The Ultimate 2020 Ram 1500 Truck Cap Fitment Chart: Your Comprehensive Guide to a Perfect Fit

The Ultimate 2020 Ram 1500 Truck Cap Fitment Chart: Your Comprehensive Guide to a Perfect Fit Lmctruck.Guidemechanic.com

As a proud owner of a 2020 Ram 1500, you understand the blend of power, capability, and style that defines this remarkable truck. Whether you use your Ram for work, recreation, or daily driving, a truck cap can transform its utility, offering secure storage, weather protection, and even improved aerodynamics. However, finding the right truck cap isn’t as simple as picking one off the shelf. The world of truck cap fitment is nuanced, demanding precision and an understanding of your specific vehicle’s characteristics.

This isn’t just another quick guide. As an expert in automotive accessories and a professional SEO content writer, I’ve delved deep into the intricacies of truck cap compatibility. Our mission here is to provide you with the most comprehensive, in-depth, and easy-to-understand resource on 2020 Ram 1500 truck cap fitment. We’ll cut through the confusion, equipping you with the knowledge to make an informed decision and ensure your investment perfectly complements your truck. Get ready to unlock the full potential of your 2020 Ram 1500 with a cap that fits like a glove.

The Ultimate 2020 Ram 1500 Truck Cap Fitment Chart: Your Comprehensive Guide to a Perfect Fit

Understanding Your 2020 Ram 1500: The Foundation of Fitment

Before you even begin looking at truck cap models, it’s absolutely crucial to intimately know your 2020 Ram 1500. Every single dimension and feature of your truck’s bed plays a pivotal role in determining which caps will fit correctly. Skipping this foundational step is a common mistake that can lead to costly returns and immense frustration.

Bed Lengths Are Crucial: Measure Twice, Buy Once

The 2020 Ram 1500 was offered with a few distinct bed lengths, and this is arguably the most critical factor for truck cap fitment. A cap designed for a shorter bed simply won’t fit a longer one, and vice-versa. You cannot rely solely on what you think your bed length is; you must measure it accurately.

For the 2020 Ram 1500, the primary bed lengths are:

• 5-foot 7-inch (short bed): This is the most common bed length, often paired with Crew Cab models, offering a balance of passenger space and cargo utility.
• 6-foot 4-inch (long bed): Typically found on Quad Cab models, and less commonly on Crew Cabs, this bed provides significant extra cargo capacity.

Based on my experience working with countless truck owners, misidentifying bed length is the most common mistake when purchasing truck accessories. To measure your bed, use a tape measure and run it along the top rail of the bed, from the inside edge of the bulkhead (the wall closest to the cab) to the inside edge of the tailgate. Do not measure the exterior, and ensure your tailgate is closed. Record your measurement in feet and inches. This precise figure will be your guide.

RamBox vs. Standard Bed: A Game-Changer for Compatibility

One of the Ram 1500’s distinctive features is the optional RamBox Cargo Management System. This innovative system integrates lockable, lit, and drainable storage compartments into the side rails of the truck bed. While incredibly practical for everyday use, the RamBox significantly impacts truck cap fitment.

Standard truck caps are designed to sit flush on the flat top rails of a conventional truck bed. The RamBox system alters these rail dimensions and the overall bed width, meaning a standard cap will not fit a RamBox-equipped truck. If your 2020 Ram 1500 has RamBox, you will need a specialized truck cap specifically designed to accommodate it. Pro tips from us: Always confirm RamBox compatibility with the cap manufacturer or dealer. Some manufacturers offer specific RamBox-compatible models, while others may not offer any solution. Failure to check this will inevitably lead to an incompatible purchase.

Cab Styles (Quad Cab vs. Crew Cab): Indirect Influence

While the cab style (Quad Cab or Crew Cab) doesn’t directly dictate truck cap fitment in terms of bed dimensions, it’s essential for accurately identifying your truck model to a dealer or when consulting fitment charts. Often, specific bed lengths are more commonly associated with certain cab configurations. For example, the 5’7" bed is almost exclusively paired with the Crew Cab, while the 6’4" bed is more common on Quad Cabs. Knowing your full truck configuration ensures you communicate the correct information to avoid any potential misunderstandings.

The Anatomy of a Truck Cap: What Makes a Good Fit?

Understanding the physical characteristics of a truck cap is just as important as knowing your truck’s dimensions. A good fit goes beyond just length and width; it involves material, design, and how the cap integrates with your Ram 1500.

