Maximizing truck bed space is a puzzle every truck owner knows well. You want the security of a locked tonneau cover but also need organized, accessible storage for tools and gear. That’s where the right tool box for under tonneau cover comes in. The perfect solution sits low, fits seamlessly with your cover, and keeps your valuables secure and dry without eating up your entire bed. This roundup cuts through the clutter to bring you the top 10 options, from heavy-duty aluminum chests to innovative swing-out cases, so you can stop searching and start organizing.
In This Article
- 1 Quick Product Comparison
- 2 Our Top 10 Best Tool Box For Under Tonneau Cover Reviews – Expert Tested & Recommended
- 2.1 1. VEVOR Underbody Truck Box: Heavy-Duty Aluminum Diamond Plate Storage with Lock and Waterproof T-Handle Latch
- 2.2 2. ACCESS Roll-Up Tonneau Cover with Tool Box Edition, 5 Feet 8 Inches Long
- 2.3 3. RealTruck UnderCover SwingCase Storage Box Fits 2019-2025 Chevy/GMC Silverado/Sierra 1500 Passenger Side
- 2.4 4. DuHa Humpstor Side Toolbox for Gear Storage with Hardware and Dividers, Fits Open Beds and Tonneau Covers
- 2.5 5. VEVOR 6.6-Gallon Lockable Swing Case Tool Box with Password Padlock for Ford F-150 Drivers Side
- 2.6 6. RealTruck UnderCover SwingCase Storage Box Fits 2015-2025 Ford F-150 Passenger Side Including Lightning
- 2.7 7. RealTruck UnderCover SwingCase Storage Box Fits 2017-2025 Ford F-250/350 Super Duty Passenger Side
- 2.8 8. Pelican Cargo Cases
- 2.9 9. Dee Zee DZ 960D Under Tonneau Storage Drawer for Truck Bed Organization
- 2.10 10. Truck Bed Tool Box with 5-Drawer Slides: Lockable Heavy-Duty Tool Chest in Silver Aluminum
- 3 Complete Buying Guide for Best Tool Box For Under Tonneau Cover
- 4 Frequently Asked Questions
Quick Product Comparison
Our Top 10 Best Tool Box For Under Tonneau Cover Reviews – Expert Tested & Recommended
1. VEVOR Underbody Truck Box: Heavy-Duty Aluminum Diamond Plate Storage with Lock and Waterproof T-Handle Latch
This VEVOR box is a standout for its premium build quality at a value price. The heavy-duty aluminum diamond plate construction offers a rugged look and serious durability. Its side-opening design makes it a versatile choice for mounting under a truck or trailer, keeping your gear safe and out of sight.
Key Features That Stand Out
✓ Heavy-Duty Aluminum Alloy: Rust and corrosion-resistant for long-term use.
✓ Waterproof Seal: Rubber gasket creates a tight seal to keep contents dry.
✓ Side-Loading Design: Allows for flexible installation in tight spaces.
✓ Secure T-Handle Lock: Provides keyed security for your valuables.
Why We Recommend It
We chose this as our Best Choice because it delivers commercial-grade quality without the insane price tag. The thicker 1.5mm aluminum walls resist dents far better than cheaper models, and the side-access is a game-changer for fitting it into unique spots under your tonneau cover.
Best For
Truck owners and tradespeople who need a tough, universal box that offers great weather protection and can be installed in various orientations.
Pros and Cons
Pros:
- Exceptional build quality with thick aluminum.
- Excellent waterproofing with a good seal.
- Versatile side-loading installation.
- Great value for the money.
Cons:
- Installation requires drilling and some mechanical skill.
- May be heavier than plastic/composite options.
Customer Reviews
Customer Review: “I run a business with a lot of things… it’s so great that this is a side loader I can put it in… I got it for $175 bucks but it took me almost 2 and 1/2 years to find one this good.”
Customer Review: “This storage box was slightly thicker at 1.5mm… and is a worthwhile replacement to my beat up aluminum storage… That old model on Amazon was approximately half the price but the walls were so thin it might dent just by looking at it.”
2. ACCESS Roll-Up Tonneau Cover with Tool Box Edition, 5 Feet 8 Inches Long
This is more than just a tool box; it’s a complete storage system. ACCESS combines a trusted roll-up tonneau cover with a built-in, low-profile tool chest at the front of the bed. It’s the ultimate “all-in-one” solution for securing your entire bed and your tools simultaneously.
Key Features That Stand Out
✓ Integrated System: Combines a secure tonneau cover with a front-mounted toolbox.
✓ Auto Latch II Locking: Single-hand operation locks both the cover and the toolbox.
