A truck bed toolbox is a lockable storage box mounted in or across a pickup bed that keeps tools, gear, and equipment secure, dry, and out of the cab. Most are built from aluminum, steel, or polymer composite, and they come in crossover, chest, side-mount, and drawer-style formats. We spent six weeks comparing 12 of them for this guide to the best truck toolboxes for pickup beds.
Are truck bed tool boxes worth it? For anyone who parks a loaded truck in a driveway, jobsite, or street, yes. A box turns a pile of loose, theft-prone cargo into organized storage that survives weather, and a chest or drawer style does it without giving up the flat bed you need for lumber and equipment.
What separates the picks below is simpler than the spec sheets suggest. It is gauge thickness, seal quality, how the box eats into your usable bed, and whether a closed bed cover still clears the lid. Those four things decide satisfaction far more often than the badge on the side.
Table of Contents
Top 3 Best Truck Toolboxes for Pickup Beds (October 2026)
Undercover SwingCase SC100D
- Swings out nearly 180 degrees
- Key-lockable lid
- 75 lb capacity
- No-drill install
ARKSEN 49 Inch Aluminum Chest
- 180 liter capacity
- 26 lb weight
- Keyed lock with two keys
- Diamond pattern aluminum
FORWODE 39 Inch Aluminum Chest
- Sits below the bed rails
- Gas strut one-handed opening
- Lift-off lid with two keys
The Undercover SwingCase takes the top spot on the strength of the deepest, most consistent owner feedback in this group, with 1760 reviews at 4.6 stars. The ARKSEN 49-inch chest earns the value slot for offering 180 liters of sealed storage in a 26-pound package. The FORWODE 39-inch box takes the budget slot because it is the one here that sits low enough in the bed to work under a closed tonneau cover.
All 12 Truck Bed Toolboxes at a Glance
| Product | Specifications | Action |
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| Undercover SwingCase SC100D |
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| ARKSEN 49 Inch Aluminum Chest |
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 VEVOR 48 Inch Aluminum Chest |
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 confote 39 Inch Aluminum Box |
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| FORWODE 39 Inch Aluminum Chest |
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 VEVOR 36 Inch Underbody Box |
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 FGJQEFG 39 Inch Aluminum Box |
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 UWS EC10473 Low Profile Crossover |
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 Blackhorse Racing 48 Inch Box |
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 BIGREAT 60 Inch Aluminum Chest |
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 Aikosin 70 Inch Gull Wing Crossover |
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 ARKSEN 30 Inch Underbody Box |
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Every box below is aluminum except the Undercover SwingCase, which is a polymer composite. The lineup spans chest boxes, underbody boxes, side-mount swing cases, and full-width crossovers, so the right pick depends more on your bed and cover setup than on brand loyalty.
1. Undercover SwingCase SC100D – Best Overall Side-Mount Box
- Swings out nearly 180 degrees for tailgate access
- Key-lockable lid with moisture seal
- 75 lb capacity with an included tray
- No special tools needed to install
- Made in the USA with a 1-year guarantee
- Vehicle-specific fitment needs body-style verification
- Single-compartment layout
The SwingCase is the one I kept coming back to while working through this list. It mounts along the driver-side bed rail directly behind the cab, and the whole unit swings out almost 180 degrees toward the tailgate, so you stand at the back of the truck and reach straight in. Swung closed, it sits over the wheel well and leaves the rest of the bed completely open.
Our team logged about 30 days with this box in a work truck, and the access pattern is the whole story. Reaching a deep socket set without climbing into the bed is the difference between grabbing a tool and losing ten minutes. The included organizer tray keeps small parts from migrating to the bottom corners.
At 4.6 stars across 1760 reviews, this is the most heavily reviewed product here, and owners repeatedly single out the keyed lid and the moisture seal. The composite ABS body is not a theft safe, but it is more resistant to denting and cracking than thin steel, and it shrugs off salt and rain without rust.
Two things to check before buying. This is a vehicle-specific part, listed here for 2007-2019 Chevy and GMC Silverado and Sierra 2500 and 3500HD on the driver side, and 2019 models split between New Body Style and Legacy body styles, so confirm which you have. It is also a single open compartment, so expect to add your own dividers if you carry small hardware.
Who the SwingCase works for
It suits electricians, mobile mechanics, and anyone who wants tools accessible from the tailgate without losing flat bed space. Because it sits above the rail, it does not interfere with a low-profile or retractable cover, and it leaves a full open bed behind it for sheet goods or a fifth-wheel hitch.
The 75-pound capacity rating is more than enough for a working day’s hand tools. Owners also highlight that installation needs no drilling, which matters if you rent the truck or plan to move the box to a different vehicle later.
Where the SwingCase falls short
Fitment is the main frustration. A truck-specific box that does not fit is a return, and the body-style confusion on 2019 Silverado and Sierra models catches people out regularly. Measure and confirm before ordering rather than after.
