Lewmar Low Profile Hatches are corrosion-resistant deck hatches with a sleek, low-rise anodized aluminum frame and grey acrylic lens, sized 0 through 60 for everything from small ventilation openings to foredeck hatches on small and mid-size yachts. They pair soft modern styling with practical features like outside handles, friction levers, and lids that open up to 180 degrees, making them one of the best mid-range hatch choices on the market.
Lewmar Low Profile Hatches at a glance
| Feature | Specification |
|---|---|
| Frame | Anodized aluminum, curved upper-frame profile for strength and styling |
| Lens | Grey acrylic, 8 mm (5/16 in) thick |
| Opening angle | Up to 180 degrees (round hatches up to 170 degrees) |
| Hold-open | Friction levers hold the lid at any position up to 95 degrees |
| Handles | Outside handles allow opening from the deck when unlocked |
| Configurations | Rectangular, Round, and D-Hatch; Size 0 through Size 60 |
What is a Lewmar Low Profile Hatch?
The Lewmar Low Profile Hatch is a deck hatch built around an anodized aluminum frame and a grey acrylic window. Its low, curved profile gives it a modern look while adding structural strength, and the anodized frame resists corrosion in the marine environment. Smaller sizes work as ventilation hatches in almost any deck location, while larger sizes serve as foredeck hatches on small to mid-size yachts.
How does the hatch open and hold position?
The lid opens up to 180 degrees on rectangular and D-Hatch models, and up to 170 degrees on round hatches. Friction levers let you hold the lid open at any position up to 95 degrees, so it stays put in a breeze without a separate prop. When the hatch is left unlocked, the outside handles let you open it from the deck as well as from below.
How do I size a Lewmar Low Profile Hatch?
Lewmar sizes these hatches by a size number tied to fixed overall and cut-out dimensions. Always measure and cut to the published cut-out dimensions for your chosen size, and confirm the flange footprint clears surrounding deck hardware. A few reference points:
| Size | Overall (X x Y) | Cut-out (X1 x Y1) | Weight |
|---|---|---|---|
| 0 | 281 x 281 mm (11 1/16 x 11 1/16 in) | 211 x 211 mm (8 5/16 x 8 5/16 in) | 1.6 kg (3.5 lb) |
| 3 | 246 x 301 mm (9 11/16 x 11 7/8 in) | 176 x 231 mm (6 15/16 x 9 1/8 in) | 1.6 kg (3.5 lb) |
| 10 | 330 x 330 mm (13 x 13 in) | 260 x 260 mm (10 1/4 x 10 1/4 in) | 2.2 kg (4.9 lb) |
All sizes share a 25 mm (1 in) frame flange height and an 8 mm (5/16 in) acrylic window. Larger sizes such as 40, 44, 54 and 60 follow the same pattern with proportionally larger cut-outs.
Which configuration should I choose?
Choose a rectangular hatch for the widest opening (up to 180 degrees) and maximum ventilation on decks and foredecks. Choose a round hatch where the deck layout or styling calls for it, keeping in mind the slightly reduced 170-degree opening. D-Hatch models suit angled or curved deck areas. For larger foredeck hatches, versions with a stay are available to hold the lid open securely.
Frequently asked questions
How far do Lewmar Low Profile Hatches open?
Rectangular and D-Hatch models open up to 180 degrees; round hatches open up to 170 degrees. Friction levers hold the lid at any position up to 95 degrees.
What material is the frame made from?
The frame is anodized aluminum, which provides corrosion resistance, and the curved upper-frame profile adds strength and a modern look.
Can I open the hatch from the deck?
Yes. Outside handles allow you to open the hatch from the deck as long as it is not locked.
What size cut-out do I need?
Cut-out dimensions are fixed per size — for example, Size 0 needs a 211 x 211 mm (8 5/16 in) opening and Size 10 needs 260 x 260 mm (10 1/4 in). Match the published cut-out for your chosen size before cutting the deck.
Are round and D-Hatch versions available?
Yes. Lewmar Low Profile Hatches are offered in rectangular, round, and D-Hatch configurations across sizes 0 through 60.
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