Marine Deck Hatches & Access Ports
Marine Deck Hatches & Access Ports
Watertight Deck Hatches, Inspection Ports, Storage Hatches & Hatch Accessories
Shop marine deck hatches and access ports for dependable below-deck access, ventilation, storage, inspection, and service work. Find Classic, Mid Line, and Top Line hatches, ISO12216-certified hatch options, locking hatches, storage hatches, trim and screen kits, inspection ports, replacement covers, seals, gaskets, and mounting hardware for demanding marine environments.
Match hatch size by the cutout, outside dimensions, corner radius, lid style, hinge direction, gasket condition, deck thickness, and the space available above and below the deck.
Popular Hatch & Access Searches
Choose by Hatch Series, Size, Function, or Replacement Part
Use these links to narrow the collection by the hatch style or service part. Search links are used for smaller product groups so customers land directly on matching products.
Hatch Families
Classic, Mid Line, Top Line, Locking, and Storage Hatch Options
Different hatch series serve different needs. Some prioritize straightforward access, some add stronger sealing or certification, and some include locks, drawers, or storage organization. Choose based on location, expected water exposure, foot traffic, and the access required below deck.
Service Parts
Keep Hatches Sealed, Secure, and Usable
A good hatch is only useful if the seal, latch, hinge, frame, and fasteners are working. Replace cracked seals, loose handles, missing screens, broken trim, brittle hinges, or worn latches before they allow leaks or unsafe access.
Measure the Cutout
Check the cutout size, outside frame dimensions, corner radius, hinge clearance, and the space below the hatch before ordering.
Match the Use
Storage, ventilation, emergency access, tank inspection, and service openings each need the right lid style, lock, seal, and strength.
Protect the Seal
Clean gasket surfaces, inspect seals often, avoid over-tightening, and replace worn gaskets before leaks reach the cabin or bilge.
Fitment Help
Hatch Replacements Are Usually Measured, Not Guessed
Boat model alone is rarely enough for hatch replacement. Measure the existing hatch, note any markings, photograph the frame and lid, and confirm whether you need a direct replacement, a larger cover, or a hatch that can cover old fastener holes.
Related Hardware Categories
Complete the Hatch or Access Installation
Deck Hatch FAQ
Choosing Marine Deck Hatches and Access Ports
How do I choose the right replacement hatch?
Measure the existing cutout, outside frame, corner radius, hinge side, fastener pattern, lid clearance, and deck thickness. Photos and any molded or printed markings can help confirm the correct search.
What does ISO12216 mean on a deck hatch?
ISO12216 refers to an international marine standard used for windows, portlights, hatches, deadlights, and doors. If that rating matters for your application, confirm the exact product specification before ordering.
When should hatch seals or gaskets be replaced?
Replace hatch seals when they are cracked, flattened, swollen, missing, leaking, or no longer holding a consistent seal after cleaning.
Are trim and screen kits universal?
No. Trim and screen kits usually match a specific hatch series and size. Confirm the hatch model, size, and kit compatibility before ordering.
Shop Marine Deck Hatches & Access Ports
Find hatches, access ports, storage hatches, locking hatches, seals, trim kits, screens, and installation hardware for dependable marine access.
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Groco SW-2531 Bronze Spanner Wrench / Deck Plate Key
Groco SW-2531 Bronze Spanner Wrench / Deck Plate KeyA heavy-duty bronze spanner wrench designed to open and close screw-out deck plates and straine...
View full detailsT-H Marine Screw Down Deck Plate – 5-5/8" OD, Black
Reliable Deck Access, Built to LastThe T-H Marine 5-5/8" OD Screw Down Deck Plate gives you secure, watertight access to below-deck storage compart...
View full detailsTempress Access Slam Hatch – White, 13" x 23"
Tempress Access Slam Hatch – White, 13" x 23"A large-format, walk-on-rated deck access hatch built for high-traffic areas where a fast, weather-tig...
View full detailsT-H Marine Screw-Down Deck Plate 8" OD – Black
T-H Marine Screw-Down Deck Plate – 8" OD, BlackA clean, low-profile solution for sealing larger access openings on your boat's deck. This 8" outer ...
View full detailsPerko Deck Plate Key – Black Plastic, Fits 1-1/4" & 1-1/2" Slot-Type Deck Plates
Perko Deck Plate Key – Black Plastic, Fits 1-1/4" & 1-1/2" Slot-Type Deck PlatesA purpose-fit deck plate key designed specifically for Perko 1-...
View full detailsPerko Combination Gas Fill & Integrated Tank Vent – Straight Neck, Chrome Bronze Cap, Black Plastic Body, Deck Plate Key Included
Perko Combination Gas Fill & Integrated Tank Vent – Straight Neck, Chrome Bronze Cap, Black Plastic Body, Deck Plate Key IncludedThe straight-n...
View full detailsBeckson 5" Twist-Out Deck Plate – White
Beckson 5" Twist-Out Deck Plate – WhiteA premium twist-out deck plate designed for clean, watertight access on bulkheads, cockpit walls, and cabin ...
