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.
Filters
Classic Series Stainless Steel Elliptical Portlight
Polished stainless steelFriction hinge for opening in any positionComplete with outside finishing ringSmoked acrylic with polished edgesInternal mo...
View full detailsRight Latch Dog Assembly
Right Latch Dog Assembly
Left Latch Dog Assembly
Left Latch Dog Assembly
Grooved Mushroom Cap
Grooved Mushroom Cap
Female Knob
Female Knob
Extruded Screen
Screens fits N0039-10FX, N0039-10FXN, N1039-10A, N2039-10A hatches.
Hatch Hi-Pro 20-3/16 X 20-3/16
Style A-external hinge. Anodized heavy-duty aluminum frames. 1-1/2" height above deck. Extra high sealing lip on base. Heavy-duty acrylic top and h...
View full detailsLow Profile Hatch, 18-1/2 X 18-1/2
Style A-external hinge. Anodized heavy-duty aluminum frames. Heavy-duty acrylic top. No sharp corners to snag lines or sails. Heavy-duty hinges, qu...
View full detailsLow Profile Hatch, 16-1/2 X 16-1/2
Style A-external hinge. Anodized heavy-duty aluminum frames. Heavy-duty acrylic top. No sharp corners to snag lines or sails. Heavy-duty hinges, qu...
View full detailsLow Profile Hatch, 20-1/4 X 20-1/4
Style A-external hinge. Anodized heavy-duty aluminum frames. Heavy-duty acrylic top. No sharp corners to snag lines or sails. Heavy-duty hinges, qu...
View full detailsHatch Package With Trim Ring & Screen, Black w/Smoked Acrylic Lens
This low profile molded hatch has quick action dogs, collet arm, vent position and smoked acrylic lens.Trim ring & screen included.
Hatch Package With Trim Ring & Screen, Black w/Smoked Acrylic Lens
This low profile molded hatch has quick action dogs, collet arm, vent position and smoked acrylic lens.Trim ring & screen included.
SeaDog 321680 Hatch Spring | Formed 304 Stainless Steel | #10 Fastener
Hatch spring is made of formed 304 stainless steel with injection molded nylon mounts. Big, heavy-duty spring that is ideal for larger hatches and ...
View full detailsSeaDog 321670 Hatch Spring with Internal Cable | Formed 304 Stainless Steel | #10 Fastener
Hatch spring has an internal wire that prevents the spring from being overextended during normal and is made of formed and stamped 304 stainless st...
View full detailsSea-Dog 3216601 Hatch Spring
Formed 304 Stainless Steel.
Sea-Dog 3216501 Hatch Spring
The Sea-Dog Stainless Steel Hatch Spring has an internal wire that prevents the spring from being overextended during normal use.Not recommended fo...
View full detailsSeaDog Hatch Adjuster | Formed & Stamped 304 Stainless & Nylon
Constructed of corrosion resistant formed 304 stainless steel with UV resistant injection molded nylon mounting pads and knob. These Hatch Adjuster...
View full detailsSeaDog Hatch Adjuster | Formed & Stamped 304 Stainless & Nylon
Hatch Latches are constructed of corrosion resistant stamped 304 stainless steel. Simple screw-in action holds hatch securely in closed position. I...
View full detailsSeaDog Hatch Adjuster | Formed & Stamped 304 Stainless & Nylon
Hatch Latches are constructed of corrosion resistant stamped 304 stainless steel. Simple screw-in action holds hatch securely in closed position. I...
View full detailsHatch Latch
Hatch Latches are constructed of corrosion resistant stamped 304 stainless steel. Simple screw-in action holds hatch securely in closed position. I...
View full detailsTaylor Installation Foam For Hatches 1/4" x 1/2" x 8'
For Taylor Made hatches model years 1990 to present.
Lewmar 39944030 Low Profile Size 44 Rectangular Self Supporting Hatch
The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck locatio...
