Best Storage Unit For Truck: Compare Bed and Underbody Options

#1 · Best Overall

1. Rough Country Cargo Box

• Dimensions: 47.38"L x 20.5"W x 12.37"H
• Material Type: High Density Polyethylene (HDPE)
• Weight: 8 lb

Best for: Tailgate-reachable truck-bed cargo.

Why it ranks #1: Designed for 48-inch bed openings, it measures 47.38 by 20.5 by 12.37 inches and slides toward the tailgate for easier access.

A slide-toward-tailgate design lets the Rough Country cargo box bring stored items closer, reducing the need to climb into the bed to reach groceries, tools, or recovery gear. Its 48-inch bed-opening fit and included straps and carabiners make it a focused choice for contained, accessible truck-bed storage.

The 47.38-by-20.5-by-12.37-inch box is sized for trucks with 48-inch-wide bed openings, a key fit consideration before installation. Its slide-to-tailgate access brings cargo within reach, making frequent unloading or retrieval more convenient. High-density polyethylene construction is described as durable and long-lasting, while the included two straps and two carabiners provide the listed securing accessories. The spacious container helps keep everyday essentials from rolling or shifting around the truck bed.

Skip it if you need a sealed, lockable underbody toolbox; VEVOR’s 27-by-10-by-10-inch steel box has a gasket and keys.

Choose it if your truck has the specified 48-inch bed opening and you want groceries, tools, or recovery gear reachable from the tailgate. Its bed-opening fit is the key boundary to check.

Listed on Amazon as: Rough Country Truck Bed Cargo Storage Box

#2 · Flexible Compartments

2. GEARLAST Bed Cargo Organizer

• Dimensions: 48"L x 48"W x 48"H
• Material Type: Plastic

Best for: Flexible long-item organization.

Why it ranks #2: Its three sections and two removable dividers organize truck-bed gear, while removing dividers creates longer space for items such as tools.

Two removable dividers let the GEARLAST 48-inch cargo box switch from three sections to a longer open space, making it useful for separating small cargo or accommodating items such as bats and rackets. An included cargo net helps keep stored groceries, tools, and gear from shifting during travel.

The three-section arrangement separates different kinds of truck-bed or SUV cargo, while removing either divider creates more room for long or irregular items. That flexibility lets owners adapt the storage layout instead of assigning a fixed compartment to every load. The included cargo net helps prevent items from shifting while driving, complementing the divided interior. The product is described for truck beds or SUV trunks, so buyers can use the same organization approach in either location.

Skip it if you need a compact, enclosed box beneath a Silverado or Sierra seat; Tuyoung’s TY4-C001 is vehicle-specific under-seat storage.

Consider it if you regularly switch between separated cargo and longer tools or sports gear in a truck bed or SUV trunk. Its listed 48-inch dimensions call for ample space, so check the available cargo area.

Listed on Amazon as: GEARLAST 48" Truck Bed Cargo Box Organizer Slider Storage Loader System

#3 · Largest Underbody Box

3. VEVOR Aluminum Underbody Box

• Dimensions: 36"L x 14"W x 16"H
• Material Type: Aluminum
• Weight: 24.7 lb

Best for: Large aluminum underbody storage.

Why it ranks #3: This 36-by-14-by-16-inch aluminum box offers a stated 50 kg capacity, lock and keys, and a sealing strip for truck or trailer use.

The 36-by-14-by-16-inch VEVOR box offers a larger underbody storage footprint for tools or camping equipment on trucks, trailers, and other listed mounting locations. Its aluminum diamond-plate construction is specified as rust- and corrosion-resistant, while a rubber sealing strip and lock with keys help protect and secure stored gear.

The 36-by-14-by-16-inch enclosure provides room for maintenance tools or camping equipment, with a stated maximum load recommendation of 110 pounds. Aluminum is described as rust- and corrosion-resistant, waterproof, and scratch-resistant, supporting use in vehicle storage settings. A rubber sealing strip creates a tight seal when closed, and the lockable design comes with two keys. The listed installation locations include truck or trailer undersides, a camper back, or a pickup rack, allowing several placement options.

Skip it if you need a smaller, lighter underbody box; VEVOR’s 27-by-10-by-10-inch galvanized-steel model weighs 20.5 pounds.

Pick this for larger vehicle-mounted storage of tools or camping equipment when the available mounting location suits its 36-inch length. Its 24.7-pound unit weight and stated 110-pound load limit are useful planning boundaries.

Listed on Amazon as: 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

#4 · Steel Construction

4. VEVOR Steel Underbody Box

• Dimensions: 27"L x 10"W x 10"H
• Material Type: Cold Rolled Steel
• Weight: 20.5 lb

Best for: Weather-sealed underbody tool storage.

Why it ranks #4: Its 27-by-10-by-10-inch galvanized steel construction, rubber gasket, lock, and two keys suit buyers seeking compact underbody tool storage.