View full detailsBeckson 5" Twist-Out Deck Plate – Black
Beckson 5" Twist-Out Deck Plate – BlackA premium twist-out deck plate designed for clean, watertight access on bulkheads, cockpit walls, and cabin ...
View full detailsPerko Combination Gas Fill & Integrated Tank Vent – Angled Neck, Chrome Bronze Cap, Black Plastic Body
Perko Combination Gas Fill & Integrated Tank Vent – Angled Neck, Chrome Bronze Cap, Black Plastic BodyA premium-finish combination gas fill and...
View full detailsPerko Combination Gas Fill & Integrated Tank Vent – Angled Neck, Chrome Bronze Cap, Black Plastic Body
Perko Combination Gas Fill & Integrated Tank Vent – Angled Neck, Chrome Bronze Cap, Black Plastic BodyThe premium finish version of Perko’s com...
View full detailsSea-Dog Chrome Zinc Gas Deck Fill with Splash Guard & Keyless Cap – 1-1/2" Hose
Sea-Dog Chrome Zinc Gas Deck Fill with Splash Guard & Keyless Cap – 1-1/2" HoseA chrome-plated die-cast zinc gas deck fill designed for easy, t...
View full detailsDavis Snap Tool Multi-Key – Stainless Steel Deck Plate Key & Multi-Tool
Davis Snap Tool Multi-Key – Stainless Steel Deck Plate Key & Multi-ToolA pocket-sized stainless steel multi-tool designed around the deck plate...
View full detailsPerko Combination Gas Fill & Integrated Tank Vent – Angled Neck, Black Plastic, Deck Plate Key Included
Perko Combination Gas Fill & Integrated Tank Vent – Angled Neck, Black Plastic, Deck Plate Key IncludedA two-in-one deck fitting that combines ...
View full detailsPerko Combination Gas Fill & Integrated Tank Vent – Angled Neck, White Plastic, Deck Plate Key Included
Perko Combination Gas Fill & Integrated Tank Vent – Angled Neck, White Plastic, Deck Plate Key IncludedA two-in-one deck fitting that combines ...
View full detailsSea-Dog Cast 316 Stainless Deck Fill Key – 1-3/16" Hole Centers
Sea-Dog Cast 316 Stainless Deck Fill Key – 1-3/16" Hole CentersA precision-fit deck fill key investment cast from 316 stainless steel — the higher-...
View full detailsSeachoice Polycarbonate Deck Plate Key – Black, 3-3/8 in.
Seachoice Polycarbonate Deck Plate Key – Black, 3-3/8 in.A compact, purpose-built key for opening standard twist-lock and pry-up deck plates on fue...
View full detailsSea-Dog Deck Fill Key – Formed 304 Stainless Steel, Cast Cap Fit
Sea-Dog Deck Fill Key – Formed 304 Stainless Steel, Cast Cap FitA dedicated deck fill key formed from 304 stainless steel and designed to fit Sea-D...
View full detailsSeachoice Universal Deck Plate Key & Multi-Tool – Non-Magnetic Stainless Steel, 3-7/8 in.
Seachoice Universal Deck Plate Key & Multi-Tool – Non-Magnetic Stainless Steel, 3-7/8 in.One compact tool that handles the most common deck acc...
View full detailsSea-Dog Universal Deck Fill Key & Multi-Tool – 304 Stainless Steel
Sea-Dog Universal Deck Fill Key & Multi-Tool – 304 Stainless SteelA hardworking multi-tool built around the deck fill key — one of the most-use...
View full details1D0040590CN Uflex AV Series Electrical Hatch Lifters, 18 in Stroke, 12 volts, LKG
Electromechanical products, especially designed for marine use on pleasure boats. They allow full or partial opening and closing of heavy engine ha...
View full details1D0040584HN Uflex AV Series Electrical Hatch Lifters, 24 in Stroke, 12 volts
Electromechanical products, especially designed for marine use on pleasure boats. They allow full or partial opening and closing of heavy engine ha...
View full details1D0040582DN Uflex AV Series Electrical Hatch Lifters, 18 in Stroke, 12 volts
Electromechanical products, especially designed for marine use on pleasure boats. They allow full or partial opening and closing of heavy engine ha...
View full detailsWhale LD4002 Watertight Locker Door, Clear
The Whale LD4002 Watertight Locker Door (Clear) helps keep storage spaces dry while providing practical access when you need it. Designed for marin...
View full detailsWhale LD4000 Watertight Locker Door, Black
The Whale LD4000 Watertight Locker Door (Black) provides secure, easy access to a storage compartment while maintaining a watertight seal. Key Feat...
View full detailsElectric Hatch Lift
Comes with 2' leads and Deutsch plugsSince the hatch lift is based around a ball-screw it is able to push and remain at a constant position. Easy t...
