yes |
For detailed shipping policy please check our Shipping Policy and you can find our Return and Refund Policy here.