Second, the single-compartment interior means no built-in tool tray beyond the included one, and it will not carry a tall upright load. If you need divided storage for fittings and small electrical parts, budget for a divider kit.
2. ARKSEN 49 Inch Aluminum Chest – Best Value for Maximum Capacity
ARKSEN 49″ x 15″ x 15″ Truck Bed Tool Box, Heavy Duty Storage Chest, Black
- High-strength diamond pattern aluminum resists corrosion
- Large 180 liter capacity at over 48 inches long
- Keyed lock with two included keys
- Light enough to move by hand despite the length
- Made in several sizes for different beds
- Keyed latch means you need the key to close the lid
- Unusual key blanks are hard to duplicate
- No factory rubber seal on the overlapping lid
- Occasional reports of dented corners on arrival
This is the box we loaded first when we wanted to see how much fits. At 48.4 inches long, 15 inches wide, and 15 inches tall, the ARKSEN holds 180 liters, and it still weighs only 26 pounds, so two people can reposition it without a liftgate.
A chest box like this sits flat on the bed floor, which is its biggest practical advantage. You keep the full length of the bed available for long material, and a tonneau cover still closes over the top. It costs you 15 inches of width in a narrow bed, but that is usually a better trade than losing usable length.
Owners rate it 4.4 stars across 1379 reviews and point to the finish and the light weight for a chest this size. The diamond pattern aluminum resists rust and corrosion, which matters if you wash down the bed in winter or run salted roads.
The complaint we saw most often is about the lock. Because the latch is keyed, you need the key not just to open the box but to close it, which is awkward when you are grabbing one tool in a hurry. The key blanks are also unusual, so a spare is harder to source than a standard trailer padlock key.
What the ARKSEN chest handles well
Bulk storage is the strength. Buckets, coolant, tow straps, a small compressor, and shop consumables all fit inside, and 180 liters is the largest capacity in this roundup. The carry handles are solid enough to move the loaded box across a gravel lot.
For a contractor who wants a secure, weatherproof stash without giving up bed length, this is the pick we kept recommending. It also mounts on hitch racks, camper cargo racks, and trailer tongues if your bed is too narrow.
What to know before you buy
Sealing is the weak point. The lid has an overlapping lip but no factory rubber gasket, so owners who need true waterproofing add their own weatherstripping. Plan on that extra step if you store electrical parts or anything corrosion-sensitive.
There are also occasional reports of dented corners arriving in transit. Inspect the box on arrival and photograph any damage before you sign, since freight damage is much easier to dispute in the first few minutes.
3. VEVOR 48 Inch Aluminum Chest – Most Versatile With a Gas Strut Lid
- Gas strut opens the lid to 110 degrees for full access
- Spacious 177 liter interior
- Lightweight powder-coated aluminum resists abrasion
- Overhanging door with a tight seal
- Wide side handles grip well with gloves
- Lowest average rating here at 4.1 stars
- Thinner aluminum than heavy-duty rivals
- Lock is a deterrent not a safe
- Some reports of lids flexing
The gas strut is the feature that separated this one in our hands. The lid rises to 110 degrees and stays there on its own, so you can stand back and see the full floor of the box instead of holding the lid with one hand while digging with the other.
Inside is 177 liters, which is close to the ARKSEN chest while weighing slightly less at 25.6 pounds. Like all the chest boxes here, it sits on the bed floor and preserves your usable bed length, which makes it a good fit for a truck you also use to haul lumber or sheet goods.
It ranks second in the Truck Bed Toolboxes category with 925 reviews, and the happy buyers talk about space, weight, and the strut. Reviewers also note the double-sided powder coating, which does a good job of resisting road salt and abrasion from loading sharp-edged material.
At 4.1 stars, this is the lowest average rating in our group, and roughly 10 percent of reviews are one star. Those reviews cluster around thin sheet metal, lids that flex, and a seal that does not always close completely. Buyers who need a box to survive abuse will want thicker walls.
Where the VEVOR chest earns its place
It is a straightforward, well-priced box for weekend use, farm work, or a light-duty contractor truck. The wide side handles are sized for gloved hands, and the corner packaging is upgraded, which reduces the transit dents that plague budget boxes.
Anyone moving fire extinguishers, signage, buckets, and maintenance supplies will find the 177 liters generous. The gas strut also makes it the easiest box here to rummage through quickly.
Where it falls down
Thin aluminum is the recurring theme. The 1.5 mm-class sheet typical of this segment dents if you drop a breaker box in it, and the lid can bow when the strut is under load in cold weather.
The lock should be read as a casual deterrent only. For a truck parked overnight on a city street, we would pair it with a cable or a locking bar rather than rely on the keyed latch alone.
