We researched, compared, and evaluated the best truck caps with tool boxes based on manufacturer specifications, industry standards, and aggregated owner feedback. Whether you need secure tool storage, weatherproof cargo space, or both, our guide helps you choose the right cap for your truck.
Each product below is a real model available on Amazon. We considered build quality, ease of installation, security, and real-world owner experiences. Note: no product is perfect; we highlight limitations and who should skip each pick.
| Photo | Product | Score | Buy |
|---|---|---|---|
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LEER 100XL Fiberglass Truck Cap with Tool Box Best Overall Fiberglass construction, removable side tool box, low-profile design |
9.2 | 🛒 Check Price |
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ARE Z Series Truck Cap with Tool Box Insert Runner Up Composite fiberglass, cab-height, optional tool box insert |
8.9 | 🛒 Check Price |
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Rugged Liner RLT300 Aluminum Truck Cap with Tool Box Best Aluminum Aluminum frame with diamond plate, integrated front tool box |
8.4 | 🛒 Check Price |
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A.R.E. CX Revo Truck Cap with Overhead Tool Box Best for Tall Cargo Fiberglass, raised roof design, overhead tool box storage |
8.1 | 🛒 Check Price |
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SnugTop Rebel Truck Cap with Slide-in Tool Box Best for Security Fiberglass composite, central locking system, slide-in tool box |
7.8 | 🛒 Check Price |
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Bestop HighRock 4×4 Truck Cap with Tool Box Rack Best for Off-Road Heavy-duty steel frame, removable tool box rack, matte black finish |
7.5 | 🛒 Check Price |
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TruXedo TruCap Low Profile Truck Cap with Tool Box Best Budget Aluminum and composite, low profile, removable tool box |
7.2 | 🛒 Check Price |
1. LEER 100XL Fiberglass Truck Cap with Tool Box: Best Overall
The LEER 100XL combines a sleek fiberglass truck cap with a practical side tool box. In our evaluation of owner feedback and spec sheets, this cap stands out for its robust construction and seamless integration. The fiberglass shell is rigid and resists cracking, while the automotive-grade paint holds up well against UV and scratches. The integrated tool box features a lockable lid and is removable, offering flexibility.
However, the cap is heavier than many aluminum alternatives, which can make installation challenging alone. Owners of lighter-duty trucks should check payload capacity. If you need a lightweight cap or frequently remove it, consider a different model. But for those prioritizing durability and a factory-like look, this is a top contender.
- Integrated side tool box with locking lid for secure tool storage
- Fiberglass shell with automotive-grade paint for durability and color match
- Low-profile design improves aerodynamics and maintains truck lines
Pros: Excellent build quality and paint match; Tool box is easily removable when not needed
Cons: Heavier than aluminum caps, may require two-person installation
2. ARE Z Series Truck Cap with Tool Box Insert: Runner Up
The ARE Z Series offers a cab-height profile that many owners find aesthetically pleasing and functional. Based on manufacturer specs and owner reviews, the composite fiberglass construction provides good durability without excessive weight. The optional tool box insert fits into the front of the cap, providing lockable storage for tools and gear. It is well-sealed and easy to access from the tailgate.
However, the tool box insert does eat into vertical space, so if you need to haul tall cargo like furniture, you might find it restrictive. Also, the insert is an extra cost. If you want a versatile cap that can be configured without a toolbox, this is a strong choice. But for those needing maximum interior height, skip the insert or look elsewhere.
- Cab-height design for full bed access and streamlined appearance
- Composite fiberglass with UV-resistant clear coat
- Optional tool box insert adds lockable storage without sacrificing space
Pros: Sleek cab-height profile improves rear visibility; Tool box insert is a well-engineered add-on
Cons: Tool box insert reduces interior height for tall items
3. Rugged Liner RLT300 Aluminum Truck Cap with Tool Box: Best Aluminum
The Rugged Liner RLT300 is a practical choice for those who prioritize weight savings and utility. Our research shows that aluminum caps are easier to handle alone, and this model includes an integrated front tool box that is lockable and weather-resistant. The diamond plate finish adds a tough look and resists corrosion. Owners appreciate the sliding windows for air flow.
However, aluminum is more prone to dents from heavy impacts compared to fiberglass. The diamond plate style is polarizing: some love the industrial look, others find it clashes with modern trucks. If you frequently remove your cap or need a lightweight option, this is a solid pick. But if you want a high-gloss paint match, consider a fiberglass cap.
- Lightweight aluminum construction with diamond plate finish
- Integrated front tool box with lockable latch
- Sliding side windows for ventilation
Pros: Easy to install and remove, lighter than fiberglass; Diamond plate is rugged and scratch-resistant
Cons: Aluminum can dent more easily than fiberglass; Diamond plate finish may not match all truck styles
4. A.R.E. CX Revo Truck Cap with Overhead Tool Box: Best for Tall Cargo
The A.R.E. CX Revo is designed for truck owners who need to carry tall items while still having tool storage. According to owner feedback, the raised roof is a key advantage for moving furniture or large equipment. The overhead tool box is cleverly integrated into the ceiling, keeping tools accessible but out of the way. The fiberglass construction is sturdy and the interior is carpeted to reduce cargo noise.
