Whether you need to secure tools, gear, or camping equipment, a truck storage unit keeps your cargo organized and protected. We researched dozens of models, compared manufacturer specifications, and analyzed owner feedback to find the best options. Our evaluation focuses on build quality, security features, ease of installation, and real-world durability.

From under-seat safes to full-size crossbed boxes, the right unit depends on your truck model and how you use it. Below are our top picks, each with honest strengths and limitations.

Photo Product Score Buy
Dee Zee DZ8760 Heavy Duty Chest Dee Zee DZ8760 Heavy Duty Chest
Best Overall
56 x 16 x 16 inches, 18-gauge diamond plate steel
9.0 🛒 Check Price
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UWS EC15120 Low Profile Tool Box
Best Value
60 x 18 x 15 inches, aluminum construction
8.5 🛒 Check Price
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Weather Guard 125-0-001 Saddle Box
Most Durable
62 x 12 x 14 inches, 16-gauge steel with weather seal
8.8 🛒 Check Price
Buyers Products L-Box Aluminum Underbody Box Buyers Products L-Box Aluminum Underbody Box
Best Underbody
48 x 12 x 10 inches, aluminum with powder coat
8.1 🛒 Check Price
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TruckVault 2-Drawer Pedestal Storage System
Best Drawer System
Custom fit for specific truck models, 2 locking drawers
8.7 🛒 Check Price
Rough Country Under Seat Storage Box Rough Country Under Seat Storage Box
Best for Crew Cabs
Fits 2019+ Ram 1500 Crew Cab, heavy-duty plastic
7.8 🛒 Check Price
DECKED Drawer System DECKED Drawer System
Best Modular
Fits most full-size trucks, 2 drawers with 2000 lb load capacity on top
8.3 🛒 Check Price

1. Dee Zee DZ8760 Heavy Duty Chest: Best Overall

Dee Zee DZ8760 Heavy Duty Chest

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In our evaluation, the Dee Zee DZ8760 stands out for its rugged construction and reliable security. The 18-gauge diamond plate steel feels substantial, and the weather-resistant seal keeps contents dry in rain. Owner feedback consistently highlights the push-button lock as both convenient and secure. It fits most full-size trucks and comes with pre-drilled holes for straightforward mounting.

However, its weight is a real drawback for solo installers. Also, the box is relatively shallow, so it won’t accommodate tall items like upright power tools. If you need a low-profile, heavy-duty chest that will last years, this is a top choice. Skip it if you frequently remove the box for hauling large cargo.

  • Durable 18-gauge diamond plate steel construction with weather-resistant seal
  • Push-button lock with paddle handle for quick access
  • Pre-drilled holes for easy mounting in truck bed

Pros: Extremely sturdy build that resists dents and corrosion; Locking mechanism is smooth and secure
Cons: Heavy at over 60 pounds, making installation a two-person job

2. UWS EC15120 Low Profile Tool Box: Best Value

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The UWS EC15120 offers a great balance of functionality and affordability. Its aluminum construction keeps weight down to about 40 pounds, making installation manageable for one person. The brushed finish looks clean and resists corrosion. Owner feedback praises the low-profile design, which preserves rear visibility a key advantage for daily drivers.

On the downside, the aluminum is softer than steel, so it can dent if you toss heavy items on top. The latches are functional but not as robust as those on premium boxes. Best for truck owners who want a lightweight, no-fuss storage solution for light tools and gear. Not ideal for heavy-duty worksite abuse.

  • Lightweight aluminum with brushed finish resists rust
  • Push-button latches with key lock for security
  • Low-profile design maintains rear visibility

Pros: Lightweight and easy to install alone; Does not block rear window view significantly
Cons: Aluminum is less impact-resistant than steel; can dent if heavy loads are placed on top

3. Weather Guard 125-0-001 Saddle Box: Most Durable

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The Weather Guard 125-0-001 is built for the harshest conditions. With 16-gauge steel and a powder-coated finish, it resists rust and dents better than most. The continuous hinge adds strength, and the rotary latches provide a tight seal. Owner feedback from contractors is overwhelmingly positive regarding its longevity.

However, its saddle-box shape means it sits low and narrow, so you cannot store tall or bulky items. Installation requires precise alignment of the mounting brackets. It is a specialist tool for those who need maximum durability for small, heavy tools. Skip it if you need versatile storage for varied gear.

  • 16-gauge steel with automotive-grade paint finish
  • Continuous lid hinge and rotary latches with lock
  • Designed to mount behind wheel wells for full bed access

Pros: Extremely tough steel withstands heavy loads and impacts; Weather seal keeps out dust and moisture effectively
Cons: Narrow profile limits storage of wide items

4. Buyers Products L-Box Aluminum Underbody Box: Best Underbody

Buyers Products L-Box Aluminum Underbody Box

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The Buyers Products L-Box is a clever solution for maximizing bed space. It mounts under the bed or along side rails, keeping your gear accessible but out of the way. The aluminum build is light and corrosion-resistant, and the gasket provides decent weather protection. Owner feedback notes that it is ideal for storing recovery gear, straps, and small tools.

