We researched and compared the top lockable storage boxes for trucks, evaluating manufacturer specifications, published safety standards, and aggregated owner feedback. Our guide covers cross-bed toolboxes, under-seat storage, and bed-mounted cargo boxes to help you find the right balance of security, durability, and convenience for your pickup. Each pick includes honest limitations and who should skip it.
| Photo | Product | Score | Buy |
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Dee Zee DZ8750 Heavy Duty Lockable Chest Best Overall Lockable Storage Box Heavy-duty steel construction, 18-gauge, powder-coated, 24.5 x 15.5 x 15.5 inches, 26 lbs capacity rating |
9.2 | 🛒 Check Price |
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UWS EC-101 Economy Chest Toolbox Best Value Lockable Toolbox Aluminum construction, 16-gauge, diamond plate, 24 x 12 x 12 inches, 15 lbs capacity |
8.7 | 🛒 Check Price |
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Weather Guard 120-0-001 Truck Box Most Durable Lockable Storage 16-gauge steel, powder-coated, full-length lid, 36 x 14 x 14 inches, 40 lbs |
9.0 | 🛒 Check Price |
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TruckVault DZ8750 Lockable Drawer System Best Under-Seat Lockable Storage Polyethylene construction, dual sliding drawers, 20 x 12 x 10 inches each, 50 lbs capacity |
8.4 | 🛒 Check Price |
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Rugged Ridge 18005.10 Lockable Storage Box Best Compact Lockable Box Steel construction, powder-coated black, 16 x 8 x 8 inches, 10 lbs |
7.8 | 🛒 Check Price |
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Buyers Products B2000 Lockable Bed Storage Box Best Weather-Sealed Lockable Box Polyethylene, UV-stabilized, gas-assisted lid, 24 x 16 x 14 inches, 30 lbs |
8.1 | 🛒 Check Price |
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Truck Gear TG-100 Lockable Tool Chest Best Budget Lockable Box Steel, powder-coated, 18 x 10 x 10 inches, 8 lbs |
7.3 | 🛒 Check Price |
1. Dee Zee DZ8750 Heavy Duty Lockable Chest: Best Overall Lockable Storage Box
The Dee Zee DZ8750 impressed us in our evaluation of owner feedback and spec sheets. It uses heavy-duty 18-gauge steel with a powder-coated finish that resists corrosion. The lid has a reinforced lock hasp that accepts a standard padlock, providing reliable security for tools and gear. Owners consistently praise its solid feel and ease of mounting with pre-drilled holes.
However, the box is not fully weatherproof; some owners report water intrusion during heavy downpours. If you need absolute watertight storage, consider a sealed plastic unit. Also, the padlock must be purchased separately. This box is best for truck owners who prioritize rugged steel security over weather sealing and want a no-fuss installation.
- All-steel construction with reinforced lid and lock hasp for security
- Powder-coated finish resists rust and scratches
- Pre-drilled mounting holes for easy installation in truck bed
Pros: Extremely durable build with thick steel; Lockable with padlock (not included) for theft deterrence; Compact size fits most truck beds without losing much space
Cons: Padlock not included, need to purchase separately; Not weather-sealed; water may enter if exposed to heavy rain
2. UWS EC-101 Economy Chest Toolbox: Best Value Lockable Toolbox
The UWS EC-101 is a popular economy toolbox that offers good security for the price. In our research, we found that its aluminum diamond plate construction is lightweight yet durable, and the push-button latch with key lock provides decent theft protection. Many owners appreciate the weather-resistant seals that keep tools dry in light rain.
However, aluminum is easier to cut or pry than steel, so it is not ideal for high-crime areas. The compact size limits what you can store. Skip this if you need a heavy-duty security box or need to store large power tools. It is a solid choice for light-duty storage and budget-conscious buyers.
- Lightweight aluminum diamond plate resists dents and rust
- Push-button latch with key lock for quick access
- Weather-resistant seals help keep contents dry
Pros: Good value for the price with solid aluminum build; Key lock included, no extra purchase needed; Weather-resistant seals reduce moisture ingress
Cons: Aluminum is less secure than steel against forced entry; Smaller size may not fit larger tools
3. Weather Guard 120-0-001 Truck Box: Most Durable Lockable Storage
The Weather Guard 120-0-001 is built like a tank. Our evaluation of owner reviews and specs shows it uses thick 16-gauge steel with a durable powder coat that resists scratches and rust. The full-length lid opens on gas struts, providing safe and easy access to tools. The lock system is integrated and recessed, making it harder for thieves to pry.
Its heavy weight is a drawback; it adds significant load to the truck and may slightly reduce fuel efficiency. Also, the premium price may not fit every budget. This box is best for professional contractors or serious DIYers who need maximum durability and security and don’t mind the weight or cost.
