We researched and compared the leading waterproof storage options for truck beds based on manufacturer specifications, industry standards for water resistance, and aggregated owner feedback. Our evaluation focuses on real-world sealing performance, material durability, ease of mounting, and security. Below are seven products we found, each with distinct strengths and limitations to help you choose the right solution for your needs.

Photo Product Score Buy
Dee Zee DZ9500 Heavy Duty Truck Box Dee Zee DZ9500 Heavy Duty Truck Box
Best Overall Waterproof Box
Aluminum construction, continuous hinge, lockable latch, 12.5 cu ft capacity
9.2 🛒 Check Price
Truck Bed Waterproof Storage Bag by Rhino USA Truck Bed Waterproof Storage Bag by Rhino USA
Best Portable Soft Storage
600D PVC tarpaulin, roll-top closure, 60L capacity, tie-down loops
8.7 🛒 Check Price
Weather Guard Truck Box 1275-2-01 Weather Guard Truck Box 1275-2-01
Most Durable Premium Box
Diamond-plate aluminum, stainless steel hinges, 18 ga steel, 13 cu ft
9.0 🛒 Check Price
🚗
UWS EC-102 Economy Crossover Tool Box
Best Value Hard Box
Aluminum construction, single lid, 10 cu ft, black powder coat
8.4 🛒 Check Price
🚗
Rugged Ridge 11205.01 Black Waterproof Cargo Bag
Best for Off-Road Use
500D PVC, roll-top, 30L capacity, D-rings
7.8 🛒 Check Price
Truck Bed Tool Box by RVCOOL Truck Bed Tool Box by RVCOOL
Best Low-Profile Box
Aluminum, low-profile, 8 cu ft, dual lid, gas struts
8.1 🛒 Check Price
ATHENA Waterproof Truck Bed Storage Bag ATHENA Waterproof Truck Bed Storage Bag
Best Budget Soft Storage
PVC tarpaulin, roll-top, 50L, tie-down straps
7.3 🛒 Check Price

1. Dee Zee DZ9500 Heavy Duty Truck Box: Best Overall Waterproof Box

Dee Zee DZ9500 Heavy Duty Truck Box

🛒  Check Price on Amazon →

The Dee Zee DZ9500 is a full-width truck box built from heavy-gauge aluminum with a continuous hinge and a thick rubber weather seal. In our evaluation, owner feedback consistently reports that it keeps gear dry even during heavy rain or pressure washing. The gas strut assist makes opening smooth, and the two key-locking latches provide security.

However, its weight and size can be a drawback for those who frequently remove the box. It also requires drilling for mounting in most trucks. If you need a lighter, portable solution, consider a cargo bag instead. This box is best for truck owners who want a permanent, high-capacity waterproof storage solution.

  • Heavy-duty aluminum body with reinforced lid resists dents and corrosion.
  • Continuous hinge and automotive-grade weather seal keep contents dry.
  • Includes two key-locking latches and a gas strut for easy lid opening.

Pros: Excellent build quality and water resistance.; Large capacity fits most truck bed widths.
Cons: Heavy at over 60 lbs, may need two people to install.

2. Truck Bed Waterproof Storage Bag by Rhino USA: Best Portable Soft Storage

Truck Bed Waterproof Storage Bag by Rhino USA

🛒  Check Price on Amazon →

The Rhino USA waterproof storage bag is a soft-sided solution using 600D PVC tarpaulin and a roll-top closure. Based on owner feedback, it keeps contents dry even when submerged briefly. The tie-down loops allow secure attachment in the truck bed, and it folds flat for easy storage when empty.

However, it offers no theft protection and can be punctured by sharp cargo. It is best for temporary or light use, such as camping gear or dry clothes. If you need a lockable, permanent solution, a hard box is a better choice.

  • Heavy-duty 600D PVC tarpaulin with welded seams for waterproofing.
  • Roll-top closure with buckle straps ensures a watertight seal.
  • Includes 8 tie-down loops for secure mounting in truck bed.

Pros: Lightweight and collapsible when not in use.; Very affordable compared to hard boxes.
Cons: Not lockable; less secure against theft.; May not withstand sharp objects or heavy loads.

3. Weather Guard Truck Box 1275-2-01: Most Durable Premium Box

Weather Guard Truck Box 1275-2-01

🛒  Check Price on Amazon →

The Weather Guard 1275-2-01 is built like a tank with a diamond-plate aluminum lid and a steel base. In our research, it is the top choice for professionals who need to protect expensive tools. The continuous stainless steel hinge and high-density weather seal deliver outstanding waterproof performance.

However, its weight and price are significant drawbacks. It also has a shallower interior compared to some competitors. If you do not need extreme durability or have a limited budget, a lighter aluminum box may suffice. This box is best for heavy-duty commercial use.

  • Diamond-plate aluminum lid and 18-gauge steel base for extreme durability.
  • Stainless steel continuous hinge and weather seal resist corrosion.
  • Recessed key lock and paddle latch for secure access.

Pros: Virtually indestructible construction.; Excellent weather seal keeps out dust and water.
Cons: Very heavy (over 70 lbs) and expensive.; Limited interior depth due to lid design.

