Best Tool Box for under Tonneau Cover: Top Secure & Durable Picks

~ 19 min read

Finding the best tool box for under tonneau cover improves truck storage and security. Choosing the right one fits your truck bed and protects tools well.

A good under tonneau cover tool box saves space and keeps tools safe from weather and theft. These boxes fit snugly under the cover without reducing bed space. Made from heavy-duty materials like aluminum or high-density plastic, they resist dents and corrosion.

Many models include secure locks and waterproof seals to protect contents. Some offer sliding shelves or handles for easy access and transport. Whether for work or personal use, selecting the right size and style matters. This guide covers top options suitable for most full-size trucks, helping you pick a sturdy, reliable, and weatherproof tool box. Keep your tools organized and ready for any job with the best under tonneau cover tool box.

Uws Ec20503 Secure Lock 48-inch Matte Black Heavy-wall Aluminum Under Tonneau Cover Tool Box

UWS EC20503 Secure Lock 48-Inch Matte Black Heavy-Wall Aluminum Under Tonneau Cover Tool Box, RigidCore Lid

The UWS EC20503 Secure Lock 48-Inch Matte Black Heavy-Wall Aluminum Under Tonneau Cover Tool Box is ideal for truck owners who require a durable and secure storage solution for their tools and equipment. Whether you’re a contractor, tradesperson, or an outdoor enthusiast, this tool box offers a combination of strength and weather resistance to protect your valuable gear on the go.

Pros:

  • Heavy-wall aluminum construction ensures durability and long-lasting performance.
  • Matte black finish provides a sleek, professional look while resisting scratches and corrosion.
  • Secure lock system enhances protection against theft.
  • RigidCore lid adds extra strength and rigidity to the cover.
  • Spacious dimensions (19” H x 29” W x 52” L) offer ample storage capacity.

Cons:

  • Relatively heavy weight may require assistance during installation.
  • Limited to trucks compatible with 48-inch under tonneau tool boxes.

The UWS EC20503 stands out with its robust heavy-wall aluminum design, providing excellent resistance to dents and impacts while maintaining a lightweight profile compared to steel alternatives. Its matte black finish not only enhances the aesthetic appeal but also offers superior protection against environmental elements like UV rays and moisture. This makes it a reliable choice for harsh outdoor conditions.

Equipped with a secure lock mechanism, this tool box ensures that your tools and equipment remain safe from theft, giving you peace of mind whether you’re on job sites or traveling. The RigidCore lid further reinforces the structure, preventing warping and sagging over time. With generous internal dimensions, it accommodates a wide variety of tools and accessories, helping users stay organized and efficient.

Uws Ec20501 Secure Lock 48-inch Heavy-wall Aluminum Under Tonneau Cover Tool Box

UWS EC20501 Secure Lock 48-Inch Heavy-Wall Aluminum Under Tonneau Cover Tool Box, RigidCore Lid

The UWS EC20501 Secure Lock 48-Inch Heavy-Wall Aluminum Under Tonneau Cover Tool Box with a RigidCore Lid is ideal for truck owners who need a durable, secure, and weather-resistant storage solution. Whether you are a contractor, outdoor enthusiast, or someone who frequently transports tools and equipment, this toolbox offers a perfect blend of strength and convenience to keep your valuables safe and organized.

Pros:

  • Constructed from heavy-wall aluminum for enhanced durability and corrosion resistance
  • Features a secure lock system to protect your tools and equipment from theft
  • RigidCore lid design provides increased strength and impact resistance
  • Compact dimensions (Height: 19.0 inches, Width: 29.0 inches, Length: 52.0 inches) fit easily under most tonneau covers
  • Lightweight at 52 pounds, making installation and transport manageable

Cons:

  • May have limited capacity for larger tool collections due to its size
  • Price point might be higher compared to basic toolboxes without heavy-wall aluminum construction

The UWS EC20501 toolbox stands out with its heavy-wall aluminum construction, which not only provides excellent strength but also ensures resistance against rust and other environmental damage. This makes it a long-lasting investment for users who need a reliable storage option in harsh conditions. The RigidCore lid enhances protection by preventing dents and impacts, keeping the contents safe during transit or rough usage.

Additionally, the toolbox’s secure locking mechanism offers peace of mind by deterring theft and unauthorized access. Its dimensions are thoughtfully designed to fit snugly under tonneau covers without sacrificing storage space. Weighing just 52 pounds, it balances sturdiness with portability, allowing users to install or move it without excessive effort. Overall, this toolbox combines security, durability, and practical size, making it a great choice for professionals and outdoor users alike.

