The Toughest Deck Plates on The Market
The Commercial Grade Series
Bomar’s Commercial Deck Plates are commercial grade, built to last out of durable Almag-35 cast aluminum, with stainless steel hardware and t-handle. Optional powdercoating and steel rings available. Bomar aluminum deck plates are available in standard Round shapes & sizes ranging from 6 inch to 10 inch to fit most commercial boating needs. *Note: Bolt Down versions available, please contact us.
Commercial Grade Series
Standard Features
The Commercial Series cast watertight deck plates by Bomar, featuring:
Download Product Sheet
Download Product Sheet
- Heavy Duty 535 Magnesium Hardened Aluminum
- Lightweight Combined with Strength & Durability
- Natural Brushed Finish
- Built & Tested for Harsh Marine Environments
- Low Profile Design
- Removable Lid for Easy Access
- Non-Skid Surface
- For Maximum Sealing Power
- 316L for Rust & Corrosion Resistance
- Durable Aluminum Locking Action
Commercial Grade Series
Additional Options
Commercial Grade aluminum deck plate personalization options, for any application.
- 5″ to 9″ Diameter to Accommodate Boat Builders & Enthusiasts
- Available in Round (Circle) Form Factors
- Custom Powdercoating
- CE Approvals
- Bomar Spare Parts & Installation Accessories Readily Available
Commercial Grade Series
Key Materials
Quality construction, built to last at sea.
- Bomar uses 535 magnesium hardened aluminum to construct our Commercial Series Cast deck plates. The raw almag-35 is heated to 1100 degrees F at the Bomar foundry and is then melted and poured into our proprietary cast molds.
- The Commercial Grade Series Cast deck plates are professionally assembled in-house with 316L, marine grade, stainless steel fasteners. Stainless steel is ideal for harsh marine environments due to it’s rust & corrosion resistance, strength and luster.
Bomar Commercial Grade Series
Deck Plate Size Chart
Weld-In Deck Plates
| Part # | I.D | O.D | Hole Cut Out | Style | Shape | Color | PDF Drawing |
|---|---|---|---|---|---|---|---|
| 4806 | 5 3/16″ (132 mm) | 8 3/8″ (213 mm) | 6 3/8″ (162 mm) | Locking | Circle | Cast Aluminum | DOWNLOAD |
| 4808 | 7 15/16″ (185 mm) | 10 7/16″ (248 mm) | 8 1/2″ (216 mm) | Locking | Circle | Cast Aluminum | DOWNLOAD |
| 4810 | 9 1/4″ (235 mm) | 12 1/2″ (318 mm) | 10 1/4″ (267 mm) | Locking | Circle | Cast Aluminum | DOWNLOAD |
Bolt Down Deck Plates
| Part # | I.D | O.D | Hole Cut Out | Style | Shape | Color | PDF Drawing |
|---|---|---|---|---|---|---|---|
| 4B08 | 8″ (204 mm) | 12″ (305 mm) | 10 1/4″ (260 mm) | Locking | Circle | Cast Aluminum | DOWNLOAD |
Commercial Grade Series
Frequent Questions
- Bomar is the leading manufacturer of hatches & portlights for enthusiasts and builders since 1947. We truly stand behind our products and pride ourselves on our outstanding customer service. All Bomar hatches are backed by our 1 year warranty against any manufacturing defects.
- Commercial deck plates come fully assembled and ready for installation alongside a bolt-in flange or weld-in flange of your choice. Bomar hatch flanges are available in steel & aluminum
- Deck plates are safely and neatly packaged for residential or commercial delivery. For large quantities, delivery to a commercial address is highly recommended.
- Yes, Bomar ships products worldwide across the globe. Shipping charges will be determined and billed separately once your order is ready to ship.
- Bomar offers replacement parts such as gaskets, dogs, handles, lenses & more for most products produced after 1999.
- Explore Spare Parts
- Customers may purchase these replacement items from an authorized dealer. Hatch lifespan will vary case by case depending on environment, use, and individual care.
Commercial Grade Series
Purchase Options
Purchase Commercial Grade Series watertight cast deck plates by Bomar.
Find A Dealer
Find A Dealer
Bomar, a division of Pompanette, LLC continues trustfully serving the worldwide marine community since 1947. We offer a variety of safe, secure, private and convenient purchasing options for OEM’s, dealers, distributors & end-users.