View full detailsLewmar Medium Profile Hatch, Size 44
Ideal as a foredeck hatch on larger offshore yachts, the Medium Profile has thicker acrylic and deeper frame sections for greater strength and dura...
View full detailsLewmar Flush Hatch, Size 44
Lewmar pioneered the high-volume flush hatch platform back in 2006, bringing what was then Superyacht styling into mainstream boat production. The ...
View full detailsLewmar Low Profile Rectangular Hatch, Size 40
The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck locatio...
View full detailsLewmar 39930030 Low Profile Size 30 Rectangular Self Supporting Hatch
The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck locatio...
View full detailsLewmar Medium Profile Hatch, Size 30
Ideal as a foredeck hatch on larger offshore yachts, the Medium Profile has thicker acrylic and deeper frame sections for greater strength and dura...
View full detailsLewmar Hatch Trim Kit, White, Size 10
Easy and stylish way of finishing a hatch installation inside the cabin Trim kits come complete with a flyscreen Can only be fitted to boats with ...
View full detailsLewmar Low Profile Round Hatch, Size 22
The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck locatio...
View full detailsLewmar Lock Kit
Lock Kit
Lewmar Low Profile Rectangular Hatch, Size 20
The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck locatio...
View full detailsLewmar 39910030 Low Profile Size 10 Rectangular Self Supporting Hatch
The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck locatio...
View full detailsLewmar Low Profile Rectangular Hatch, Size 03
The Low Profile Hatch has soft styling and sleek looks, ideal for use on a powerboat. Smaller ventilation hatches are suitable for any deck locatio...
View full detailsLewmar Flyscreen, Standard, Size 2
Fits Standard portlights
Lewmar Ocean Hatch, Size 70 Flat Base
With its classic style, the Ocean Hatch is fitted to thousands of boats around the world. Its rugged construction provides the ultimate protection ...
View full detailsLewmar Ocean Hatch, Size 60 Flange Base
With its classic style, the Ocean Hatch is fitted to thousands of boats around the world. Its rugged construction provides the ultimate protection ...
View full detailsLewmar Flyscreen, Standard, Size 0
Fits Standard portlights
Lewmar 39660050 Ocean Size 60 Flat Base Hatch
With its classic style, the Ocean Hatch is fitted to thousands of boats around the world. Its rugged construction provides the ultimate protection ...
View full detailsLewmar Ocean Hatch, Size 50 Flat Base
With its classic style, the Ocean Hatch is fitted to thousands of boats around the world. Its rugged construction provides the ultimate protection ...
View full detailsLewmar Flyscreen Hinge Kit, White
Makes it easier to access the handles when the flyscreen is in place. Just undo two tabs and the flyscreen will hinge down and not fall out. The fl...
View full detailsLewmar Ocean Hatch, Size 30 Flat Base
With its classic style, the Ocean Hatch is fitted to thousands of boats around the world. Its rugged construction provides the ultimate protection ...
View full detailsLewmar Retro-Fit Vent, Grey
Vent can be fitted to the acrylic lens of any Lewmar hatch or to the deck* Made from the same rugged composite used in many Lewmar hatches Styled ...
View full detailsLewmar Ocean Hatch, Size 20 Flat Base
With its classic style, the Ocean Hatch is fitted to thousands of boats around the world. Its rugged construction provides the ultimate protection ...
View full detailsLewmar Ocean Hatch, Size 10 Flange Base
With its classic style, the Ocean Hatch is fitted to thousands of boats around the world. Its rugged construction provides the ultimate protection ...
View full detailsLewmar Standard Portlight, Size 4
A perfect match for any hatch in the Lewmar range, the Standard Portlight is stylish, competitively priced and easy to both use and install. Easily...
View full detailsLewmar Standard Portlight, Size 2
A perfect match for any hatch in the Lewmar range, the Standard Portlight is stylish, competitively priced and easy to both use and install. Easily...
View full detailsLewmar Standard Portlight
A perfect match for any hatch in the Lewmar range, the Standard Portlight is stylish, competitively priced and easy to both use and install. Easily...
View full details