When you're sorting through deck hardware and seating covers for your boat, the real question isn't just what looks good on the deck. It's whether you need a durable access cover for a below-deck space or a comfortable, low-profile place to sit while you fish or cruise. These two upgrades sit close in price, but they solve completely different problems.
Quick verdict: Go with the 6" Deck Plate if you need a deck access cover. Go with the Compact Gray Marine Boat Seat if you want a seat that fits standard casting setups.
Here's a side-by-side look at the listed prices and main purposes:
| Product | Listed Price | Purpose | Relative Price |
|---|---|---|---|
| 6" Deck Plate | USD 63.75 | Access cover for a marine deck opening; 316 stainless steel, mirror-polished | |
| Compact Gray Marine Boat Seat | USD 52.19 | Low-profile universal-fit seat for casting/pontoon boat decks |
Where the 6" Deck Plate wins: If the job is sealing a below-deck opening, the deck plate is the product that does it. It's designed specifically as an access cover for below-deck spaces.
Where the Compact Gray Marine Boat Seat wins: If the job is adding a place to sit, the seat is the only seating option in this matchup. Its compact, easy-fit design makes it the more practical pick for fishing and pontoon boats.
6" Deck Plate For Boat Marine Stainless Steel Hardware Yacht Ship Accessories

The 6-inch deck plate is a single 316 stainless steel disc with a mirror-polished surface, made through silica sol precision casting. It's built for a 6-inch / 152 mm inner-dimension opening, and it comes ready to serve as an access cover. If your deck has that cutout and you want a rust-resistant way to close it, this is the product to choose. The main limitation is that it's a cover, not a seating surface. It solves a specific structural job and doesn't add any comfort. If you're deciding between seating and deck access, the deck plate only answers the access side of that question.
Compact Gray Marine Boat Seat - All-Day Comfort & Easy Installation - 15" x 11

The compact gray marine boat seat is a low-profile casting/fishing seat with a 15-inch width, 11-inch depth, and 6-inch height. It's designed for universal fit with standard casting seat setups, so it mounts easily on a boat deck. The gray color and space-saving footprint make it a clean, practical addition for a pontoon or fishing boat. Choose it when you need a perch, not a cover. The trade-off is that this seat is compact by design, so the seating area is modest rather than expansive. It answers the seating side of the decision and leaves the below-deck cover job to hardware like the deck plate.
Final choice by use case:
- Need an access cover for a below-deck space? The 6" Deck Plate is the one to buy.
- Need a seat for a fishing or pontoon deck? The Compact Gray Marine Boat Seat is the right pick.
- If price is the deciding factor, the seat's lower listed price makes it the easier call.
That's the deck hardware seating covers decision in a nutshell: pick the cover for access, pick the seat for comfort.