The value pick: a plastic dock bench box with a 10-year warranty for a fraction of fiberglass prices.
Lifetime $314.99The Lifetime Marine Dock Box 130 gal is the better dock box overall, rated 4.2 to 3.3. The Lifetime Marine Dock Box 130 gal leads on value and size. The DoxBox Fiberglass Rectangle 70" wins on build. The Lifetime Marine Dock Box 130 gal costs $484.01 less ($314.99 vs $799).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
A 6 ft fiberglass box with vents and soft-close arms for less than a Taylor Made of the same length.
Amazon $799Which should you buy?
- Choose the Lifetime Marine Dock Box 130 gal for value ($14.25 per cu ft ($314.99, 22.1 cu ft) vs $40.56 per cu ft ($799, 19.7 cu ft)) and size (22.1 cu ft exterior volume vs 19.7 cu ft exterior volume).
- Choose the DoxBox Fiberglass Rectangle 70" for build (fiberglass, UV-resistant finish vs polyethylene, UV-resistant finish).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 18 cu ft and up dock box; a clear win is highlighted. How we rank explains each one.
| Factor weight | Lifetime Marine Dock Box 130 gal | DoxBox Fiberglass Rectangle 70" |
|---|---|---|
| Overall rating | 4.2/5 | 3.3/5 |
| Value 30% | 100 $14.25 per cu ft ($314.99, 22.1 cu ft) | 48 $40.56 per cu ft ($799, 19.7 cu ft) |
| Size 15% | 59 22.1 cu ft exterior volume | 49 19.7 cu ft exterior volume |
| Build 20% | 44 polyethylene, UV-resistant finish | 80 fiberglass, UV-resistant finish |
| Features 20% | 70 spring-hinge lid, lockable latch, lid rated as a seat, tie-down points | 65 gas lid supports, lockable latch, vents |
| Warranty 15% | 100 10-year warranty | 0 warranty not published, scored as none |
Specifications
| Lifetime Marine Dock Box 130 gal | DoxBox Fiberglass Rectangle 70" | |
|---|---|---|
| Size | ||
| Exterior (W x D x H) | 60 x 24 x 26.5 in | 70 x 18 x 27 in |
| Shape | Rectangle | Rectangle |
| Style | Bench | Standard |
| Exterior volume | 22.1 cu ft | 19.7 cu ft |
| Interior | 57 x 20.7 x 23.7 in | - |
| Stated capacity (not scored) | 130 gal | - |
| Stated load rating (not scored) | 900 lb | - |
| Build | ||
| Material | Polyethylene | Fiberglass |
| UV-resistant finish | Yes | Yes |
| Made in USA | - | Yes |
| Features | ||
| Lid support | Spring hinge | Gas supports |
| Lockable | Yes | Yes |
| Seat-rated lid | Yes | - |
| Vents | - | Yes |
| Tie-down points | Yes | - |
| Ownership | ||
| Warranty | 10 years | - |