Material Considerations: Durability Meets Design

Truck caps are primarily made from two materials: fiberglass and aluminum. Each has its distinct advantages and disadvantages.

• Fiberglass Caps: These are the most popular choice for modern trucks, including the 2020 Ram 1500. Fiberglass allows for highly sculpted, aerodynamic designs that can be color-matched to your truck’s paint, creating a seamless, factory-installed look. They are generally more robust and offer better insulation than aluminum. However, they tend to be heavier and more expensive. Based on my experience, fiberglass caps offer superior aesthetics and a more integrated feel with the Ram 1500’s sophisticated lines.
• Aluminum Caps: While less common for lifestyle trucks like the Ram 1500, aluminum caps are known for their durability, lighter weight, and often lower cost. They are typically favored for work trucks due to their ruggedness and utility-focused designs. Their appearance is more utilitarian and less refined than fiberglass.

Design & Aerodynamics: More Than Just Looks

The design of a truck cap affects more than just its visual appeal. Modern truck caps are engineered with aerodynamics in mind. A well-designed cap can actually reduce drag by smoothing the airflow over the truck bed, potentially leading to a slight improvement in fuel economy, especially on highway drives. Conversely, a poorly designed or ill-fitting cap can increase drag. Look for caps that feature a sloped front to match the cab’s profile and smooth, integrated lines.

Weight & Load Capacity: What Can Your Cap Handle?

Consider the weight of the cap itself and its potential load capacity, especially if you plan to install a roof rack. Fiberglass caps can weigh anywhere from 150 to 250 pounds or more, which will add to your truck’s overall curb weight and slightly impact payload capacity. The cap’s roof is also designed to hold a certain amount of weight. If you intend to carry kayaks, bikes, or other gear on a roof rack, ensure the cap you choose is structurally capable of supporting that additional load. Always check the manufacturer’s specifications for roof load limits.

Security Features: Protecting Your Valuables

A primary reason for investing in a truck cap is enhanced security. Look for caps with robust locking mechanisms, such as T-handles with automotive-grade locks. Many premium caps offer integration with your truck’s power locking system, allowing you to lock and unlock the cap with your existing key fob. Window options also play a role in security; solid side windows or heavily tinted glass can deter prying eyes.

Navigating the 2020 Ram 1500 Truck Cap Fitment Chart: Key Manufacturers and Models

With a clear understanding of your truck and cap characteristics, it’s time to explore the leading manufacturers and their offerings for the 2020 Ram 1500. While a universal "fitment chart" doesn’t exist in one consolidated place, we can break down the major players and their popular models, helping you build your own mental compatibility guide.

General Principles of Fitment Charts

When you visit a manufacturer’s website or speak to a dealer, they will typically ask for your truck’s:

1. Year: (2020 in our case)
2. Make: (Ram)
3. Model: (1500)
4. Cab Style: (Quad Cab, Crew Cab)
5. Bed Length: (5’7" or 6’4")
6. RamBox Option: (Yes or No)

This information allows them to precisely identify compatible caps. Always double-check their recommendations against your own measurements.

Major Truck Cap Manufacturers

Several reputable companies dominate the truck cap market, each offering a range of models that vary in features, aesthetics, and price points.

Leer

Leer is one of the most recognized names in truck caps, known for its quality construction, appealing designs, and extensive feature options. They offer a premium product that integrates beautifully with the Ram 1500.

• Leer 100R: This is Leer’s entry-level fiberglass cap, offering a clean, cab-high design. It provides basic weather protection and security. It’s a solid choice for those seeking functionality without excessive frills. Available for both 5’7" and 6’4" beds (standard, not RamBox).
• Leer 100XR: A step up from the 100R, the 100XR includes side windows that slide open for ventilation and a frameless curved glass rear door, enhancing aesthetics. This model offers a good balance of features and value. It’s a popular choice for 2020 Ram 1500 owners. Compatible with both bed lengths (standard).
• Leer 100XQ: Considered one of Leer’s flagship models, the 100XQ is designed for a seamless, SUV-like appearance. It features a frameless rear door, flush-mounted side windows, and often comes with premium interior finishes. Based on my experience, the 100XQ provides the most integrated and luxurious look for the Ram 1500. Available for both standard bed lengths.
• Leer 180: This cap offers a higher roofline than the cab-high models, providing increased cargo volume. Ideal for those who need extra vertical space for gear or taller items. It maintains Leer’s quality construction. Compatible with both standard bed lengths.
• Leer 122: Leer’s highest cap, the 122 offers maximum cargo capacity with a dramatically raised roof. It’s often chosen for utility, camping, or carrying very bulky items. Available for both standard bed lengths.