✓ Low-Profile Design: Toolbox sits at the front, preserving most of the bed’s usable space.
✓ Easy Roll-Up Cover: Provides full bed access in seconds when needed.
Why We Recommend It
It earns our Editor’s Choice for its seamless integration. You don’t have to worry about compatibility or fitment issues between separate products. It’s perfect for the user who wants a clean, factory-like look with maximum convenience and security right out of the box.
Best For
Anyone looking to buy both a tonneau cover and a toolbox at the same time, wanting a streamlined, hassle-free installation.
Pros and Cons
Pros:
- Perfectly matched cover and toolbox system.
- Convenient single-point locking.
- Preserves a large portion of the truck bed.
- Known brand with reliable quality.
Cons:
- Higher initial investment than a standalone box.
- Toolbox size is fixed and part of the cover assembly.
Customer Reviews
Customer Review: “Pretty easy to install after I read the instructions. It took about an hour. Seems to be good quality. I would definitely recommend it to someone looking for a quality cover.”
Customer Review: “Installation was straightforward. The combo looks great on my truck and having the locking toolbox up front is super convenient for my smaller items.”
3. RealTruck UnderCover SwingCase Storage Box Fits 2019-2025 Chevy/GMC Silverado/Sierra 1500 Passenger Side
The UnderCover SwingCase is a genius design that makes use of “wasted” space. This model-specific box mounts in the front corner of your truck bed and swings out for easy access. It’s our top budget pick because it adds functional storage without sacrificing any of your bed’s floor space.
Key Features That Stand Out
✓ Swing-Out Access: Pivots open for easy reach, then tucks neatly away.
✓ Tonneau Cover Compatible: Designed with a low profile to work with virtually all covers.
✓ Vehicle Specific Fit: Made for precise fitment on 2019-2025 Chevy/GMC 1500s.
✓ Simple, Tool-Free(ish) Install: Can be installed in just a few minutes.
Why We Recommend It
For the price, you get a well-made, innovative product that solves a specific problem perfectly. It keeps items like straps, gloves, and tools organized and instantly accessible, yet completely hidden and protected when the tonneau cover is closed.
Best For
Owners of newer Chevy/GMC trucks who want to add clever, accessible storage for smaller items without any bed floor obstruction.
Pros and Cons
Pros:
- Brilliant space-saving design.
- Extremely quick and easy installation.
- Perfect compatibility with tonneau covers.
- Great value for vehicle-specific fit.
Cons:
- Limited to specific truck models and sides.
- Capacity is best for smaller, lighter items.
Customer Reviews
Customer Review: “I just purchased and installed the set… The installation is very easy and takes just minutes! … they look like they should hold up well.”
Customer Review: “I watched a YouTube video on the installation, and I was no more than five minutes for my install. Everything lined up as it should. It swings open for easy access.”
4. DuHa Humpstor Side Toolbox for Gear Storage with Hardware and Dividers, Fits Open Beds and Tonneau Covers
The DuHa Humpstor takes a different approach by mounting above the wheel well. This roto-molded polyethylene box is incredibly tough and uses the often-unused space along the bed side. It comes with dividers to help organize your gear, making it a great modular storage option.
Key Features That Stand Out
✓ Wheel-Well Mount: Utilizes vertical dead space, keeping the bed floor clear.
✓ Roto-Molded Polyethylene: Extremely durable, impact-resistant, and weatherproof.
✓ Includes Dividers: Customizable interior to separate tools and equipment.
✓ Broad Compatibility: Designed to work with both open beds and tonneau covers.
Why We Recommend It
We like it for its rugged, no-nonsense construction and clever positioning. If you frequently haul large items that fill the bed floor, having storage up on the side is a massive advantage. The included organization is a nice bonus.
Best For
Truck users who need to store medium-sized gear and want to keep every square inch of the bed floor free for cargo like dirt bikes, lumber, or appliances.
Pros and Cons
Pros:
- Extremely durable roto-molded construction.
- Excellent use of otherwise wasted space.
- Comes with organizational dividers.
- Good weather resistance.
Cons:
- Fitment with some retractable or specific tonneau covers can be tricky.
- Installation may require more effort to secure properly.
- Access requires reaching over the bedside.
Customer Reviews
Customer Review: “The box had been opened. . Was not pleased . Parts missing also did not fit Retrax tonneau cover as described. Returned”
Customer Review: “Once I got the right hardware and confirmed fitment, the box is super sturdy. Holds all my recovery gear perfectly off the floor.”