4. UWS EC-102 Economy Crossover Tool Box: Best Value Hard Box

🛒  Check Price on Amazon →

The UWS EC-102 is an economy crossover tool box that offers solid waterproofing at a lower price point. Owner feedback indicates it keeps tools dry in moderate rain, but some report seal issues after prolonged sun exposure. The aluminum body is lightweight and resists rust.

However, the single lid design requires reaching over the side to access gear, which can be inconvenient. The seal is not as robust as premium models. This box is best for budget-conscious truck owners who need basic waterproof storage without breaking the bank.

  • Lightweight aluminum with black powder coat finish.
  • Single lid with automotive-grade weather seal.
  • Includes two key-locking T-handle latches.

Pros: Affordable price for a hard box.; Easy to install with included hardware.
Cons: Single lid limits access to one side.; Weather seal may degrade over time.

5. Rugged Ridge 11205.01 Black Waterproof Cargo Bag: Best for Off-Road Use

🛒  Check Price on Amazon →

The Rugged Ridge 11205.01 is a compact waterproof cargo bag designed for off-road enthusiasts. It uses heavy-duty PVC and a roll-top closure to keep gear dry. In owner reviews, it performs well in rain and dust, but some users report seam failure after heavy use.

However, its 30L capacity is too small for most truck bed applications. It is better suited for storing inside a cab or as a secondary bag. If you need substantial storage, look for larger options. This bag is best for those who need a small, portable dry bag for essentials.

  • 500D PVC fabric with welded seams for waterproofing.
  • Roll-top closure with compression buckles.
  • D-rings and Molle webbing for secure attachment.

Pros: Compact and easy to store.; Good for smaller items and off-road trips.
Cons: Small capacity; not for large gear.; Durability concerns with heavy loads.

6. Truck Bed Tool Box by RVCOOL: Best Low-Profile Box

Truck Bed Tool Box by RVCOOL

🛒  Check Price on Amazon →

The RVCOOL low-profile tool box is designed for truck owners who need storage without blocking rear visibility. It features dual side-opening lids with gas struts and a rubber weather seal. Based on owner feedback, it provides good water resistance for light rain, but some report water ingress in extreme conditions.

However, its low height limits storage to smaller items. It is not suitable for large tools or bulky gear. If you need maximum volume, a full-size crossover box is better. This box is best for those who prioritize visibility and easy side access.

  • Low-profile design sits below bed rails for full visibility.
  • Dual side-opening lids with gas struts.
  • Lockable latches and rubber weather seal.

Pros: Does not obstruct rear view.; Easy access from either side of truck.
Cons: Limited capacity due to low height.; Seal may not be fully waterproof in heavy rain.

7. ATHENA Waterproof Truck Bed Storage Bag: Best Budget Soft Storage

ATHENA Waterproof Truck Bed Storage Bag

🛒  Check Price on Amazon →

The ATHENA waterproof storage bag is an entry-level option for those on a tight budget. It uses PVC tarpaulin and a roll-top closure similar to other soft bags. In our research, owner feedback is mixed: some find it adequate for light use, while others report seam leaks after a few months.

However, its lower material quality means it is less reliable for critical waterproofing. It is best for occasional use where water protection is not mission-critical. If you need dependable waterproofing, consider spending more on a Rhino USA or Dee Zee product.

  • PVC tarpaulin material with heat-welded seams.
  • Roll-top closure with clip buckles.
  • Includes 4 tie-down straps for securing.

Pros: Very affordable.; Lightweight and easy to store.
Cons: Seams may leak over time.; Not as durable as Rhino USA or Rugged Ridge.

Frequently Asked Questions

How do I ensure my truck bed storage is truly waterproof?

Look for products with a continuous weather seal (not just a foam strip), a lid that clamps tightly, and a design that channels water away. For soft bags, roll-top closures with multiple buckle straps provide the best seal. Check owner reviews for real-world water resistance reports.

Can I install a truck box myself?

Most hard boxes require drilling into the truck bed and using J-bolts or similar hardware. The process is straightforward for a DIYer with basic tools, but some heavy boxes may need two people. Soft bags typically use tie-down straps and require no drilling.

What size truck bed storage should I get?

Measure the width and depth of your truck bed. Full-size trucks can accommodate crossover boxes up to 60 inches wide. Compact trucks may need smaller boxes or soft bags. Consider what you plan to store: tools require a hard box, while camping gear can go in a soft bag.

Are soft storage bags as waterproof as hard boxes?

High-quality soft bags with roll-top closures can be just as waterproof as hard boxes when properly sealed. However, they are more prone to punctures and UV damage over time. Hard boxes offer better theft protection and durability.

How do I maintain the waterproof seal?

Periodically clean the rubber or foam seal with mild soap and water. Apply a silicone-based lubricant to prevent drying and cracking. For soft bags, avoid overstuffing which can stress the seams. Store the bag out of direct sunlight when not in use.

Our Verdict

After researching and comparing these products, our top pick is the Dee Zee DZ9500 Heavy Duty Truck Box for its excellent balance of waterproofing, durability, and value. The runner-up is the Weather Guard 1275-2-01 for those who need maximum toughness and are willing to pay a premium. For a portable option, the Rhino USA waterproof bag is a solid choice.