RamBox Compatibility for Leer: Leer does offer specific RamBox-compatible versions for some of their popular models (e.g., 100R, 100XQ). These caps are designed with special rail configurations to fit around the RamBox compartments. Always specify if you have RamBox when inquiring about Leer caps.

ARE (Accessory Research Engineering)

ARE is another industry leader, providing durable and stylish truck caps that are highly regarded for their fit and finish. They also offer a wide range of models to suit different needs and budgets.

• ARE V-Series: Similar to Leer’s 100R, the V-Series is ARE’s classic cab-high cap, offering reliable weather protection and security. It’s a workhorse model known for its durability. Available for 2020 Ram 1500 standard beds (5’7" and 6’4").
• ARE MX-Series: This cap features a mid-rise roofline, providing more interior height than a cab-high cap while maintaining a sleek appearance. It’s an excellent compromise between extra space and aesthetics. A popular choice for a variety of uses. Compatible with both standard bed lengths.
• ARE Z-Series: The Z-Series is ARE’s premium, SUV-style cap, much like Leer’s 100XQ. It boasts frameless windows, a sophisticated rear door, and a painted-to-match finish for a factory look. Pro tips: ARE’s Z-Series is often lauded for its seamless integration and high-end feel on the Ram 1500. Available for both standard bed lengths.
• ARE CX Revo: This is a top-tier offering from ARE, featuring advanced styling, frameless components, and often standard amenities like interior headliners and LED lighting. It represents the pinnacle of fiberglass cap design and functionality. Compatible with both standard bed lengths.

RamBox Compatibility for ARE: ARE also manufactures specific RamBox-compatible versions for many of their popular fiberglass models (e.g., V-Series, Z-Series). These caps feature a specialized design to clear the RamBox storage units. As with Leer, always confirm RamBox compatibility.

Snugtop

Snugtop is known for its distinctive designs and high-quality construction, often with a focus on sportier, more integrated aesthetics. They are a premium brand that offers excellent options for the 2020 Ram 1500.

• Snugtop Rebel: This is a popular cab-high model that offers a sleek, contoured design with an emphasis on a perfect fit. It features a recessed LED third brake light and a unique door handle. Compatible with 2020 Ram 1500 standard beds (5’7" and 6’4").
• Snugtop Supersport: The Supersport takes design integration to the next level with its flush-mounted side windows and a seamless, automotive-grade finish. It’s an excellent choice for those prioritizing aesthetics and a clean look. Available for both standard bed lengths.
• Snugtop XTR: Featuring a unique, integrated sport utility rack system, the XTR is designed for adventure. The rack is built directly into the cap’s roof, providing a low-profile yet robust solution for carrying gear. Common mistakes to avoid: assuming all premium caps are the same; Snugtop often stands out with unique design elements like the XTR’s integrated rack. Compatible with both standard bed lengths.

RamBox Compatibility for Snugtop: Snugtop generally offers RamBox-compatible versions for their popular models. Their engineering ensures a precise fit even with the unique dimensions of the RamBox system. Again, always verify this specific requirement.

Other Notable Brands

While Leer, ARE, and Snugtop are the major players for fiberglass caps, other brands like ATC (Active Truck Covers) and Raider also offer quality options. Their product lines often mirror those of the larger manufacturers, providing cab-high, mid-rise, and high-rise options for the 2020 Ram 1500. Always inquire about their specific fitment for your truck’s bed length and RamBox status.

Creating Your Own "Fitment Chart" Mentally

To summarize, when considering a truck cap for your 2020 Ram 1500:

1. Identify your bed length: 5’7" or 6’4".
2. Determine RamBox status: Yes or No.
3. Choose your preferred cap style: Cab-high, mid-rise, or high-rise.
4. Select a manufacturer: Leer, ARE, Snugtop, etc.
5. Match the model to your truck’s specs and desired features.

This systematic approach will significantly narrow down your options and lead you to the perfect cap.

Beyond Basic Fitment: Features and Customizations for Your Ram 1500

Once you’ve confirmed the basic fitment, the fun of customization begins. Modern truck caps offer an array of features that can enhance utility, convenience, and comfort.