Realtruck Truxedo Tl - Tonneaumate

RealTruck TruXedo TL - TonneauMate | 1117416 | TonneauMate Toolbox - Fits Most Full Size Trucks, Except Flareside, Stepside or Composite Beds

The RealTruck TruXedo TL - TonneauMate Toolbox is ideal for truck owners who need a durable, secure, and convenient storage solution for their full size trucks (excluding flareside, stepside, or composite beds). If you frequently transport tools, equipment, or other valuable items and want to keep them protected from weather and theft, this toolbox is an excellent investment. It is especially suitable for contractors, outdoor enthusiasts, and anyone who requires organized storage on the go.

Pros:

  • Fits most full size trucks for versatile compatibility
  • Constructed by trusted brands RealTruck and TruXedo ensuring quality and reliability
  • Black finish offers a sleek, professional appearance
  • Compact dimensions (15.0 inches height, 23.0 inches width, 55.0 inches length) maximize storage without sacrificing bed space
  • Weighs only 54 pounds for easier installation and handling
  • Provides secure and weather-resistant storage for tools and equipment

Cons:

  • Not compatible with flareside, stepside, or composite beds
  • May reduce available truck bed length for larger cargo
  • Installation may require some mechanical skill or assistance

The RealTruck TruXedo TL - TonneauMate Toolbox combines robust construction with a sleek design, making it a practical addition to most full size trucks. Its weather-resistant black finish ensures that your tools remain protected from rain, dust, and other environmental factors, while the secure locking mechanism gives peace of mind against theft. Measuring 15 inches high and 55 inches long, it strikes a balance between offering ample storage space and preserving bed utility.

Designed by the reputable manufacturer TruXedo and distributed by RealTruck, this toolbox features durable materials that stand up to daily wear and tear. Whether you’re a contractor needing to keep tools organized or an outdoor enthusiast storing gear securely, this toolbox enhances your truck’s functionality without compromising style or convenience. Its compatibility with most full size trucks makes it a versatile choice for a wide range of users, although it is important to verify fitment for specific bed types before purchasing.

Forwode 48 Inch Truck Bed Tool Box Aluminum

FORWODE 48 Inch Truck Bed Tool Box Aluminum for Pickup RV Toolbox Truck Bed Toolboxes Heavy Duty Waterproof Truck Chest with Handle and Lock - Black

The FORWODE 48 Inch Truck Bed Tool Box is an ideal choice for professionals and DIY enthusiasts who frequently work on the go and need a reliable storage solution for their tools. This heavy-duty toolbox is perfect for pickup and RV owners who require a durable, waterproof, and secure container to keep their equipment organized and protected from the elements. Whether you are a contractor, mechanic, or hobbyist, this toolbox offers the convenience and security you need while traveling.

Pros:

  • Heavy-duty construction ensures durability and long-term use.
  • Waterproof design protects tools from moisture and weather damage.
  • Secure lock and handle provide added safety and ease of transport.
  • Spacious interior accommodates a wide variety of tools and equipment.

Cons:

  • Weight of 28.0 pounds may be cumbersome for some users.
  • Size might not fit smaller truck beds without adjustments.

The FORWODE 48 Inch Truck Bed Tool Box is crafted from high-quality aluminum, making it not only robust but also lightweight compared to other materials. Its black finish adds a sleek and professional look, complementing most vehicle exteriors. With dimensions of 48 inches in length and 15 inches in both width and height, this toolbox provides ample space without being overly bulky, making it a versatile choice for a variety of trucks and RVs.

One of the standout features of this toolbox is its waterproof capability, which ensures that your tools remain dry and rust-free, even in adverse weather conditions. The secure locking mechanism and sturdy handle enhance its functionality by providing peace of mind during transportation and easy access when needed. These features combined make the FORWODE toolbox a practical investment for anyone needing a reliable storage solution on the road.

Joytutus Lockable 160 Quart Truck Bed Tool Box

JOYTUTUS Lockable 160 Quart Truck Bed Tool Box, Waterproof Storage Box Truck Bed Cargo Case, Full & Mid Size Pickup Tool Box Toolbox Storage System

The JOYTUTUS Lockable 160 Quart Truck Bed Tool Box is ideal for pickup truck owners who need a reliable and secure storage solution for their tools and equipment. Whether you are a contractor, handyman, or outdoor enthusiast, this waterproof storage box is designed to keep your belongings safe and organized in both full and mid-size pickups. If you prioritize durability and protection against weather elements, this toolbox is a perfect fit.

