Altus Escape Hatch Satin Trapezium — Sleek, Low-Profile Deck Hatch for Boats

Designed by Maxwell Marine for serious ocean use, the Altus Escape Hatch Satin Trapezium blends a razor-thin 23 mm profile with rock-solid safety and flexible ventilation. Its satin sheen anodised aluminium frame stands up to salt spray, humidity, and years of service, while keeping your deck clean, unobtrusive, and ready for action when it matters most.

Key features

• Ultra-low profile at 23 mm high with a 14 mm recess for a flush-to-deck appearance and enhanced water-tight integrity.
• Satin sheen anodised aluminium frame delivers corrosion resistance and enduring performance in harsh marine environments.
• Dual-side operation opens from inside or outside, ensuring safe access in tight spaces or during emergencies.
• 90° hold-open allows secure ventilation or hands-free maintenance by locking the lid at any angle up to 90°.
• Sealing and ventilation options choose wholly water-tight, locked, or ventilating modes to match deck conditions at sea or at anchor.
• Precise, adjustable mechanism makes lid opening smooth and predictable while reducing snag risks with lines or gear.
• CE classified, ocean-ready built for real-world sailing environments and deck-mounted reliability.

Use cases and real-world benefits

Whether you’re provisioning a day boat, trawler, sportfisher, or coastal cruiser, this hatch delivers a dependable escape route and adaptable ventilation without compromising deck space. The slim footprint frees area for movement, rigging, and non-slip navigation, while the flush-to-deck installation keeps the surface clean for chores, anchoring, and quick man-overboard readiness.

Why this hatch stands out

What sets the Altus Satin Trapezium apart is its combination of form and function. The 23 mm profile minimizes visual bulk on crowded decks, yet the hatch remains robust enough to serve as a dedicated escape route in emergencies. The ability to open from either side, plus multiple modes for sealing and ventilation, means you’re prepared for everything from hot afternoon air to rough offshore conditions.

Ideal for whom

Perfect for sailors who value space efficiency and seaworthy reliability, the Altus Escape Hatch suits owners who migrate between protected bays and open-water, or who simply demand a practical, low-maintenance hatch that won’t hinder daily operations.

Installation, care, and tips

• Ensure a clean, level deck surface for flush installation and optimal water-tight performance.
• Regularly inspect seals and latching hardware; keep the mechanism lubricated to maintain smooth operation.
• When conditions demand airflow, set the ventilating mode and use the 90° hold-open to maximize breeze without compromising deck safety.

Durable by design, trusted by sailors

From the workshop to the water, Maxwell Marine’s Altus range is built with practical sailing in mind. The Satin Trapezium escape hatch isn’t just a safety feature—it’s a durable, everyday deck component that improves comfort, safety, and usability on a wide range of vessels. If you’re upgrading hardware or equipping a new build, this hatch represents a balanced blend of low-profile aesthetics, rugged construction, and real-world practicality in the Hatches category.