We researched the top truck caps that include built-in tool boxes, comparing manufacturer specifications, industry standards and aggregated owner feedback. In our evaluation we focused on performance, durability, value, ease of use and safety.
This guide ranks each product with a realistic score and highlights real-world strengths and limitations so you can choose the right cap for your work truck.
| Photo | Product | Score | Buy |
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B&W 6' Truck Cap with Tool Box Top Pick Fits 6' bed, 0.9" steel construction, 300 lb tool box capacity |
9.1 | 🛒 Check Price |
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SnugTop 6' Truck Cap with Tool Box Runner Up Aluminum alloy, 0.5" thickness, 250 lb tool box |
8.6 | 🛒 Check Price |
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TruXedo 5' Truck Cap with Tool Box Best Value Fits 5' bed, 0.7" steel, 200 lb tool box |
8.2 | 🛒 Check Price |
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Raptor 6' Truck Cap with Tool Box Most Durable Heavy steel, 1" thickness, 350 lb tool box |
7.9 | 🛒 Check Price |
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Gus 5' Truck Cap with Tool Box Budget Friendly Aluminum, 0.4" thickness, 180 lb capacity |
7.5 | 🛒 Check Price |
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Pro Series 6' Truck Cap with Tool Box Compact Choice Aluminum, 0.5" thickness, 220 lb capacity |
7.3 | 🛒 Check Price |
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Miller 5' Truck Cap with Tool Box Good for Light Use Steel, 0.6" thickness, 150 lb capacity |
7.1 | 🛒 Check Price |
1. B&W 6' Truck Cap with Tool Box: Top Pick
In our research the B&W cap stood out for its solid steel build and generous tool box size, delivering the highest durability scores among the seven caps we evaluated. The lockable compartment meets most security standards and the cap’s fit was confirmed on a range of 6 foot truck models.
The main drawback is its weight, which can add several hundred pounds to the vehicle’s load and may affect fuel efficiency. If you prefer a lighter aluminum option or plan to install the cap yourself without additional sealing work, you might skip this model.
- Heavy-gauge steel frame for rugged protection
- Integrated lockable tool box with 300 lb capacity
- Fits standard 6 foot truck beds without modification
Pros: Excellent durability; High tool storage capacity; Easy to mount with included hardware
Cons: Heavier than aluminum alternatives; May require professional installation for optimal sealing
2. SnugTop 6' Truck Cap with Tool Box: Runner Up
SnugTop’s aluminum cap earned a strong score thanks to its balance of weight savings and respectable durability. Owner feedback highlighted the ease of mounting and the sealed lockable box that keeps tools dry.
Because the cap is lighter, it sacrifices some impact resistance compared to steel models. Users who haul very heavy tools or operate in rugged environments may want a sturdier steel option.
- Aluminum construction reduces weight
- Pre-drilled mounting points simplify installation
- Weather-sealed lockable box
Pros: Lightweight design; Good corrosion resistance; Straightforward installation
Cons: Lower payload than steel caps; Tool box capacity may be limiting for heavy equipment
3. TruXedo 5' Truck Cap with Tool Box: Best Value
TruXedo offers a well-rounded package for trucks with a 5 foot bed, delivering solid performance and durability at a price that appeals to budget-conscious buyers. The lockable drawer provides secure storage for everyday tools.
The main limitation is the smaller interior, which can quickly fill up with larger equipment. If you need extensive tool storage, consider a larger 6 foot cap.
- Compact fit for 5 foot beds
- Integrated lockable drawer
- Rust-resistant coating
Pros: Great for midsize trucks; Affordable price point; Solid build quality
Cons: Limited space for larger tools; Installation may need drilling
4. Raptor 6' Truck Cap with Tool Box: Most Durable
Raptor’s cap is engineered for the toughest jobs, with a thick steel shell and a sizable tool box that can hold up to 350 pounds. In our review it received high marks for durability and safety.
The heavy construction adds significant weight, which may affect handling and fuel consumption. If you prefer a lighter cap or lack professional installation resources, this may not be the best fit.
- Maximum thickness for impact resistance
- Large lockable compartment
- Designed for heavy-duty use
Pros: Very durable; High load capacity
Cons: Very heavy; Installation can be challenging
5. Gus 5' Truck Cap with Tool Box: Budget Friendly
Gus provides an entry-level option that meets the basic needs of a truck owner who wants a protective cap with a modest tool compartment. The aluminum construction keeps the weight low and the price down.
Because it uses thinner aluminum, the cap is less resistant to impacts and the tool box holds fewer pounds. Users who need heavy-duty protection or large tool storage should look beyond this budget model.
- Cost-effective aluminum build
- Simple lockable box
- Fits most 5 foot trucks
Pros: Affordable; Lightweight
Cons: Lower durability than steel caps; Tool box smaller
6. Pro Series 6' Truck Cap with Tool Box: Compact Choice
Pro Series offers a sleek, low-profile cap that blends into the truck’s silhouette while still providing a lockable tool compartment. The pre-drilled holes simplify the mounting process.
The design prioritizes aesthetics over bulk, resulting in a tighter interior that may not accommodate larger equipment. If you rely on a wide range of accessories, this cap could feel restrictive.
- Streamlined profile
- Integrated lock
- Factory pre-drilled holes
Pros: Sleek look; Moderate weight
Cons: Limited interior space; May not fit all aftermarket accessories
7. Miller 5' Truck Cap with Tool Box: Good for Light Use
Miller’s cap provides a straightforward steel solution for owners who need a modest amount of tool storage and prefer a simple, no‑frills design. The lockable compartment meets basic security expectations.
Its limited capacity and added weight make it less suitable for trucks that regularly carry heavy or bulky tools. Those looking for spacious storage or a lighter cap should consider other options.
- Basic steel construction
- Lockable compartment
- Designed for light duty
Pros: Robust steel; Simple design
Cons: Small storage; Heavier than aluminum options
Frequently Asked Questions
Can I install the truck cap myself?
Most caps come with pre‑drilled mounting holes and hardware, allowing DIY installation for owners with basic tools. However, steel caps may require additional sealing work, so professional installation is recommended for optimal fit and safety.
Will the built‑in tool box fit my standard tools?
Tool box capacities range from 150 to 350 pounds, and most owners report that common hand tools, power tool cases and small parts fit comfortably. Larger equipment may exceed the limits of smaller caps.
Do these caps affect fuel economy?
Adding a cap adds weight and changes aerodynamics, which can slightly reduce fuel efficiency. Lighter aluminum caps have a smaller impact than heavy steel models.
Are the caps compatible with all truck makes and models?
The caps are sized for 5 foot and 6 foot bed trucks. Compatibility lists from manufacturers specify which makes and model years fit without modifications. Check the spec sheet for your exact vehicle.
How do I maintain the finish on a steel truck cap?
Regular cleaning with mild soap and water, followed by a rust‑inhibiting wax or sealant, helps preserve the finish. Inspect seams and locks periodically for corrosion and reapply protective coating as needed.
Our Verdict
Our top pick is the B&W 6′ Truck Cap with Tool Box, offering the best blend of durability, security and tool capacity. The runner‑up SnugTop 6′ Truck Cap with Tool Box provides a lighter, more affordable alternative without sacrificing key features.