However, installation is not plug-and-play; you will need to drill into the frame or bed. The limited size means it only fits narrow items. Also, the lock mechanism can be stiff initially. Best for off-roaders and overlanders who want to keep the bed clear. Not for those who want quick, tool-free setup.

  • Mounts under truck bed or side rails to save bed space
  • Aluminum construction with weather-resistant gasket
  • Keyed lock with T-handle latch

Pros: Frees up bed space for other cargo; Keeps items out of sight and secure
Cons: Installation requires drilling and is more complex than bed boxes

5. TruckVault 2-Drawer Pedestal Storage System: Best Drawer System

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The TruckVault 2-Drawer system is the ultimate storage solution for organization and security. It is custom-built to fit your specific truck, so installation is precise and looks factory. The full-extension drawers glide smoothly and can hold heavy loads. Owner feedback from law enforcement and contractors highlights the peace of mind from its robust lock system.

The major drawback is the high price, which can be several times that of a standard chest. Also, once installed, it is permanent and takes up significant bed space. It is best for professionals who need secure, organized storage and are willing to invest. Skip it if you are on a tight budget or need removable storage.

  • Custom-fit to your truck model for seamless integration
  • Full-extension ball-bearing drawer slides with 100 lb capacity per drawer
  • Keyed lock and carpeted interior to protect gear

Pros: Organizes tools and gear with easy drawer access; High security with locking system and concealed hardware
Cons: Very expensive compared to traditional tool boxes

6. Rough Country Under Seat Storage Box: Best for Crew Cabs

Rough Country Under Seat Storage Box

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The Rough Country Under Seat Storage Box turns wasted space into a locked compartment. It is made from impact-resistant plastic and fits snugly under the rear seat of compatible trucks. Owner feedback appreciates the added security for valuables like firearms or electronics, and the no-drill installation is a plus.

However, it is model-specific, so many truck owners cannot use it. The plastic construction is durable but not as secure as metal. The lid latch can feel flimsy. Best for those with a compatible crew cab who want interior storage. Not for truck owners with different cab configurations or those needing heavy-duty security.

  • Utilizes dead space under rear seat
  • Molded from heavy-duty polypropylene with lid
  • Simple installation with no drilling required

Pros: Keeps items hidden and secure inside the cab; Easy to install and remove for cleaning
Cons: Only fits specific truck models; not universal

7. DECKED Drawer System: Best Modular

DECKED Drawer System

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The DECKED Drawer System transforms your truck bed into a organized storage and work platform. Its HDPE drawers are tough and slide smoothly, while the top deck can support heavy loads. Owner feedback from DIYers and contractors praises the modularity and the ability to keep tools sorted. The weather seals do a good job keeping dust out.

However, the system is heavy (over 100 lbs) and installation requires bolting into the bed. It also reduces bed depth, so tall items may not fit. The price is high, comparable to TruckVault. Best for those who want a permanent, organized system for tools and gear. Skip it if you need to haul bulky items frequently.

  • Modular system with two locking drawers and a flat deck on top
  • Made from high-density polyethylene (HDPE) and aluminum
  • Weather-resistant seals and easy-to-clean surface

Pros: Creates a flat, organized workspace above the drawers; Drawers can hold up to 100 lbs each and are fully removable
Cons: Installation can be time-consuming and requires some assembly

Frequently Asked Questions

What is the most secure type of truck storage unit?

Based on our research and owner feedback, steel tool boxes with paddle latches and key locks offer the highest security. Underbody boxes and drawer systems with concealed locks also provide good protection. Avoid plastic boxes for valuable items.

Can I install a truck storage unit myself?

Many units come with pre-drilled holes and hardware for DIY installation. Lightweight aluminum boxes can be installed by one person, but heavy steel chests may require a helper. Underbody boxes and drawer systems often need drilling and more time. Always check the manufacturer’s instructions.

Will a tool box fit my truck?

Most crossbed tool boxes come in standard widths (60-72 inches) to fit full-size trucks. Compact trucks may need a smaller model. Always measure your bed width and check for compatibility with bed liners or tonneau covers. Some units are model-specific.

How do I weatherproof my truck storage unit?

Look for units with rubber weather seals or gaskets. Apply silicone grease to the seals annually. Some owners add additional weatherstripping. Underbody boxes are more exposed, so ensure drain holes are clear.

What is the best storage unit for a truck with a tonneau cover?

Low-profile tool boxes like the UWS EC15120 work well with tonneau covers as they sit below the bed rails. Drawer systems like DECKED also allow full cover use. Always check clearance and compatibility before purchasing.

Our Verdict

After comparing specifications and owner feedback, the Dee Zee DZ8760 Heavy Duty Chest is our top pick for its unmatched durability and security at a reasonable value. For those needing organized drawer access, the TruckVault 2-Drawer System is the runner up, though at a higher cost. Choose based on your budget and whether you prioritize security or organization.