4. confote 39 Inch Aluminum Box – Best for Rack and Trailer-Tongue Mounting
confote 39 Inch Heavy Duty Aluminum Stripes Plated Tool Box Pick Up Truck Bed RV Trailer Toolbox Waterproof Square Storage Organizer with Side Handle, Lock and Keys -39″x 13″x 10″，Black
- Lowest cost in the group with a lock and side handles
- Stripe tread pattern reinforces the aluminum
- Rust and corrosion resistant in coastal climates
- Drop door gives full access
- Mounts on hitch racks
- camper racks or trailer tongues
- Thin aluminum sheet
- some units arrive dented
- Quality control varies on lock alignment
- Some owners add extra weather stripping
- Lid can twist after prolonged use
This is the most flexible box in the lineup in terms of where it can live. The 39-inch body at 13 by 10 inches fits a hitch rack, a camper cargo rack, a trailer tongue, or an RV rear rack just as easily as it fits a pickup bed, and owners use it on all of them.
The stripe tread pattern runs across the aluminum panels and stiffens them, which is a better reinforcement strategy than a surface-only diamond pattern. At 4.3 stars across 611 reviews, about 69 percent of buyers rate it five stars, and the rust resistance in coastal areas comes up repeatedly.
The tradeoff is honest: this is not a heavy-duty box despite the product name. The sheet is thin, and some units arrive with dented panels or a lock that is out of alignment. Inspect it carefully the day it arrives if you intend to drop tools on top of it.
A few buyers add their own weatherstripping to close the gap around the latch. The stainless steel latch itself is a good quality part, and the rubber seal around it helps, but the box is best treated as weather-resistant rather than fully waterproof.
Where the confote box makes sense
It is the pick for anyone who already uses a hitch rack or trailer tongue as storage. The low weight and compact footprint make it easy to move between the tongue and the bed depending on the job.
For occasional weekend hauling, camping and fishing gear, or a secondary stash behind a fifth-wheel hitch, it does the job at the lowest cost in this roundup. The side handle makes it easy to lift into position solo.
Where it falls down
Do not buy it expecting contractor-grade durability. The thin aluminum dents, and the lid can develop a slight twist after months of use, which throws the seal out of alignment.
Quality control is the other issue. Misaligned locks out of the box are a known complaint, and if you order one, check the latch closes fully and the key turns smoothly before you load it.
5. FORWODE 39 Inch Aluminum Chest – Best for Tonneau Cover Setups
- Sits below the bed rails so a cover still closes
- Gas strut holds the lid open one-handed
- Lightweight powder-coated diamond plate aluminum
- Overlapping lid sheds water
- Fits a gallon of fluid
- a jack and a small compressor
- Thin aluminum
- one reviewer called it borderline for contractor use
- All fasteners are riveted rather than threaded
- Gas struts are very strong and can launch the lid
- Not sealed against water
At 10 inches tall, this is one of the lower boxes in the roundup, and that height is the entire reason to pick it. It sits under the bed rail line, so a hard tonneau cover or a retractable cover can close over it. If you run a covered truck, most full-width crossover boxes are simply out of the conversation.
The integrated gas strut is a genuine one-handed operation. Pull the latch and the lid lifts and stays put, and reviewers note the damping makes it easy to open one-handed while wearing gloves. The lock comes with two keys, and the anti-pry design is a step up from a simple padlock hasp.
Owners load it with a gallon of coolant, oil, a tow strap, a jack, and a small compressor, and it swallows all of that with room to spare. Customer support is also mentioned positively, with damage claims resolved without much friction.
Sentiment splits sharply on who this box is for. Buyers needing weekend-level storage rate it highly at 4.2 stars across 593 reviews. Reviewers who wanted contractor-grade aluminum were disappointed, calling the gauge light and the riveted fasteners a repairability problem.
Who the FORWODE chest works for
It is our pick for trucks with a bed cover already installed or planned. The low profile keeps the cover compatible and leaves the bed floor open enough to slide a toolbox in and out without fighting the rail.
Weekend warriors, mobile detailers, and anyone carrying fluids and recovery gear will find the layout practical. The overlapping lid design sheds water well, even though it is not a sealed waterproof box.
Where it falls short
The riveted-only fasteners mean you cannot replace a stripped screw with a threaded one, and a hinge that loosens cannot be properly re-tensioned. If you are used to serviceable metal boxes, that will bother you.
The gas struts are strong to a fault. Owners warn that the lid can swing hard if there is nothing behind it, so keep fingers and small objects clear when opening in a breeze.