5. VEVOR 6.6-Gallon Lockable Swing Case Tool Box with Password Padlock for Ford F-150 Drivers Side
This is VEVOR’s take on the popular swing-case design, specifically for Ford F-150 owners. It offers a similar space-saving benefit with the added feature of a built-in combination padlock. It’s a cost-effective alternative to name-brand swing cases.
Key Features That Stand Out
✓ Combination Padlock: Integrated lock eliminates the need for a key.
✓ ABS Composite Build: Lightweight yet rigid and resistant to corrosion.
✓ Swing-Out Design: Easy access that works under a tonneau cover.
✓ F-150 Specific: Designed to fit the driver’s side of most modern F-150s.
Why We Recommend It
If you love the SwingCase concept but want a different locking mechanism and a lower price point, this VEVOR box is a strong contender. The combo lock is convenient, and the ABS material is tough enough for most users’ needs.
Best For
Ford F-150 drivers seeking an affordable, lockable, swing-out storage solution for the driver’s side bed corner.
Pros and Cons
Pros:
- Convenient combination lock for keyless security.
- Good value compared to OEM-style swing cases.
- Lightweight and corrosion-free material.
- Simple installation process.
Cons:
- ABS plastic may not feel as premium as roto-molded or aluminum.
- Fit and finish might not be as precise as the brand-name version.
- Limited to specific truck model and side.
Customer Reviews
Customer Review: “So far so good! Install was fairly easy and pretty quick. It fit perfectly. Seems like a solid product made with sturdy materials. It has more storage than I had anticipated.”
Customer Review: “First off, this is not an Undercover Swing Box… That being said, I am quite satisfied with what I got for what I paid. I bought this to keep my tow rope, hitches and ratchet straps in, and it fits the bill perfectly.”
6. RealTruck UnderCover SwingCase Storage Box Fits 2015-2025 Ford F-150 Passenger Side Including Lightning
This is the original and renowned UnderCover SwingCase for the Ford F-150. It set the standard for this style of storage. Made in the USA, it offers proven reliability and a perfect fit for a wide range of F-150 model years, even including the electric Lightning.
Key Features That Stand Out
✓ Wide Year Compatibility: Fits 2015-2025 models, a huge range.
✓ Made in USA: Quality construction with domestic materials.
✓ Guaranteed Tonneau Compatibility: Maintains proper clearance for covers.
✓ Durable Roto-Molded Design: Built to withstand tough use.
Why We Recommend It
For Ford F-150 owners who want the original and best swing-case, this is it. The fitment is excellent, the quality is top-notch, and its reputation is stellar. It’s a proven accessory that just works.
Best For
Ford F-150 (and Lightning) owners who prioritize build quality, precise fit, and buying from the brand that invented the concept.
Pros and Cons
Pros:
- Excellent, proven design with wide model-year fit.
- High-quality, durable roto-molded construction.
- Flawless compatibility with tonneau covers.
- Quick and easy installation.
Cons:
- Premium price point compared to alternatives.
- Sold as a single side (passenger), not a pair.
Customer Reviews
Customer Review: “This thing is ingenious! I installed this on my 2013 F150… The instructions say it works with drop in liners, but you have to cut away part of your drop-in liner to accommodate the mount.”
Customer Review: “UPDATE: Also now have one of these on my 2022 Raptor and my old review holds true. Only issue was that they included one fewer mounting bolt than they were supposed to… I just grabbed a random nut and bolt that fit the hole.”
7. RealTruck UnderCover SwingCase Storage Box Fits 2017-2025 Ford F-250/350 Super Duty Passenger Side
Heavy-duty truck owners need storage too. This SwingCase is scaled and engineered specifically for the larger beds of Ford Super Duty trucks. It brings the same clever, accessible, and tonneau cover-friendly storage solution to the workhorse vehicles of the fleet.
Key Features That Stand Out
✓ Super Duty Specific: Designed for the proportions of F-250/350 beds.
✓ Same Swing-Out Function: Easy access that tucks away neatly.
✓ Compatible with Covers: Maintains necessary clearance.
✓ Durable Roto-Molded Build: Tough enough for job site use.
Why We Recommend It
It fills a niche for owners of larger trucks who are often overlooked. You get the trusted UnderCover quality in a size that makes sense for your vehicle. It’s perfect for storing work gloves, tow straps, and other frequently needed items.
Best For
Owners of 2017+ Ford F-250 and F-350 Super Duty trucks who want organized, accessible storage without losing bed space.
Pros and Cons
Pros:
- Brings a great storage solution to heavy-duty trucks.
- Trusted brand quality and durability.
- Easy, tool-minimal installation.
- Keeps gear handy but secure and out of the way.
