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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Lewmar Hatch Lock Kit
Secure Your Lewmar Hatch with a Factory-Matched LockThe Lewmar Hatch Lock Kit provides a secure locking solution for Lewmar deck hatches, giving yo...
View full detailsLewmar Hatch Trim Kit – White, Size 00
A Clean, Finished Look for Your Lewmar Hatch InstallationThe Lewmar Hatch Trim Kit in white gives your hatch installation a polished, factory-finis...
View full detailsLewmar Low Profile Rectangular Hatch – Size 20
Sleek, Low-Profile Deck Ventilation for Powerboats and SailboatsThe Lewmar Low Profile Rectangular Hatch Size 20 delivers clean, modern deck ventil...
View full detailsLewmar Low Profile Rectangular Self-Supporting Hatch – Size 10
Compact, Self-Supporting Deck VentilationThe Lewmar Low Profile Rectangular Self-Supporting Hatch Size 10 delivers clean, modern deck ventilation i...
View full detailsLewmar Low Profile Rectangular Hatch – Size 03
The Smallest Low Profile Hatch in the Lewmar RangeThe Lewmar Low Profile Rectangular Hatch Size 03 is the most compact option in the Low Profile re...
View full detailsLewmar Flyscreen, Standard, Size 2
Fits Standard portlights
Lewmar Ocean Hatch – Size 70, Flat Base
Offshore-Grade Protection in the Largest Ocean Hatch SizeThe Lewmar Ocean Hatch is the benchmark for offshore deck hatches — fitted to thousands of...
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
Replace or upgrade your Lewmar portlight ventilation with the Lewmar Flyscreen, Standard, Size 0—designed for Lewmar Standard portlights. Key Featu...
View full detailsLewmar Ocean Hatch – Size 60, Flat Base
Offshore-Grade Protection in a Large-Format HatchThe Lewmar Ocean Hatch is the benchmark for offshore deck hatches — fitted to thousands of boats a...
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
The Lewmar Flyscreen Hinge Kit (White) restores convenient, hinged access to hatch handles while the flyscreen is in place—so you can open and oper...
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 detailsLewmar Stay
Lewmar Stay (SKU 239-360918999) is a replacement retrofit telescopic hatch stay/arm kit designed to help support and control the position of compat...
View full detailsLewmar Low Profile Rectangular Hatch, Size 65
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 60 w/Stay
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 60
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 393020200 Size 0 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 detailsLewmar Medium Profile Hatch, Size 60
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 Low Profile Rectangular Hatch, Size 50
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 detailsSeachoice Spring Hatch Holder, Supports Hatches and Lids Up to 10 Lbs., 304 Stainless Steel
The Seachoice Spring Hatch Holder supports hatches and lids up to 10 pounds. It snaps straight to hold and deflects to close. It is made of 304 sta...
View full detailsSeachoice Spring Hatch Holder, Supports Hatches and Lids Up to 20 Lbs., Stainless Steel Spring
The Seachoice Spring Hatch Holder supports hatches and lids up to 20 pounds. It snaps straight to hold and deflects to close. The spring is made of...
View full detailsTop Line Storage Hatch with Lock - White 9-9/16" x 23-57/64" (243 x 607 mm)
Top Line Marine Storage Hatch with Integrated Lock - White FinishPremium marine storage hatch with integrated locking mechanism for secure below-de...
View full detailsTop Line Storage Hatch with Lock - White 18-7/64" x 20-43/64" (460 x 525 mm)
Top Line Marine Storage Hatch with Integrated Lock - White FinishPremium marine storage hatch with integrated locking mechanism for secure below-de...
View full detailsTop Line Marine Hatch with Lock - White 18-7/64" x 20-43/64" (460 x 525 mm)
Top Line Marine Deck Hatch with Integrated Lock - White FinishPremium marine deck hatch with integrated locking mechanism for enhanced security. Th...
View full detailsTop Line Storage Hatch with Lock - White 14-9/16" x 14-49/64" (370 x 375 mm)
Top Line Marine Storage Hatch with Integrated Lock - White FinishPremium marine storage hatch with integrated locking mechanism for secure below-de...