Pros:

  • Large 160 quart capacity offers ample storage space for various tools and gear.
  • Lockable design ensures enhanced security for valuable items.
  • Waterproof construction protects contents from rain, snow, and dust.
  • Fits both full and mid-size pickup trucks, providing versatile compatibility.
  • Durable black finish resists corrosion and adds a sleek look to the truck bed.

Cons:

  • Relatively heavy, which may require assistance during installation.
  • Dimensions may limit fitment on some compact or non-standard truck beds.

The JOYTUTUS Lockable 160 Quart Truck Bed Tool Box features a robust build with a strong locking mechanism, making it an excellent choice for those who demand security and durability. Its spacious interior allows users to store a wide range of tools and accessories, keeping them organized and easily accessible. The waterproof design ensures that the contents remain dry, even in harsh weather conditions, giving peace of mind during transportation and storage.

Additionally, the toolbox’s compatibility with both full and mid-size pickups enhances its practicality for a broad audience. The sleek black color not only complements the truck’s aesthetics but also provides resistance against rust and wear. Overall, this storage system combines functionality with protection, making it a valuable investment for anyone looking to maximize their truck bed’s utility.

Yitamotor 49 Inch Truck Bed Tool Boxes

YITAMOTOR 49 Inch Truck Bed Tool Boxes Heavy Duty Aluminum with Sliding Shelf,Diamond Plate ToolBox for Pick Up Truck RV Trailer, Chest Storage Organizer with Lock and Keys

The YITAMOTOR 49 Inch Truck Bed Tool Box is ideal for truck owners, RV enthusiasts, and trailer users who need a reliable and spacious storage solution. If you frequently transport tools and equipment and want to keep them organized, secure, and easily accessible, this heavy-duty aluminum toolbox is designed to meet your needs. Its robust construction and practical features make it perfect for professionals and hobbyists alike.

Pros:

  • Constructed from heavy-duty aluminum with a durable diamond plate design for long-lasting protection.
  • Includes a sliding shelf to organize tools and maximize storage efficiency.
  • Equipped with a secure lock and keys to keep valuables safe during transport.
  • Spacious dimensions (49” length, 15” height, 15” width) accommodate a wide range of tools and gear.
  • Weather-resistant black finish protects contents from the elements.

Cons:

  • Relatively heavy due to aluminum construction, which might require assistance during installation.
  • Sliding shelf may have limited weight capacity, restricting storage of very heavy items.

The YITAMOTOR 49 Inch Truck Bed Tool Box stands out with its rugged aluminum build and diamond plate texture, offering both durability and a sleek look. The sliding shelf system enhances usability by allowing users to separate smaller tools from bulkier equipment, reducing clutter and improving workflow. This thoughtful design ensures that everything remains organized and easy to find, which is essential for busy professionals on the go.

Additionally, the toolbox’s secure locking mechanism provides peace of mind, protecting your valuable tools from theft or accidental loss. Its weather-resistant black finish guards against rust and corrosion, making it a reliable companion for outdoor use in various conditions. Overall, this tool box combines robust construction with practical features to deliver excellent value and convenience for anyone needing dependable storage on the road.

Access 62309 Tool Box Edition Roll-up Tonneau Cover

ACCESS 62309 Tool Box Edition Roll-Up Tonneau Cover44; 5 Ft. 8 In.

The ACCESS 62309 Tool Box Edition Roll-Up Tonneau Cover44; 5 Ft. 8 In. is ideal for pickup truck owners who need a durable, secure, and easy-to-use cover for their truck bed. If you frequently carry tools, equipment, or other valuable cargo and want to protect them from weather and theft while maintaining easy access, this tonneau cover is an excellent choice. It is especially suited for those who have a toolbox installed in their truck bed and require a cover that can accommodate that setup seamlessly.

Pros:

  • Durable construction from high-quality materials ensures long-lasting protection.
  • Roll-up design allows for quick and easy access to truck bed contents.
  • Weather-resistant features protect cargo from rain, snow, and UV damage.
  • Compatible with most toolbox installations thanks to its tailored design.
  • Lightweight at 35 pounds, making installation manageable for one person.

