Upgrade your vessel's deck access with the Lewmar Size 44 Ocean Series Hatch Flange Base, engineered for rugged marine environments where reliability meets seamless functionality. This hatch stands out in the Ocean lineup for its robust construction, delivering a watertight seal that holds up against pounding waves and relentless UV exposure. Boat owners trust it for cabins, cockpits, and forward areas, balancing strength with a sleek profile that enhances onboard aesthetics.

Standout Features for Marine Performance

• Precision fit on flat surfaces with up to ±1mm tolerance, ensuring a flush mount without gaps or leaks.
• Smoke grey acrylic glazing offers optimal UV resistance and a subtle tint that reduces glare while maintaining clear visibility.
• 1-inch flange base provides ample overlap for secure bedding and superior load distribution.
• Lightweight at just 11 pounds, making handling and installation straightforward even in tight spaces.
• Thick 1/2-inch acrylic window withstands impacts and flex without cracking, ideal for offshore passages.

Precise Dimensions for Perfect Fit

Measure twice for a flawless install—these specs eliminate guesswork. The square design suits symmetrical deck cutouts, with generous radii for smooth edges.

Effortless Installation Tips

Securing this hatch starts with a clean, flat deck surface—any imperfections beyond 1mm could compromise the seal. Use M6 or 1/4-inch fasteners at the hinge for pivot strength, and 5mm countersunk No.10 UNC or 2 BA screws for the lower frame to keep everything low-profile. Bed with a marine sealant like polyurethane for longevity. Pro tip: Dry-fit first and check hinge alignment to avoid binding. Most installs take under an hour for experienced hands, transforming access points into secure portals.

Built for the Long Haul

The Ocean Series shines in harsh conditions, from coastal cruising to bluewater adventures. Its anodized aluminum frame resists corrosion, while the quick-action stays allow one-handed operation. Regular care involves wiping the acrylic with mild soap—avoid abrasives to preserve clarity. Sailors rave about its ventilation prowess, pulling fresh air belowdecks without drafts. Compared to standard hatches, this Size 44 delivers unmatched ventilation area relative to footprint, keeping cabins cool and dry.