View full detailsTop Line Marine Hatch with Lock - White 14-9/16" x 14-49/64" (370 x 375 mm)
Top Line Marine Deck Hatch with Integrated Lock - White FinishPremium marine deck hatch with integrated locking mechanism for enhanced security. Th...
View full detailsTop Line Marine Hatch with Lock - White 9-9/16" x 23-57/64" (243 x 607 mm)
Top Line Marine Deck Hatch with Integrated Lock - White FinishPremium marine deck hatch with integrated locking mechanism for enhanced security. Th...
View full detailsTop Line Storage Hatch with Lock - White 13-57/64" x 23-55/64" (353 x 606 mm)
Top Line Marine Storage Hatch with Integrated Lock - White FinishPremium marine storage hatch with integrated locking mechanism for secure below-de...
View full detailsTop Line Marine Hatch with Lock - White 12-13/32" x 17-21/64" (315 x 440 mm)
Top Line Marine Deck Hatch with Integrated Lock - White FinishPremium marine deck hatch with integrated locking mechanism for enhanced security. Th...
View full detailsLewmar Hatch Trim and Screen Kit Size 40 White 367640252
Lewmar 367640252 is a genuine Size 40 hatch trim and screen kit in white, used to finish the inside of a Lewmar hatch installation with a cleaner i...
View full detailsINDUSTRIAL Inspection Hatch - 132mm (6") Internal Diameter - Detachable Cover - White
INDUSTRIAL Inspection Hatch - 132mm (6") - Detachable Cover - WhitePremium inspection hatch with detachable cover made from tough plastic for extra...
View full detailsINDUSTRIAL Inspection Hatch - 100mm (4") Internal Diameter - Detachable Cover - White
INDUSTRIAL Inspection Hatch - 100mm (4") - Detachable Cover - WhitePremium inspection hatch with detachable cover made from tough plastic for extra...
View full detailsINDUSTRIAL Access Hatch - 316x360mm (12-7/16" x 14-3/16") - Detachable Cover - Grey
INDUSTRIAL Access Hatch - 316x360mm - Detachable Cover - GreyPremium access hatch with completely detachable cover made from tough UV-resistant pol...
View full detailsINDUSTRIAL Access Hatch - 316x360mm (12-7/16" x 14-3/16") - Detachable Cover - White
INDUSTRIAL Access Hatch - 316x360mm - Detachable Cover - WhitePremium access hatch with completely detachable cover made from tough UV-resistant po...
View full detailsLALIZAS Hatch Ventilating System 4D Windtrap - 12" x 12" x 32" (300 x 300 x 800 mm) Silver/Blue
LALIZAS 4D Windtrap Hatch Ventilation System - StandardAdvanced 4D Windtrap hatch ventilation system by LALIZAS designed to maximize airflow while ...
View full detailsMarine Inspection Hatch with Removable Cover - Grey 14.9" x 14.9" (380 x 380mm)
Premium Marine Inspection Hatch - Grey with Removable CoverThis professional-grade inspection hatch features a removable cover design for easy acce...
View full detailsMarine Inspection Hatch with Removable Cover - White 14.9" x 14.9" (380 x 380 mm)
Marine Inspection Hatch with Removable Cover - White FinishLarge square marine inspection hatch featuring a removable cover for maximum access to b...
View full detailsTop Line Marine Hatch - White 10-45/64" x 25-55/64" (272 x 657 mm)
Top Line Marine Deck Hatch - White FinishPremium marine deck hatch offering superior access, ventilation, and safety. The Top Line series represent...
View full detailsMid Line Marine Hatch - White 14" x 24" (355 x 600 mm)
Mid Line Marine Deck Hatch - White FinishEnhanced marine-grade deck hatch offering superior access and ventilation for boats and yachts. The Mid Li...
View full detailsMid Line Marine Hatch - White 11" x 15" (278 x 378 mm)
Mid Line Marine Deck Hatch - White FinishEnhanced marine-grade deck hatch offering superior access and ventilation for boats and yachts. The Mid Li...
View full detailsTop Line Storage Hatch - White 9-9/16" x 23-57/64" (243 x 607 mm)
Top Line Marine Storage Hatch - White FinishPremium marine storage hatch designed specifically for organized below-deck storage. The Top Line Stora...
View full details