Cons:

  • May not fit trucks without a toolbox due to its specific design.
  • Limited to a single color option (black), which may not match all vehicle aesthetics.
  • Dimensions might not suit larger or smaller truck beds outside the 5 Ft. 8 In. length.

The ACCESS 62309 Tool Box Edition Roll-Up Tonneau Cover boasts a sleek black finish that complements most pickup trucks while offering robust protection. With a length of 78.0 inches, a width of 8.0 inches, and a height of 6.0 inches, it fits snugly over truck beds equipped with toolboxes, ensuring no gaps or loose edges. Its lightweight design at 35 pounds makes installation and removal straightforward, allowing users to adapt quickly to changing cargo needs.

One of the standout features is the roll-up mechanism that provides effortless access to the truck bed without having to remove the entire cover. This feature is particularly beneficial for users who frequently need to grab tools or equipment quickly. Additionally, the weather-resistant materials safeguard against rain, snow, and harmful UV rays, preserving the condition of both the tonneau cover and the cargo inside. Overall, this cover enhances both the functionality and appearance of a toolbox-equipped pickup truck.

Buyers Products 1712240 Black Poly All-purpose Storage Chest

Buyers Products 1712240 Black Poly All-Purpose Storage Chest , 6.3 cu. ft, Made In The USA, Dent-Resistant Lockable Storage Box for Truck, Trailer, Dock, or Deck, High-Density Polyethylene

The Buyers Products 1712240 Black Poly All-Purpose Storage Chest is ideal for individuals who need a durable and secure storage solution for their truck, trailer, dock, or deck. This product is perfect for contractors, outdoor enthusiasts, and anyone seeking a reliable and dent-resistant storage box made in the USA to protect tools and equipment from harsh environments.

Pros:

  • High-density polyethylene construction provides excellent durability and weather resistance.
  • Lockable design ensures security for valuable tools and supplies.
  • Spacious 6.3 cubic feet capacity accommodates a variety of items.
  • Dent-resistant material maintains appearance and structural integrity over time.
  • Made in the USA, ensuring quality craftsmanship and materials.

Cons:

  • Relatively heavy at 28 pounds, which may affect portability.
  • Black color may absorb heat if placed in direct sunlight for extended periods.

The Buyers Products 1712240 Storage Chest features robust construction using high-density polyethylene, making it highly resistant to dents and harsh weather conditions. Its large dimensions, including a length of 44 inches, width of 19 inches, and height of 17.5 inches, provide ample storage space for a wide range of tools and equipment. The lockable design offers peace of mind by protecting your belongings from theft or unauthorized access, making it suitable for both professional and personal use.

Additionally, the chest’s design allows it to be securely mounted on various surfaces such as trucks, trailers, docks, or decks, adding versatility to its applications. The black finish not only adds to its sleek appearance but also helps in hiding dirt and scratches, maintaining a clean look even in rugged environments. Overall, this storage chest combines functionality, durability, and security, making it an excellent investment for anyone needing reliable storage in demanding settings.

Buyers Products Diamond Tread Aluminum Underbody Truck Tool Box

Buyers Products 1705115 Diamond Tread Aluminum Underbody Truck Tool Box, 18 x 18 x 60, Made in USA, .100 in. Thick, Corrosion-Resistant, Locking Compression Latch, Secure Storage for Work Trucks

The Buyers Products 1705115 Diamond Tread Aluminum Underbody Truck Tool Box is ideal for professionals and tradespeople who require secure, durable storage for tools and equipment on their work trucks. If you need a rugged, corrosion-resistant toolbox that can withstand tough job site conditions while keeping your gear safe, this product is tailored for you. Its spacious dimensions and locking mechanism make it perfect for those who value both convenience and security in their mobile storage solutions.

Pros:

  • Constructed from .100 inch thick diamond tread aluminum for enhanced durability and corrosion resistance
  • Large storage capacity with dimensions of 18 x 18 x 60 inches, accommodating a wide range of tools
  • Equipped with a locking compression latch to ensure secure storage and prevent theft
  • Made in the USA, ensuring high manufacturing standards and quality
  • Lightweight at 66 pounds, facilitating easy installation without adding excessive weight to the vehicle

Cons:

  • Relatively long length (60 inches) may require sufficient underbody space on certain trucks
  • Silver color may show dirt and scratches more visibly compared to darker finishes
  • Weight, while light for its size, might still be a consideration for smaller trucks or vehicles with limited payload capacity

This underbody truck tool box offers an excellent combination of strength and functionality, thanks to its diamond tread aluminum construction. The corrosion-resistant material ensures long-lasting use even in harsh weather conditions, making it a reliable choice for outdoor work environments. The spacious interior allows users to organize and store a variety of tools and equipment efficiently, enhancing on-the-job productivity.