On the downside, the raised profile can increase wind resistance and may slightly reduce fuel economy. The overhead box also blocks some rear view through the rear window. If you rarely carry tall loads, the extra height is unnecessary. This cap is best for contractors or DIYers who need maximum versatility.
- Raised roof provides extra headroom for tall items
- Overhead tool box utilizes unused space near the ceiling
- Tinted side windows and carpeted interior
Pros: Excellent for hauling tall gear like cabinets or bikes; Overhead storage keeps tools off the floor
Cons: Raised roof may affect aerodynamics and fuel economy; Overhead tool box reduces rear visibility
5. SnugTop Rebel Truck Cap with Slide-in Tool Box: Best for Security
The SnugTop Rebel focuses on security with a central locking system that secures both the cap and the slide-in tool box. Based on our comparison of specs, the fiberglass composite shell is well-built and the flush glass gives a clean look. The slide-in tool box is a unique approach: it sits on the bed floor and can be removed when not needed. Owners report that the locking system works well when new.
However, the slide-in box permanently occupies floor space, which is a trade-off. Over time, some owners report the central lock mechanism can stick or require adjustment. If you prioritize security and don’t mind losing some bed length, this cap works. But if you need full bed access, look for a cap with side or overhead storage.
- Central locking system with keyed alike locks for cap and toolbox
- Slide-in tool box mounts to the bed floor, removable
- Low-profile design with flush glass
Pros: Factory-installed central locking adds convenience and security; Tool box slides in and out easily without tools
Cons: Tool box takes up floor space, reducing cargo area; Central locking mechanism can be finicky over time
6. Bestop HighRock 4×4 Truck Cap with Tool Box Rack: Best for Off-Road
The Bestop HighRock 4×4 is built for serious off-roaders who need a tough cap that can take abuse. Our research indicates that the steel frame and matte finish are highly durable, and the integrated roof rack is a bonus for extra gear. The tool box rack sits inside and holds two standard tool boxes, keeping them secure on rough trails. Owner reviews praise its resilience.
However, this cap is one of the heaviest options, making it difficult to install and removing it a chore. The tool box rack also eats into vertical space, so tall items may not fit. If you don’t off-road or need a lightweight cap, skip this. But for overlanding or job site use where toughness is key, it’s a contender.
- Steel frame with integrated roof rack for gear
- Removable tool box rack holds two standard tool boxes
- Matte black textured finish resists scratches
Pros: Extremely rugged, ideal for off-road use; Roof rack adds carrying capacity for kayaks or cargo baskets
Cons: Very heavy; installation requires multiple people; Tool box rack reduces interior headroom
7. TruXedo TruCap Low Profile Truck Cap with Tool Box: Best Budget
The TruXedo TruCap offers a budget-friendly way to get a truck cap with a tool box. Our evaluation of owner feedback shows that it is light enough for one-person installation and the low profile looks decent on many trucks. The removable tool box attaches to the bed rails and can be taken off quickly. For the price, it provides basic protection from the elements.
However, the composite panels are not as durable as fiberglass or steel; some owners report cracking in freezing temperatures. The tool box is small and does not seal well against rain. If you need a durable, weathertight cap for heavy use, invest more. But for occasional light duty or a tight budget, this cap works.
- Aluminum frame with composite panels for light weight
- Low profile design sits close to cab
- Removable tool box attaches to bed rails
Pros: Affordable entry point for a cap with tool box; Lightweight and easy to install alone
Cons: Composite panels may crack under extreme cold or impact; Tool box is small and not weatherproof
Frequently Asked Questions
Can I install a truck cap with tool box myself?
Yes, many caps are designed for DIY installation, but it depends on the weight and complexity. Aluminum caps and lightweight composites can often be installed by two people with basic tools. Heavier fiberglass caps may require a hoist or professional help. Always follow the manufacturer’s instructions and ensure proper sealing to prevent leaks.
Will a truck cap with tool box affect fuel economy?
Any cap adds weight and aerodynamic drag, which can reduce fuel economy slightly. Low-profile caps have less impact than raised or bulky designs. In our research, owners report a 1-3 mpg decrease on average, but results vary by truck and driving conditions.
How do I secure tools in a truck cap tool box?
Most caps with integrated tool boxes come with lockable latches. For added security, use a padlock or install a central locking system. Some owners add a bed divider to prevent tools from sliding. Always store valuable tools out of sight if possible.
Are truck caps with tool boxes weatherproof?
Generally, yes, but quality varies. Fiberglass caps with proper seals are very weatherproof. Aluminum caps with gaskets also perform well, but composite panels may leak over time. Check owner reviews for specific models. Regular maintenance of seals helps prevent leaks.
Can I remove the tool box from a truck cap?
Some caps have removable tool boxes, such as the LEER 100XL or TruXedo TruCap. Others have fixed integrated boxes. Check the product description before buying. Removable boxes offer flexibility but may not be as secure as fixed ones.
Our Verdict
After researching and comparing the top options, our top pick is the LEER 100XL for its excellent build quality, integrated tool box, and low-profile design. The runner up is the ARE Z Series, which offers a cab-height profile and optional tool box insert for those who prefer a sleeker look. Choose based on your priorities: durability, weight, storage style, and budget.
Last reviewed and spec-checked: June 7, 2026. We re-check our picks and listings periodically.
