Lewmar Size 60 Ocean Series Hatch Flat Base

Discover the Robust Performance of the Lewmar Size 60 Ocean Series Flat Base Hatch

Engineered for demanding marine environments, the Lewmar Size 60 Ocean Series Flat Base Hatch stands out as a premium choice for yacht owners seeking reliable deck ventilation and natural light. This hatch, designed specifically for flat surface mounting, delivers exceptional strength and weather resistance, making it ideal for ocean-going vessels where durability meets seamless functionality.

Superior Build for Marine Toughness

Crafted with marine-grade materials, this hatch features a robust lower frame and a smoke grey acrylic lid that's built to withstand harsh UV exposure, salt spray, and heavy wave impacts. The 1/2-inch thick acrylic provides crystal-clear visibility while offering impact resistance far superior to standard glass alternatives. At just 17.6 pounds, it balances lightweight handling with unyielding structural integrity, ensuring easy installation without compromising on safety.

What sets this flat base model apart is its precise fit tolerance of +/- 1mm, allowing for flush mounting on decks with minimal preparation. Unlike curved base variants, the flat design simplifies retrofits on modern hulls, while the absence of compatibility with trim kits or roller shades keeps the focus on straightforward, high-performance operation.

Generous Opening for Optimal Ventilation and Light

Measuring 22 5/8 inches in both length and width, this Size 60 hatch creates a spacious portal for airflow, crucial for maintaining comfortable cabin temperatures during long passages. The square dimensions with 3-inch corner radii ensure a modern aesthetic that complements sleek deck layouts. When open, it allows for self-venting, reducing moisture buildup and enhancing crew comfort below decks.

• Maximum Opening Angle: Up to 90 degrees for full access and superior breeze capture.
• Quick-Action Handle: Effortless one-handed operation, even in rough seas.
• Weather Seals: Dual EPDM gaskets prevent leaks, certified for Category A ocean conditions.
• Hatch Weight: Lightweight at 17.6 lb for hassle-free handling.

Precise Specifications at a Glance

Streamlined Installation Tips for Seamless Integration

Installing the Lewmar Size 60 Flat Base Hatch is straightforward for skilled marine technicians. Begin by verifying your deck's flatness within the +/- 1mm tolerance. Use M6 or 1/4-inch fasteners at the hinge section for secure pivoting, and 5mm CSK screws (No.10 UNC or 2 BA) for the lower frame. The square cut-out of 19 3/4 x 19 3/4 inches with 1 9/16-inch radii ensures a precise template fit—always double-check with a jig for flawless alignment.

Pro Tip: Apply marine sealant around the frame perimeter before tightening to enhance watertight integrity. This hatch's low-profile height of 1 11/16 inches minimizes windage, preserving your vessel's hydrodynamic efficiency.

Maintenance for Long-Lasting Reliability

To keep your Ocean Series hatch performing like new, rinse with fresh water after every voyage to remove salt residues. Lubricate hinges annually with marine grease, and inspect seals for wear—replacements are simple and keep leaks at bay. The smoke grey tint resists yellowing, maintaining that sharp, professional look for years.

Owners report this hatch's gas struts hold up remarkably in extreme conditions, outperforming competitors in independent tests for cycle fatigue and UV stability.

Why Marine Enthusiasts Trust Lewmar Ocean Series

Beyond specs, the Lewmar Size 60 embodies proven engineering from a brand synonymous with innovation since the 1950s. It's not just a hatch—it's a gateway to safer, more enjoyable voyages, flooding cabins with light and air while locking out the elements. Perfect for foredecks, coachroofs, or custom layouts on performance cruisers.