A full-perimeter rubber gasket helps the VEVOR underbody box block rain and dust, giving truck and trailer owners a more protected place for tools outdoors. Its 27-by-10-by-10-inch galvanized steel body has a powder-coated finish, while a T-handle and two keys support access to the lockable storage compartment.

The 27-by-10-by-10-inch dimensions provide a compact underbody storage format for tools, while the stated 66.1-pound capacity defines its load limit. Galvanized steel and a powder-coated finish are specified for durability and resistance to rust and wear. A full-perimeter rubber gasket helps block rain and dust when the door is closed, and the seamlessly welded body supports the enclosed construction. The T-handle, lock, and two included keys provide a defined way to access stored equipment.

Skip it if you need a larger underbody box; VEVOR’s 36-by-14-by-16-inch aluminum truck box offers more listed dimensions.

This suits owners seeking a compact, lockable underbody place for tools with a gasket to help keep out rain and dust. Consider the 27-by-10-by-10-inch dimensions and stated load capacity against your gear.

Listed on Amazon as: VEVOR Underbody Truck Tool Box, 27 x 10 x 10 Inch Heavy Duty Steel Trailer Storage Box with Lock & Keys, Waterproof Trailer Storage Organizer Under Body Chest with T-Handle for Truck, Van, SUV, Black

#5 · Broad Fit Claim

5. SCITOO Pickup Bed Box

• Dimensions: 20.87"L x 10.63"W x 22.25"H
• Material Type: Polypropylene

Best for: Broad-fit pickup bed storage.

Why it ranks #5: The 52-inch design is described as broadly compatible with mainstream full-size and mid-size pickups and uses polypropylene construction.

A universal 52-inch fit for most full-size and mid-size pickups makes the SCITOO storage box an option for owners seeking broad truck compatibility. Its polypropylene construction is described as sturdy, wear resistant, and easy to carry, while the product states that installation needs no complex modifications.

The stated 52-inch universal-fit design covers most full-size and mid-size pickups, giving buyers broad compatibility without a claim that it fits every truck. The product description says installation is quick and requires no complex modifications, which can simplify setup. Polypropylene is specified as the construction material, and the listed benefits include wear resistance and easier carrying. Its 20.87-by-10.63-by-22.25-inch dimensions provide a concrete space requirement to consider when planning truck-bed storage.

Skip it if you need a specified lockable, weather-sealed box; VEVOR’s 36-by-14-by-16-inch aluminum underbody box lists a lock and sealing strip.

Consider it if broad pickup compatibility and a stated no-complex-modifications installation matter more than a specified locking system. Check the listed dimensions against your bed and note that load capacity is not provided.

Listed on Amazon as: SCITOO 52 Inch Pickup Truck Bed Storage Box

#6

6. Weather Guard 316-3 Drawer

• Dimensions: 49"L x 24"W x 6.75"H
• Material Type: Aluminum
• Weight: 52 lb

Best for: Low-profile van tool drawers.

Why it ranks #6: This 49-by-24-by-6.75-inch aluminum lateral drawer unit targets truck-bed or van storage and supports up to 75 pounds per drawer.

At 6.75 inches high, Weather Guard’s Model 316-3 uses a low-profile, two-drawer layout for small tools and parts in a cargo van or truck bed. Its lateral drawers bring stored equipment to hand, while adjustable dividers help organize changing assortments without requiring a single fixed compartment arrangement.

The 49-by-24-inch footprint and 6.75-inch height provide a wide, shallow storage format for small equipment that benefits from being separated and accessible. Two lateral drawers slide out to bring contents closer, supporting a more orderly tool workflow than loose cargo. Adjustable dividers let owners rearrange the drawer layout as parts and tools change. Aluminum construction is listed as rust resistant, and each drawer carries up to 75 pounds, providing a specified load limit for stored equipment.

Skip it if you need stacked drawers in a narrower arrangement; Weather Guard Model 326-3 uses a stacked layout.

Choose this unit for van or truck-bed workflows centered on small parts and tools that benefit from two shallow, accessible drawers. Its 6.75-inch height is a practical boundary for taller equipment.

Listed on Amazon as: Model 316-3 ITEMIZER® Van Drawer Unit, Lateral, 49in x 24in x 6.75in

#7

7. Weather Guard 326-3 Drawer

• Material Type: Aluminum
• Weight: 48 lb

Best for: Stacked van tool drawers.

Why it ranks #7: Its stacked aluminum drawer layout is intended for truck-bed and cargo-van storage, with adjustable dividers and a 75-pound drawer limit.

Weather Guard’s Model 326-3 stacks its two drawers in a 12.25-inch-high format, offering a different arrangement from a wide, low-profile drawer unit. The aluminum construction and adjustable dividers serve small-parts and tool storage, while slide-out access helps bring equipment within reach in a cargo van or truck bed.

The 49-by-12.25-by-12.25-inch dimensions give this unit a long, comparatively narrow footprint with stacked drawer access. That layout can suit storage areas where a wider lateral unit is less convenient. Two drawers keep small equipment separated, and the adjustable dividers described for the ITEMIZER range help tailor organization to changing parts. Aluminum construction keeps the unit in the lightweight storage category identified by the product description. Each drawer is specified to carry up to 75 pounds.