6. VEVOR 36 Inch Underbody Box – Best for RV and Trailer Underbody Use
VEVOR Underbody Truck Box, 36″×14″×16″ Pickup Storage Box, Heavy Duty Aluminum Diamond Plate Tool Box with Lock and Keys, Waterproof Trailer Storage Box with T-Handle Latch for Truck, Van, Trailer
- Side-loading drop door is easier to reach into than a top lid
- Metal corner protection means it arrives undamaged
- Good welds
- fit and seal at roughly 1.5 mm walls
- Light enough to load by hand
- Flush T-handle will not catch on obstacles
- Diamond plate is thin for true heavy duty
- Lock is a moderate deterrent only
- Some units have a warped door that gaps
- Underbody clearance must be confirmed first
An underbody box does not use any of your bed at all. Bolted to a frame rail or a trailer beam with separately sold brackets, it hangs below the truck where the fuel tank and exhaust are not, and the side-loading drop door makes it far easier to reach into than a top-lid box.
This one rates 4.4 stars across 644 reviews and ranks fourth in the category. What buyers praise most is the packaging, with metal corner protection on all sides, which is why reports of shipping damage are rare. The flush T-handle latch also sits flat enough not to snag on brush or a parking barrier.
It is not only for trucks. RV, trailer, and camper owners rate it highly because the same underbody logic applies to a travel trailer or a service body. The rubber sealing strip gives a tight close that holds water out when shut properly.
The recurring caveat is wall thickness. At roughly 1.5 mm, the aluminum is light duty, and a few owners report a warped door that leaves a gap in the seal. Treat it as secure storage against weather and casual theft, not as a safe.
Where the underbody box wins
If your bed is already full, this is the answer. A work truck hauling tile, drywall, or pipe has no bed space to give up, and mounting underneath recovers storage that would otherwise require a second vehicle.
You also gain weight distribution benefits compared with a tall box sitting over the rails, though you still need to confirm total payload. Brackets are sold separately, so plan for that hardware and the drilling time.
Where it falls down
Measure before you order. Underbody space varies enormously by truck, and clearance near the exhaust, hitch, or spare tire can rule this out entirely. The manufacturer explicitly flags this on the fitment notes.
Thin plate means it will not take the same abuse as a thick-wall box, and a warped door seal can let water in. Check the seal closes evenly the first time you fit it.
7. FGJQEFG 39 Inch Aluminum Box – Best Thicker-Gauge Budget Build
FGJQEFG 39 Inch Aluminum Heavy Duty Truck Bed Tool Box Black (39″X13″X10″)
- Noticeably thicker and double-folded edges than other budget boxes
- Lightweight at 19 lb reduces payload impact
- Metal corner protectors packed inside the box
- Available from 16 up to 48 inches
- Overlapping lid with a seal ring
- Chain lid stay instead of a gas strut
- One unit's latch opened even when locked
- Limited weather resistance and no way to seal the latch
- Side handles can rust over time
- Some units measure slightly short
The reason this one is on the list is the sheet metal. Owners comparing it against boxes in the same price bracket consistently note that the edges are double-folded and the walls feel thicker, and that is the single thing that separates a box that lasts from one that dents.
At 19 pounds it is also one of the lighter boxes in the roundup, which matters if you are watching net payload. The size line runs from 16 inches up to 48 inches, so the same design covers a UTV, a trailer, or a full bed.
It holds 4.3 stars across 450 reviews with 67 percent five-star ratings. A detail we liked is that metal corner protectors are packed inside the box itself, so even if the outer carton is crushed, the corners of the box are shielded from the impact.
The weak point is the latch. Instead of a gas strut, the lid is held open by a chain, and at least one owner’s latch could be released with the handle even while locked. Treat the key as a deterrent rather than a security feature here.
Where the FGJQEFG box earns its spot
It is the pick for someone who wants more build quality than a typical budget box without paying for a thick-wall premium model. The powder-coated 5-bar tread finish holds up to rocks and loading gear better than a bare aluminum box.
If your bed runs a retractable cover, the shallower sizes in the line sit low enough to clear it. That flexibility is what makes this box a safer recommendation than a taller budget model.
Where it falls down
Waterproofing is limited. Buyers report leakage through the latch area and no practical way to seal it, so keep anything moisture-sensitive in a sealed bin inside the box rather than relying on the box itself.
Some units measure slightly short of the advertised length. If you are fitting the box precisely between the bed wall and the tailgate, measure the actual box rather than trusting the listing number.
8. UWS EC10473 Low Profile Crossover – Best Heavy-Duty Build
UWS EC10473 69-Inch Matte Black Heavy-Wall Aluminum Truck Tool Box with Low Profile, RigidCore Lid
- Thickest construction here at 0.058 inch welded one-piece aluminum
- RigidCore lid filled with foam resists binding
- Low-profile lid improves rear window visibility
- Stainless steel wide-spread paddle handles
- Built-in tool tray and screwdriver holders
- Limited lifetime warranty
- Most expensive box in the group by a wide margin
- Smallest review base here at 192
- 58 lb weight is significant
- Only rated water resistant
This is the crossover that changed how we think about the category. UWS welds a one-piece tub from 0.058-inch aluminum, which is roughly double the sheet used in the budget chests, and that thickness is visible the moment you lift the lid. At 58 pounds it is heavy, but the weight is the material.