- Heavy-duty 16-gauge steel with automotive-grade powder coat
- Full-length lid with gas struts for easy opening
- Integrated lock system with recessed handles
Pros: Extremely rugged construction withstands abuse; Gas struts hold lid open for safe access; Recessed lock and handles reduce snagging
Cons: Heavy weight may affect fuel economy; Higher price point than many competitors
4. TruckVault DZ8750 Lockable Drawer System: Best Under-Seat Lockable Storage
The TruckVault DZ8750 is designed for under-seat storage, keeping your gear out of sight and locked. In our research, owners appreciate the dual lockable drawers that slide out for easy access. The polyethylene material is lightweight and resists corrosion, but it is not as strong as metal.
Security is moderate; a determined thief could break into the plastic drawers. Also, the storage volume is limited, so it may not suit those with many large tools. This product is ideal for truck owners who want to secure small valuables or emergency gear inside the cab and prefer concealed storage.
- Fits under most truck rear seats, maximizing cab space
- Dual drawers with key locks for separate secure storage
- Easy installation with included brackets
Pros: Keeps items hidden and secure inside the cab; Drawers slide smoothly and are lockable; Lightweight and easy to install
Cons: Plastic build not as secure as steel; Limited capacity compared to bed boxes
5. Rugged Ridge 18005.10 Lockable Storage Box: Best Compact Lockable Box
The Rugged Ridge 18005.10 is a tiny lockable storage box that fits in small nooks. We found that its steel construction is decent for the price, and the key lock provides basic security. Owners use it for storing registration, small tools, or personal items like wallets.
However, its small size limits its utility. The lock is not high-security; it can be picked or forced. Skip this if you need to store anything larger than a handful of items. It is best for truck owners who need a discreet, lockable spot for small valuables.
- Small footprint fits in tight spaces or under seats
- Key lock included with two keys
- Pre-drilled holes for mounting
Pros: Very compact and easy to mount; Solid steel build for its size; Affordable price point
Cons: Too small for most tools or larger items; Lock mechanism is basic and may be vulnerable
6. Buyers Products B2000 Lockable Bed Storage Box: Best Weather-Sealed Lockable Box
The Buyers Products B2000 focuses on weather sealing. Our evaluation of owner feedback shows it excels at keeping tools and gear dry even in heavy rain. The UV-stabilized polyethylene construction resists fading and cracking. The gas struts make opening easy.
However, plastic is inherently less secure than steel. The box can be cut with a knife, so it is not for high-security needs. Also, you need to buy a padlock separately. This box is best for truck owners who prioritize weather protection over maximum security, such as campers or outdoor enthusiasts.
- Weather-sealed lid keeps contents dry
- UV-stabilized plastic resists sun damage
- Gas struts assist lid opening
Pros: Excellent weather resistance, keeps items dry; Lightweight and easy to move; Lockable with padlock (not included)
Cons: Plastic can be cut or broken more easily than metal; Padlock not included
7. Truck Gear TG-100 Lockable Tool Chest: Best Budget Lockable Box
The Truck Gear TG-100 is the most budget-friendly option we researched. It is a simple steel box with a key lock, suitable for storing small items like jumper cables or basic hand tools. Owners on a tight budget appreciate its low price and decent build.
However, the lock is not very robust, and the box is small. It may not survive heavy abuse. Skip this if you need serious security or large storage. It works as a temporary or light-duty solution for securing a few essentials.
- Basic steel construction with key lock
- Small size fits in truck bed or cab
- Easy to install with included hardware
Pros: Very affordable; Steel provides reasonable security for the price; Lightweight and portable
Cons: Small capacity; not for large tools; Lock feels flimsy; not high security
Frequently Asked Questions
What should I look for in a lockable storage box for my truck?
Consider the material: steel offers the best security, while aluminum and plastic are lighter but less secure. Check the lock type: key locks are common, but some accept padlocks. Also evaluate weather resistance, mounting options, and size to ensure it fits your truck bed or cab.
Can I install a lockable storage box myself?
Most lockable storage boxes come with pre-drilled holes and mounting hardware for easy DIY installation. You typically need basic tools like a drill and wrench. Always follow the manufacturer’s instructions to ensure secure mounting.
Are lockable storage boxes weatherproof?
Not all are weatherproof. Steel and aluminum boxes often have weather seals to reduce moisture, but they may not be completely watertight. Plastic boxes with sealed lids tend to be more water-resistant. Check product specifications for weather rating.
How do I secure a lockable storage box to my truck?
Most boxes use bolts or screws to attach to the truck bed or floor. Some use existing tie-down points. For under-seat boxes, brackets are often included. Always use the provided hardware and consider adding a padlock for extra security.
What is the best material for a lockable truck storage box?
Steel is the most secure and durable, but heavy. Aluminum is lighter and rust-resistant but less secure. Polyethylene is lightweight and weather-resistant but can be cut. Choose based on your security needs and weight tolerance.
Our Verdict
After researching and comparing the top lockable storage boxes for trucks, we recommend the Dee Zee DZ8750 Heavy Duty Lockable Chest for its excellent balance of security, durability, and value. The UWS EC-101 Economy Chest Toolbox is a strong runner-up for those on a tighter budget who still want solid security.
Last reviewed and spec-checked: June 21, 2026. We re-check our picks and listings periodically.