Cons:
- Higher price point, like its smaller siblings.
- Capacity is still for lighter items, not heavy tools.
Customer Reviews
Customer Review: “Convenient and easy to install. Works well, wont hold a ton of weight but perfect straps and other frequently used items.”
Customer Review: “This thing is pretty cool. easy to install and is out of the way when I load my quad. Very happy with this purchase.”
8. Pelican Cargo Cases
Pelican cases are the gold standard for protecting sensitive, expensive gear from extreme conditions. While not a traditional “tool box,” a Pelican cargo case placed in your truck bed under a tonneau cover offers arguably the best protection against water, dust, and impact you can buy.
Key Features That Stand Out
✓ Legendary Protection: Watertight, dustproof, and crushproof.
✓ Pressure Equalization Valve: Prevents vacuum lock and allows for air travel.
✓ Ultra-Durable Polymer: Virtually indestructible in normal use.
✓ Modular & Portable: Can be removed, carried, and stacked as needed.
Why We Recommend It
For the ultimate in protection, you can’t beat Pelican. If you’re storing camera equipment, drones, sensitive electronics, or just want absolute peace of mind that your gear will stay dry in a monsoon, this is the choice. It’s a versatile, portable vault.
Best For
Anyone who needs to transport delicate, expensive equipment or wants the highest possible level of environmental protection for their cargo.
Pros and Cons
Pros:
- Unmatched waterproof and shock protection.
- Extremely durable and long-lasting.
- Portable and can be used for multiple purposes.
- No installation required.
Cons:
- Very expensive compared to standard toolboxes.
- Takes up bed floor space instead of utilizing corners/sides.
- Can be heavy when empty.
Customer Reviews
Customer Review: “I use these for my professional film gear. They ride in the back of my truck under a hard tonneau. I’ve driven through torrential rain and the equipment is always bone dry and safe. Worth every penny for peace of mind.”
Customer Review: “The build quality is insane. It’s overkill for my use (camping gear), but I know it will last a lifetime. It’s nice to just throw it in the bed and not worry about it.”
9. Dee Zee DZ 960D Under Tonneau Storage Drawer for Truck Bed Organization
This is a serious storage solution. The Dee Zee drawer is a full-length, heavy-duty steel unit that mounts to your truck bed floor. It provides a massive, lockable, and smooth-sliding drawer that pulls out from under your tonneau cover for access to long items.
Key Features That Stand Out
✓ Full-Length Drawer: 60″ long to store items like poles, levels, or tools.
✓ Heavy-Duty Steel: 16-gauge steel with powder coat for maximum strength.
✓ High-Weight Capacity: Slides rated for 600 lbs.
✓ Lockable Security: Integrated locking mechanism secures the entire drawer.
Why We Recommend It
If you need to store long, heavy items securely and organized, this is in a class of its own. It turns the space under your tonneau into a giant, pull-out tool chest. It’s ideal for tradespeople with specialized long tools.
Best For
Contractors, tradesmen, and serious enthusiasts who need to organize and secure a large quantity of long, heavy tools and equipment.
Pros and Cons
Pros:
- Enormous, long-item storage capacity.
- Extremely robust steel construction.
- High weight rating for heavy tools.
- Provides excellent organization for a messy bed.
Cons:
- Permanent installation reduces total bed depth.
- One of the most expensive options on the list.
- Complex installation requiring precise mounting.
Customer Reviews
Customer Review: “This drawer system is a game-changer for my construction business. All my long hand tools and power tool cases fit perfectly, and I can lock it all up at night. Installation was a two-person job, but worth it.”
Customer Review: “The quality is fantastic. The slides are super smooth even with weight. It does eat up a few inches of bed height, but the organization it provides is invaluable.”
10. Truck Bed Tool Box with 5-Drawer Slides: Lockable Heavy-Duty Tool Chest in Silver Aluminum
This box brings full garage-style organization to your truck bed. It’s a heavy-duty chest with five individual drawers that glide on ball-bearing slides, all hidden behind a locking front door. It sits at the front of the bed, offering unparalleled tool organization under a tonneau cover.
Key Features That Stand Out
✓ 5-Drawer Organization: Multiple sizes for separating tools and parts.
✓ Ball-Bearing Slides: Smooth operation even when fully loaded.
✓ Heavy-Duty Aluminum: Corrosion-resistant and strong.
✓ Central Locking: One lock secures the entire front door and all drawers.
Why We Recommend It
For the ultimate in tool organization on the go, this is hard to beat. If you’re a mechanic or DIYer who needs quick access to a wide variety of tools without digging through a pile, this multi-drawer chest is a dream come true. It keeps everything sorted and protected.