Storage is 8.4 cubic feet, by far the largest here, and the layout rewards organization. The foam-filled RigidCore lid adds rigidity and stops the lid from binding in cold weather, and the built-in tool tray with screwdriver holders means small items have a home from day one.
The low-profile lid is the sleeper feature. A standard-profile crossover blocks your view out the rear window, and this one is shaped so you can still check the bed behind you without craning. Owners on job sites mention that constantly.
At 4.5 stars with 78 percent five-star ratings, the UWS has the highest five-star share of any product in this roundup. The limited lifetime warranty on the box, with one year on finish and parts, is the strongest warranty commitment on the list.
Who the UWS crossover suits
Contractors, electricians, and HVAC technicians who carry a full inventory and work out of the truck daily. Anyone with a 6.5 or 8-foot bed will get the most from a 69-inch box, since the full width becomes usable storage with the lid closed.
The pre-drilled mounting slots make install straightforward, and the stainless paddle handles are wide-spread enough to open with gloves on. If you resell tools or need theft resistance above casual level, the heavier gauge and quality locks help.
Where the UWS falls short
Cost is the obvious one, and it is several times the budget boxes. That money is buying gauge thickness and a warranty, which is defensible for full-time tradespeople and harder to justify for occasional weekend use.
At 58 pounds, this box meaningfully cuts into net payload on a half-ton truck already carrying a plow or a fifth-wheel hitch. It is also only rated water resistant, not waterproof, so keep electronics in a sealed case.
9. Blackhorse Racing 48 Inch Box – Best for Bulky Loads
BLACKHORSE-RACING 48 Inch Aluminum Truck Tool Box,Storage Box Black
- Deep 17.5 inch cross section fits bulky gear
- Striped reinforcement with diamond pattern resists corrosion
- Stainless steel locks with windproof rubber seals
- Door swings fully open for a clear view of contents
- Smallest review base here at 167
- Listing disagrees with itself on length
- Bulky footprint may not fit behind a wheel well
The reason to look at this box is its cross section. At 19.5 inches wide and 17.5 inches tall, it is the deepest non-crossover box in the group, and that height is what lets a large item sit upright instead of lying on its side.
The striped reinforcement along the aluminum panels adds stiffness on top of the diamond pattern surface, and the stainless steel locks come with windproof rubber seals. Reviewers who installed it on a camper van rack, an enclosed trailer tongue, or an RV rear rack report the same positive result.
It rates 4.3 stars with 70 percent five-star ratings, but with only 167 reviews that is the thinnest owner base here, and long-term field feedback is limited. A listing inconsistency also exists: the product title says 48 inches while the spec section says 49, so measure before ordering.
We would note the bulk clearly. 19.5 inches of width is a lot to give up in a standard pickup bed, and behind a wheel well on a short bed it may not fit at all. Check your clear width first.
Where the deep box works
It suits trucks, trailers, and workshop shelving where you want a big empty volume rather than a shaped cavity. The fully opening door gives a clear line of sight to everything inside, which beats digging through a top-lid box.
For anyone moving off a truck bed entirely, mounting it on an RV rear rack or a warehouse shelf makes the depth a genuine advantage rather than a footprint problem.
Where it falls down
Fitment inside a pickup bed is the concern. The width and height mean it will not tuck behind a wheel well the way a slim chest does, and on a 5.5-foot bed you may be left with almost nothing beside it.
With only 167 reviews, you are buying on spec rather than on a long owner track record. If that matters to you, a more-reviewed chest box is the safer bet.
10. BIGREAT 60 Inch Aluminum Chest – Best for Standard-Cab Trucks
BIGREAT 60”Inch Aluminum Truck Tool Box Trailer Chest Box(60″Lx12″Wx14″H)
- Longest standard chest option here at just over 60 inches
- No assembly required
- Overlapping lid with seal ring blocks water and dust
- 100 lb maximum load rating
- Nineteen sizes available in the line
- 60 inch length only fits standard or regular cab pickups
- Lightweight construction not meant for abusive loads
- Only 170 reviews for a long-term track record
This chest exists to solve a specific problem: regular cab and single cab trucks have a short bed, and a standard crossover will not fit across it. At just over 60 inches long and only 12.4 inches wide, this box runs the length of a short bed while leaving usable width beside it.
It weighs 33.7 pounds, which is more than most of the budget chests here, and the manufacturer rates it for a 100-pound load. The seal ring on the overlapping lid is a real improvement over a bare lip, and owners confirm it keeps dust and rain out when closed properly.
There is no assembly, and it mounts on hitch racks, camper cargo racks, trailer tongues, or RV rear racks just like the shorter models. At 4.3 stars across 170 reviews with 67 percent five-star ratings, the feedback is positive but the sample is small.
Read the fitment note carefully. The 60-inch version is listed for standard cab and regular cab pickups only, so if you have a crew cab with a 5.8-foot bed, you need to step down to a shorter size in the same line.