Additionally, the locking compression latch provides peace of mind by securing your valuable tools against theft and accidental opening while driving. The thoughtful design balances durability with practicality, making it a smart investment for anyone who needs dependable and secure mobile storage. Overall, this toolbox is a robust solution that meets the demands of professional users who prioritize quality and security.

Dee Zee Poly Plastic Storage Chest

Dee Zee DZ6535P Poly Plastic Storage Chest

The Dee Zee DZ6535P Poly Plastic Storage Chest is ideal for individuals seeking a durable and weather-resistant storage solution for their tools and equipment. Whether you are a contractor, a DIY enthusiast, or a vehicle owner looking to organize and secure your belongings, this storage chest offers a practical and reliable option.

Pros:

  • Durable construction made from high-quality poly plastic ensuring long-lasting use.
  • Weather-resistant design protects contents from rain, dust, and harsh outdoor conditions.
  • Compact dimensions (Height: 5.7 inches, Width: 6.25 inches, Length: 14.1 inches) make it easy to fit in various spaces.
  • Lightweight at 17.0 pounds for easy handling and installation.
  • Secure storage helps keep tools and valuables safe during transport or storage.

Cons:

  • Limited interior space due to compact size may not accommodate larger items.
  • Black color may show scratches and scuffs more visibly over time.
  • Poly plastic material, while durable, may not withstand extreme heavy impacts as metal chests would.

The Dee Zee DZ6535P Poly Plastic Storage Chest features a robust poly plastic body designed to resist corrosion and damage from exposure to the elements. This ensures your tools and equipment remain dry and protected, making it perfect for outdoor use or installation on trucks and trailers. The compact yet functional size allows it to be mounted conveniently without occupying excessive space.

Additionally, its lightweight design makes it easy to carry and install, reducing the effort needed during setup or relocation. The black finish adds a sleek and professional look, complementing a variety of vehicles and work environments. Overall, this storage chest combines practicality with durability, offering users a secure and convenient storage option for everyday use.

Frequently Asked Questions

What Is The Best Tool Box For Under Tonneau Cover?

The UWS EC20503 Secure Lock 48-Inch Heavy-Wall Aluminum Tool Box is ideal. It fits well under tonneau covers and offers strong security with a RigidCore lid.

Are Aluminum Tool Boxes Better For Truck Beds?

Yes, aluminum tool boxes like UWS and YITAMOTOR models resist rust and are lightweight. They provide durability and secure storage for truck beds.

Can Tool Boxes Fit Most Full-size Trucks?

TonneauMate Toolbox fits most full-size trucks except flareside, stepside, or composite beds. Always check dimensions before purchase for compatibility.

Are Waterproof Tool Boxes Available For Truck Beds?

Yes, FORWODE and JOYTUTUS offer heavy-duty waterproof truck bed tool boxes. They protect tools from weather and provide secure lockable storage.

What Size Tool Box Fits Under A Tonneau Cover?

Most under tonneau cover tool boxes range from 48 to 49 inches long. Check your truck bed size to ensure a perfect fit.

Are Poly Plastic Tool Boxes Durable For Trucks?

Buyers Products and Dee Zee poly plastic tool boxes are dent-resistant and durable. They offer corrosion resistance and secure locking features for truck storage.

Conclusion

Choosing the right toolbox for under your tonneau cover can make a big difference. These toolboxes offer strong, secure storage while fitting neatly under your cover. Whether you want aluminum for durability or plastic for lightweight use, there are options to match your needs.

Look for features like waterproof seals, strong locks, and easy access. A good toolbox keeps your tools safe and organized, no matter where you go. It also helps protect your gear from weather and theft. Think about the size of your truck bed and the type of items you carry.

This way, you pick a toolbox that fits well and works best for you. With the right choice, your truck stays tidy, and your tools stay ready. It’s a simple way to improve your truck’s function and convenience every day.


Herbert Langham

By Herbert Langham

ASE-Certified Master Technician & Garage Consultant based in Columbus, Ohio. Herbert helps drivers choose reliable automotive tools, accessories, and garage equipment through practical, experience-based advice.