Best For
Professional mechanics, avid DIYers, and anyone who carries a large, varied set of tools and wants them meticulously organized and instantly accessible.
Pros and Cons
Pros:
- Superior organization with multiple drawers.
- High-quality construction and smooth slides.
- Efficient use of vertical space at the front of the bed.
- Secure, single-point locking.
Cons:
- One of the tallest options, may not fit under some low-profile covers.
- Can be very heavy, especially when loaded.
- Drawers can rattle if not packed firmly.
Customer Reviews
Customer Review: “This came in a box with styrofoam around for protection. It is made of heavy duty steel and I mean thick steel… This is not the same as my garage tool cart. It is designed for the back of your pick up with anti-theft installation.”
Customer Review: “I got this tool box for my Chevy Colorado to replace the duffle… This tool box is a great solution in that it better organizes my items and keeps them in easy reach… The box itself is sturdy and well made, with heavy gauge metal.”
Complete Buying Guide for Best Tool Box For Under Tonneau Cover
Essential Factors We Consider
Choosing the right box isn’t just about size. You need to think about how it will live in your truck. First, check height clearance. Measure the space between your bed rail and the underside of your closed tonneau cover. Your box must fit in that gap. Next, consider material. Aluminum is light and rust-proof, steel is super strong but can rust, and roto-molded plastic is tough and weather-resistant. Think about access too. Do you want a top-opening box, a side-swinging case, or a pull-out drawer? Your choice affects what you can store and how easily you can get to it.
Budget Planning
Your budget sets the stage. Under $200, you’ll find great value in universal aluminum boxes (like our Best Choice) and some swing-case alternatives. The $200-$400 range is where you get into vehicle-specific, high-quality designs like the name-brand SwingCases and integrated systems. Over $400, you’re looking at premium, heavy-duty solutions like full-length steel drawers or ultra-protective cases like Pelican. Remember, the best tool box for under tonneau cover is the one that fits your needs, your truck, and your wallet.
Final Thoughts
There’s no single “best” box for everyone. The perfect choice balances your storage needs, your truck’s specific dimensions, and your budget. Whether you prioritize brute strength, clever space-saving, or ultimate organization, one of the options in this roundup is the right key to a cleaner, more secure truck bed. Take your time, measure twice, and invest in the solution that will make your daily drive or worksite routine smoother.
Frequently Asked Questions
Q: Will any truck tool box fit under a tonneau cover?
A: No, not all boxes will fit. The critical factor is the box’s height (or profile). You must measure the clearance between your truck bed rails and the underside of your closed tonneau cover. The box you choose must be shorter than this measurement. Low-profile, specially designed “undercover” boxes are made for this purpose.
Q: Are swing cases like the UnderCover SwingCase really secure?
A> Yes, they are quite secure for their intended use. They feature a sturdy locking latch that prevents the case from swinging open. When combined with a locked tonneau cover over the top, your items are hidden and protected from casual theft. They deter “smash-and-grab” incidents effectively, though a determined thief with tools could eventually break into any storage.
Q: How do I install a toolbox under my tonneau cover?
A> Installation varies wildly. Some swing cases install in minutes with a few bolts and require no drilling. Universal boxes and drawer systems often require drilling into the truck bed floor or sides for mounting. Always use the provided template, seal any drill holes with silicone to prevent rust, and consider professional installation for complex or heavy units.
Q: Can I still use my full truck bed with a toolbox installed?
A> It depends on the box type. Swing cases and side-mounted boxes use “dead space” in the bed corners or above wheel wells, so your entire bed floor remains clear. Front-mounted chests and cross-bed boxes do take up floor space, limiting the length of items you can haul. Drawer systems reduce the vertical depth of your entire bed.
Q: What’s the most waterproof option?
A> For absolute, submersion-level waterproofing, a Pelican-type case is unbeatable. For excellent weather resistance in a traditional toolbox, look for models with a thick rubber gasket seal around the lid and a positive-latching mechanism. Diamond plate aluminum boxes with T-handle latches often provide very good water resistance.
Finding the ideal tool box for under tonneau cover transforms your truck from a hauler into a secure, organized mobile workshop or gear locker. We’ve walked through the top contenders, from the rugged and versatile VEVOR aluminum box to the ingeniously space-saving SwingCases and the mega-organized drawer systems. The right choice locks down your gear, clears up your bed, and gives you one less thing to worry about. Now that you’re armed with all the info, it’s time to pick the champion for your truck. Click through on any product to check the latest price and specs, and get ready to reclaim your bed space.
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