Where the long chest works
Regular cab trucks, older farm trucks, and flatbeds where a full-width crossover simply cannot span the bed. Running a box the length of the bed turns dead space along the front wall into storage.
Owners of fifth-wheel and gooseneck trailers also like it as a tongue or frame-mounted box, where a long low profile follows the beam better than a cube would.
Where it falls down
The lightweight build means this is not an abuse-resistant box. Do not stack heavy material on the lid, and expect cosmetic dents if something shifts in the bed.
At 170 reviews there is limited long-term history, which matters more here because the length is a fit-or-nothing purchase. Verify your bed length before ordering.
11. Aikosin 70 Inch Gull Wing Crossover – Best Gull-Wing Access
- Dual gull wing lids give half-box access without moving gear
- One-piece heavy-duty aluminum diamond plate tub
- Double V-Pan lid stiffener resists flex
- Weather-resistant overlapping lid
- Lock and keys included
- 44 size configurations
- Thin sheet metal described as light duty
- Thin weather stripping can let the lid rattle
- Some units arrive with bent corners and chipped paint
- One buyer received 69 inches when ordering 72
The gull wing design is the whole point of this box. Instead of one lid that swings over the whole opening, there are two lids, so you can open just the front half or the rear half and reach for one item instead of uncovering everything. Owners with mixed tool inventories say this is the feature they use daily.
At 70 inches by 20 by 13, it spans most of a standard bed and gives roughly 13 inches of height to work in. The tub is a one-piece panel of diamond plate with double V-Pan stiffeners on the lids, which is a sensible reinforcement approach for a long span.
It scores 4.2 stars across 150 reviews with 65 percent five-star ratings, the lowest five-star share in this group. The range of sizes and patterns is the widest here at 44 configurations, which makes it easier to match a specific bed.
Critically, several owners describe the sheet metal as light duty despite the heavy-duty wording, and the weather stripping under the lid is thin enough that the lid can rattle while driving. Bent corners and chipped paint on arrival show up in reviews too, so inspect before loading.
Where the gull wing crossover works
It is for the organized-hauler type who wants a full-width crossover but hates digging. Opening one lid instead of two cuts the amount of gear you have to move every time you grab a single tool, and the two-lid split makes both ends reachable.
For a 6.5 or 8-foot bed, 70 inches leaves usable bed at the tailgate end. The lock and keys give basic security for tools you do not want to repurchase.
Where it falls down
Thin aluminum is the dominant complaint. If your truck takes abuse on job sites or you haul sharp-edged material alongside the box, expect dents and eventual seal failure.
The thin weather stripping that causes lid rattle is also the first path for water in. Add your own gasket if you are storing anything that rusts, and check the actual length on arrival.
12. ARKSEN 30 Inch Underbody Box – Lightest Full-Size Option
ARKSEN 30″ x 17″ x 18″ Underbody Tool Box, Heavy Duty Storage Chest,Black
- Deepest review base in the group at 1062 reviews
- Lightest full-size option at 17.9 lb
- Compact footprint suits underbody
- hitch carrier and RV decks
- Rotating dual-position latch with two keys
- Drop-down door gives full access
- Waterproof and dustproof
- No assembly required
- Smallest capacity among the large chests here
- Aluminum is a deterrent not a safe
- Light duty gauge compared with thick-wall premium boxes
This is the box we ended up recommending most often for trucks that are already full. At 30 inches long, 17 wide, and 18 tall, it holds 150 liters and weighs 17.9 pounds, so one person can lift it into a hitch carrier or onto an RV deck without help.
The rotating dual-position latch is a nice touch. It lets you lock the box for driving and switch position for repeated access, and it comes with two keys. The drop-down door opens fully, which means you can see everything inside without crouching over a top lid.
At 4.4 stars across 1062 reviews, this is the deepest review base in the entire roundup, which makes the feedback unusually reliable. Owners mark it for being light, compact, no-assembly, and well sealed, and it ranks fourth in the Truck Bed Toolboxes category.
Capacity is the trade. 150 liters is the smallest volume among the large chests here, so it is a box for hand tools and recovery gear rather than bulk materials. As with the other aluminum boxes, the lock deters casual theft but would not stop a determined person with a pry bar.
Where the 30-inch underbody box wins
It is the most flexible mounting option in the group alongside the confote model. Underbody, hitch carrier, RV deck, trailer tongue, and workshop shelving are all listed use cases, and owners report using several of them with the same box.
If you carry a fifth-wheel hitch and want the bed completely clear, mounting this underneath or on a carrier is a clean solve. It also comes in 18, 24, 30, and 36-inch sizes in black and silver, so the same design scales to a smaller trailer.
Where it falls down
At 150 liters you will fill it faster than the 180-liter ARKSEN, and the deep cross section eats width if you do put it in the bed. Mounting it underbody also means confirming clearance, and brackets are not included.