Skip it if you have room for a wider, shallow drawer and need a 6.75-inch profile; Weather Guard Model 316-3 fits that layout.

This fits buyers organizing tools and small parts in a cargo van or truck bed where a stacked drawer arrangement suits the available space. Account for the listed 12.25-inch height when planning installation.

Listed on Amazon as: Model 326-3 ITEMIZER® Van Drawer Unit, Stacked, 49in x 12.25in x 12.25in

#8

8. Tuyoung Under-Seat Box

• Weight: 12 lb

Best for: Silverado and Sierra under-seat storage.

Why it ranks #8: This 30-by-18-by-10-inch box has removable dividers and specified compatibility with many Silverado and Sierra models, subject to fit exclusions.

Vehicle-specific under-seat compatibility makes the Tuyoung storage box a targeted option for listed Silverado and Sierra models, keeping small essentials inside the cab rather than loose on the floor. Its multiple compartments and removable dividers let owners sort items or open up space for larger, irregularly shaped cargo.

The box is listed for 2019–2026 Silverado 1500 and Sierra 1500 models, plus 2020–2026 2500HD and 3500HD models, with a stated 2019 1500 LT/LD exclusion. Multiple compartments help separate small items, while removable dividers can be adjusted or taken out for larger cargo. Included mounting hardware and an installation manual support setup. For trucks with factory rear floor liners, installation may require trimming those liners, an important fit and installation consideration.

Skip it if you drive a 2019 Silverado 1500 LT/LD, which is explicitly excluded; choose storage listed for your exact vehicle instead.

This suits owners of the specifically listed Silverado or Sierra who want organized storage beneath the rear seat. Verify the model-year and trim limitation, and account for possible factory floor-liner trimming before installation.

Listed on Amazon as: Under Seat Storage Boxes for 2019-2026 Chevy Silverado 1500&GMC Sierra 1500

#9

9. TRUNKCRATEPRO Organizer

• Material Type: Polyester
• Weight: 4 lb

Best for: Large shared cargo loads.

Why it ranks #9: The 36.22-by-17.13-by-12.5-inch organizer is explicitly suitable for trucks, but its open cargo-organizer format is less secure than a tool box.

A 36.22-inch-long footprint gives the TRUNKCRATEPRO organizer room to corral cargo across an SUV, truck, car, Jeep, or minivan trunk. Its extra-large format and water-resistant construction help group everyday gear in one place, while straps and a rigid base support orderly storage on the move.

The 36.22-by-17.13-by-12.5-inch body offers a broad trunk organizer footprint, so groceries, tools, and other cargo can be collected instead of left loose. Heavy-duty Oxford polyester provides the stated material construction, while the water-resistant feature helps with damp gear and spills. Straps support securing the organizer, and the rigid base is specified to allow up to 75 pounds of weight. It can also serve as a back-seat organizer, giving vehicle owners another placement option.

Skip it if you need a hard-sided, wheeled trunk; Plano Sportsman’s Trunk adds wheels and a lockable lid.

Choose it if you want a flexible, soft-sided organizer for a truck cab, SUV, or car trunk, and can spare its 36.22-inch length. It also suits back-seat placement when trunk storage is unavailable.

Listed on Amazon as: Car Trunk Organizer for SUV, Truck & Auto Cargo Storage, XL Black

#10

10. Plano Sportsman Trunk

• Dimensions: 37.25"L x 18"W x 14"H
• Material Type: Plastic
• Weight: 2.7 kg

Best for: Rolling bulky gear storage.

Why it ranks #10: This 108-quart wheeled trunk has a lockable lid and reinforced plastic body, but it is portable cargo storage rather than truck-specific equipment.

Integrated wheels make the Plano Sportsman Trunk easier to move when loaded with bulky equipment, so stored tools, camping supplies, or hunting gear need not be carried by hand. Its 108-quart capacity and impact-resistant plastic construction suit buyers who want a roomy, reusable container for vehicle cargo.

The 108-quart capacity and 29.875-by-13.25-by-12.5-inch interior give larger equipment room inside a defined storage enclosure. Integrated wheels and recessed handles support moving the trunk when loaded, while the impact-resistant plastic body is described as durable and lightweight. A reinforced removable lid is lockable, and the trunk is stackable, helping owners secure contents and organize multiple containers. Its 37.25-by-18-by-14-inch exterior dimensions matter when allocating space in a truck bed or garage.

Skip it if you need a low-profile drawer that stays installed in a van; Weather Guard Model 316-3 provides two lateral drawers.

Pick the Plano for bulky equipment that benefits from a wheeled, lockable container, especially when it must travel between vehicle and storage area. Measure for its 37.25-inch exterior length and 14-inch height before allocating cargo space.

Listed on Amazon as: Plano Storage Trunks