View full detailsElectric Hatch Lift
Comes with 2' leads and Deutsch plugsSince the hatch lift is based around a ball-screw it is able to push and remain at a constant position. Easy t...
View full detailsElectric Hatch Lift
Comes with 2' leads and Deutsch plugsSince the hatch lift is based around a ball-screw it is able to push and remain at a constant position. Easy t...
View full detailsElectric Hatch Lift
Comes with 2' leads and Deutsch plugsSince the hatch lift is based around a ball-screw it is able to push and remain at a constant position. Easy t...
View full detailsHatch Inspection 10 1/4X14 1/4
A flush-mounting molded low-profile inspection hatch designed to provide clean, secure access on marine decks while helping protect the opening wit...
View full detailsInspect Hatch 18-1/2X20-3/16
The Bomar Inspect Hatch in the 18-1/2" x 20-3/16" size provides a flush-mounted, low-profile marine inspection opening with a fully gasketed, non-s...
View full detailsMolded 10X30 Inspection Hatch
Molded 10X30 Inspection Hatch designed for low-profile, flush mounting. This fully gasketed hatch features UV-stabilized resin, a non-skid surface,...
View full detailsMolded 10X20 Inspection Hatch
The Molded 10X20 Inspection Hatch is a flush-mount, low-profile deck hatch designed for secure access with a fully gasketed construction, UV-stabil...
View full detailsHatch 10 X 20 Black
The Hatch 10 X 20 Black is a flush-mount, molded low-profile deck hatch designed for secure, gasketed access. It features UV-stabilized resin and a...
View full detailsSea-Dog 321476 Gas Filled Lift Spring
Sea-Dog 321476 Gas Filled Lift Spring is a marine-grade lift support designed to help raise and hold hatches, deck access ports, or other equipment...
View full detailsSea-Dog 3214741 Gas Filled Lift Spring
Sea-Dog 3214741 Gas Filled Lift Spring is a marine-grade gas spring designed to support hatch and deck plate lids with smooth lift assistance and a...
View full detailsSea-Dog 3214731 Gas Filled Lift Spring
Sea-Dog 3214731 Gas Filled Lift Spring is a gas-powered support designed to help lift and control hatch and deck plate access panels. Key Features ...
View full detailsSea-Dog 3214631 Gas Filled Lift Spring
Sea-Dog 3214631 Gas Filled Lift Spring is a gas-filled lift support designed to help raise and hold marine hatches, deck plates, and other heavy-du...
View full detailsSea-Dog 3215861 Gas Lift Ball Stud-10mm
Sea-Dog 3215861 Gas Lift Ball Stud-10mm is a corrosion-resistant 304 stainless steel ball stud used to mount gas filled lift springs on marine deck...
View full detailsSea-Dog 321424 Gas Filled Lift Spring
Sea-Dog gas filled lift spring (321424) is designed to help support and ease the opening of marine hatches and deck access ports. It features Sea-D...
View full detailsSea-Dog 321422 Gas Filled Lift Spring
Sea-Dog 321422 Gas Filled Lift Spring is a gas-filled hatch lift spring engineered for controlled opening/closing performance and built with durabl...
View full detailsSea-Dog 3215831 Flush Gas Lift
Sea-Dog 3215831 Flush Gas Lift is a flush-mount gas lift bracket and ball stud assembly built for installing gas-filled lift springs on marine deck...
View full detailsSea-Dog 3215821 90° Gas Lift Mount-Mount-Wide
Sea-Dog 3215821 90° Gas Lift Mount-Mount-Wide is a 304 stainless steel gas lift mount designed to hold gas-filled lift springs at a 90° angle for m...
View full detailsSea-Dog 3215811 90° Gas Lift Mount-Narrow
Sea-Dog 90° Gas Lift Mount-Narrow (3215811) is a 304 stainless steel gas lift mount designed for securing gas-filled lift springs with a 10 mm ball...
View full detailsSea-Dog 321492 Gas Filled Lift Spring
Sea-Dog 321492 Gas Filled Lift Spring is a marine hatch/deck plate gas spring designed to provide controlled lift assistance with Sea-Dog’s unique ...
View full detailsSea-Dog 321488 Gas Filled Lift Spring
Gas filled lift spring with unique multi-lobe seal.Heavy gauge steel body, hard chromium plated shafts, bronze bushings and polymer end fittings.
Sea-Dog 3214861 Gas Filled Lift Spring
Sea-Dog 3214861 gas filled lift spring is designed to provide controlled assistance for opening and supporting marine deck hatches and similar lids...
View full detailsSea-Dog 3214841 Gas Filled Lift Spring
Sea-Dog 3214841 Gas Filled Lift Spring is a marine-grade gas spring lift support designed for smooth, reliable opening and controlled lift on deck ...
View full detailsSea-Dog 3214831 Gas Filled Lift Spring
Help keep hatch and deck access doors open with a Sea-Dog® gas filled lift spring featuring a unique multi-lobe seal for reliable lift support in m...
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