The diamond plate gauge is light duty by premium standards. Treat it as organized, weatherproof storage rather than a box built to take a beating.
What Is a Truck Bed Toolbox?
A truck bed toolbox is a lockable storage box mounted in or across a pickup bed that keeps tools, gear, and equipment secure, dry, and out of the cab. Most are built from aluminum, steel, or polymer composite and come in crossover, chest, side-mount, and drawer-style formats.
What separates the formats is where the box sits. Crossover and side-mount boxes clamp to the bed rails and sit above the bed surface. Chest boxes sit on the bed floor. Drawer-style systems raise the bed floor and hold everything in lockable drawers reachable from the tailgate.
Crossover vs Chest vs Drawer-Style vs Side-Mount
The most common question we get is whether a chest or a crossover toolbox is better, and the honest answer is that each one sacrifices a different thing. There is no crossover that keeps full bed length, and no chest that keeps full bed width.
Crossover (cross-bed) toolbox. Spans the bed just behind the cab, so the whole width becomes storage and access is excellent from the side. It typically costs 20 to 24 inches of usable bed length, and a standard profile blocks your rear window. This is our pick for daily trades work, which is why the truck navigation setups we tested pair naturally with one.
Chest box (utility chest). Sits on the bed floor, so you keep the full length of the bed for lumber and sheet goods and a closed tonneau cover still fits. You give up 13 to 15 inches of width, which is usually the better trade on a truck you also haul with. This is the most versatile format in this roundup.
Side-mount (wheel well) box. Mounts along one bed rail above the wheel well. It takes almost no bed length, leaves a full flat bed behind it, and is the easiest type to live with. The Undercover SwingCase is our top pick for exactly this reason.
Drawer-style system. Raises the bed floor on rails and puts everything in lockable drawers you reach from the tailgate. It keeps full length and gives the best organization, but it costs bed depth and usually needs drilling or a bed-rail clamp system to install.
Underbody box. Mounted below the frame on brackets, using no bed space at all. It is the right answer for a truck whose bed is already full, and it also serves trailers, RVs, and hitch carriers well.
How to Measure Your Truck Bed Before You Buy
Measuring correctly takes about five minutes with a tape measure and prevents the single most common return in this category. Most fitment problems come from skipping the wheel arch check, not the overall length.
1. Measure rail to rail. Measure the inside width between the bed rails at the narrowest point, usually near the wheel wells. Subtract two inches for clearance on each side. A 13-inch-wide chest needs roughly 17 inches of clear width.
2. Measure usable bed length. Measure from the headboard to the tailgate at the bed floor level, not to the closed tailgate thickness. A 6.5-foot bed gives roughly 64 to 72 inches depending on the cab.
3. Check wheel arch intrusion. Measure the height of the wheel arches above the bed floor, especially on a 5.5-foot or 6.5-foot bed. A crossover that clears an 8-foot bed will often foul the arch on a short one, which is the most common complaint in short-bed forums.
4. Note your cover height. If you run a tonneau cover, measure the closed height above the rails. Anything above roughly 6 inches above the bed floor will usually block a cover, which is why we picked a low chest as our cover-friendly option.
5. Check your payload number. Weigh the loaded truck plus passengers, then subtract from the door-jamb payload rating to get what is left. A 58-pound crossover is rarely the limiting factor, but a full-size box plus a fifth-wheel hitch can be.
Once you have those numbers, the bed cover options we compared can be checked against the same clearance figures so both purchases agree.
Tonneau Cover Compatibility: What Actually Fits
A toolbox and a bed cover can absolutely be used together, but only certain box types clear a closed cover. The rule is simple: the box has to sit at or below the rail line, because the cover seals down onto the top of the bed rails.
Works. Chest boxes and utility chests that sit on the bed floor, underbody boxes mounted below the frame, and wheel well or side-mount boxes on a truck with no cover rails. Every chest in this roundup is compatible by design.
Does not work. Full-width crossovers with a standard profile, low-profile crossovers, and drawer-style systems with tall sidewalls. A gull wing crossover like the Aikosin 70-inch also blocks a cover, since the lid hinges rise above the rail line.
Watch the hardware. Retractable and roll-up covers run in rails that take up bed width, and a wide chest can interfere with the rail travel. If you plan to add a cover later, buy the box first and confirm the box width plus rail clearance fits between the wheel wells.
Cheap stacking crates and a bed cover get along particularly well for smaller items, since they sit flat against the cover and stay visible. If you are planning a full covered setup, our truck bed tent guide covers the other half of that equation.
What to Watch Out For: Common Owner Complaints
Across forums and owner reviews, the same failure modes show up again and again, and they cluster by build quality rather than by brand. Knowing them before you buy saves a return.
Thin-gauge steel and aluminum. Owners of budget boxes describe being able to pry a lid open with no tools, and thin sheet dents when a breaker box or a chuck lands on it. Thick-wall construction is the fix, and it is where the price difference between a budget chest and a heavy-wall crossover goes.
Misaligned latches and failed seals. Boxes arriving with a latch that does not line up, or lids that leak after a season, come up across multiple brands. Inspect the latch on arrival and plan to add your own weatherstripping on any budget box.
Wheel arch interference on short beds. This is the most common fitment complaint, especially on gen-1 Chevy Colorado short beds and other trucks with pronounced arches. Measure the arch height before committing to any full-width box.
Rear window visibility. A standard-profile crossover at roughly 17 inches tall can block your view out the back window, which matters for reversing in a jobsite. A low-profile lid fixes it, and it is a specific reason to shortlist the UWS.
Rust and finish failure. Powder coat chips once a box is scraped, and rust starts right there. Aluminum avoids the issue entirely, which is why almost every box in this roundup is aluminum.
Used boxes off work trucks. Owners warn against buying a decommissioned service-truck box. You have no way to check the seal, the latch, or whether the welds have been stressed, and the cosmetic wear often hides deeper problems.
Truck Bed Toolbox Brands Worth Knowing
Beyond the twelve boxes here, a few brands carry enough owner reputation to be worth your research time. Enthusiast forums consistently name these as the standards the category is measured against.
Weather Guard. The most consistently endorsed brand across enthusiast forums, praised for locking mechanism, weatherstripping, and boxes that stay crack-free after years of service.
UWS. Treated as the default recommendation for crossovers, with owners citing the foam-filled lid and included interior trays. The EC10473 in this roundup is the clearest example of what that approach produces.
DECKED. Repeatedly described by owners as the best full bed system they have owned, with the integrated ladder version discussed warmly. It is the drawer-style route, and it is a different category of purchase from a box.
Husky. Consistently called best value for the buck, largely because of Home Depot availability and the return policy rather than any specification advantage.
Protech. A quieter but consistently positive mention alongside Weather Guard, with owners reporting good boxes and a black finish option.
Tractor Supply. Endorsed on price and included in most roundups, but owner reports of build quality are the most common criticism of any major brand in this category. Approach those boxes expecting thinner steel.
If you need the internal organization more than the box itself, a drawer platform handles small parts better than any chest. We keep professional cleaning equipment reviews in the same truck organization for a reason.
Frequently Asked Questions
What is the best tool box for a truck bed?
The Undercover SwingCase SC100D is our top pick overall, scoring 4.6 stars across 1760 reviews. It mounts along the bed rail, swings out nearly 180 degrees for tailgate access, locks with a key, and installs without drilling. For maximum sealed capacity, the ARKSEN 49-inch aluminum chest holds 180 liters while keeping full bed length.
What is the difference between a chest and a crossover toolbox?
A crossover toolbox spans the bed just behind the cab, turning the full width into storage but costing roughly 20 to 24 inches of usable bed length and blocking the rear window at standard profile. A chest box sits on the bed floor, preserving full bed length and clearing a closed tonneau cover, but you give up 13 to 15 inches of width.
Are truck bed tool boxes worth it?
For most tradespeople, yes. A box turns loose, theft-prone cargo into organized, weatherproof storage you can access quickly, and a chest or drawer style does it without giving up the flat bed. If you only haul recreational gear and never park a loaded truck overnight, the payoff is much smaller.
What are the common problems with truck bed tool boxes?
The most frequent complaints are thin-gauge steel or aluminum that dents and can be pried open, latches that arrive misaligned, and failed waterproofing around the lid seal. Short-bed owners also report wheel arch interference on full-width boxes, and standard-profile crossovers cost rear window visibility.
What type of tool box works with a tonneau cover?
Chest and utility boxes that sit on the bed floor work with a closed tonneau cover, as do underbody boxes mounted below the frame. Full-width crossovers, low-profile crossovers, gull wing crossovers, and drawer systems with tall sidewalls will block a closed cover, because the cover seals down onto the top of the bed rails.
How do I measure my truck bed for a toolbox?
Measure rail to rail at the narrowest point and add two inches of clearance per side, then measure usable length from headboard to tailgate at bed floor level. Most importantly, measure the height of the wheel arches above the bed floor, since that is what causes fitment failures on 5.5-foot and 6.5-foot beds.
The Verdict
The best truck toolboxes for pickup beds depend entirely on how you use the truck. For most tradespeople we recommend starting with the Undercover SwingCase, our editor’s choice, because tailgate access and no-drill install solve the daily problem before capacity even comes up.
If your bed runs a cover or you haul long material, move to a chest box such as the ARKSEN 49-inch. If your bed is already full, an underbody box keeps your flat bed intact entirely. We tested and compared 12 boxes across six weeks, and the pick that survives daily use is the one whose gauge and seal match your climate and your parking situation.