Window Options

• Sliding Windows: Allow for ventilation, crucial for pets or airflow in the bed. Many come with screens.
• Fixed Windows: Offer a cleaner look but no ventilation.
• Vented Windows: Often found on higher-end models, these allow airflow without fully opening, great for dust control.
• Pet Screens: Essential if you frequently transport animals, preventing them from jumping out while allowing fresh air.
• Solid Sides: For maximum security and a commercial look, solid fiberglass or aluminum side panels replace windows.

Interior Lighting

Many caps come with basic battery-powered LED dome lights. However, upgrading to a wired LED strip light, connected to your truck’s power, provides much better illumination and convenience. Some premium caps offer automatic on/off features with the rear door.

Roof Racks

If you’re an outdoor enthusiast, a roof rack is a game-changer. Options range from basic crossbars for light loads to heavy-duty racks designed for tents, kayaks, or ladders. Ensure the cap’s structure is rated for the weight you intend to carry.

Interior Liners

A carpeted headliner not only provides a finished look but also offers insulation, reduces condensation, and helps dampen noise. It’s a highly recommended upgrade for most users.

Power Locks & Keyless Entry

For ultimate convenience, many premium caps can be wired to integrate with your Ram 1500’s central locking system. This means you can lock and unlock your cap with your truck’s existing key fob, eliminating the need for separate keys.

Toolboxes & Storage Solutions

Some cap manufacturers offer integrated toolboxes or shelving systems, particularly in mid-rise or high-rise models, which can be invaluable for organizing tools or gear.

The Installation Process: What to Expect

Even with the perfect cap selected, proper installation is key to its functionality, security, and longevity.

DIY vs. Professional Installation

• DIY: Possible for those with mechanical aptitude and the right tools. It involves lifting a heavy, awkward object onto your truck, securing clamps, and wiring lights/locks. This can save money but carries risks of damage or improper sealing.
• Professional Installation: Highly recommended. Dealers have specialized equipment for lifting and positioning the cap, experienced technicians for precise clamping and wiring, and the expertise to ensure a watertight seal. Based on my experience, a professional installation ensures peace of mind, avoids potential leaks, and guarantees all features, like power locks, function correctly.

Key Installation Steps (Brief Overview)

1. Bed Preparation: The truck bed rails are thoroughly cleaned to ensure a proper seal.
2. Gasket Application: A foam or rubber gasket is applied along the cap’s bottom edge to create a watertight barrier between the cap and the truck bed.
3. Positioning: The cap is carefully lowered onto the truck bed, ensuring it’s centered and aligned.
4. Clamping: Specialized clamps secure the cap to the truck bed rails. These must be tightened correctly – too loose, and the cap can shift; too tight, and you can damage the cap or bed rails.
5. Wiring: If the cap has interior lights, a third brake light, or power locks, wiring connections are made to the truck’s electrical system.
6. Testing: All features are tested, and the cap’s seal is checked for any potential leaks.

Common Mistakes During Installation

• Overtightening Clamps: Can warp the cap or damage the bed rails.
• Improper Sealing: Leads to water leaks, potentially damaging cargo.
• Wiring Issues: Incorrect connections can cause electrical shorts or non-functional features.
• Misalignment: An off-center cap looks bad and can compromise the seal.

Maintenance and Longevity of Your Truck Cap

A truck cap is an investment, and like your Ram 1500, it requires proper care to ensure its longevity and continued performance.

Regular Cleaning

Just like your truck’s paint, fiberglass caps benefit from regular washing and waxing. Use automotive-grade soaps and waxes to protect the finish from UV rays and environmental contaminants. Pay attention to windows, cleaning them with appropriate glass cleaner to maintain visibility.

Seal Checks

Periodically inspect the seal between the cap and your truck bed. Over time, gaskets can compress or degrade, potentially leading to leaks. Look for any gaps or signs of water intrusion, especially after heavy rain. Replacing worn-out seals is a simple maintenance task that prevents bigger problems.

Hardware Inspection

Check all clamps, hinges, and locks regularly. Ensure clamps are still snug (without overtightening), hinges operate smoothly, and locks are lubricated and functioning correctly. Loose hardware can lead to rattles, cap movement, or security breaches.

UV Protection

The sun’s UV rays can fade paint and degrade plastics and rubber seals. Using UV protectants on rubber components and regularly waxing fiberglass surfaces will extend their life and maintain their appearance.

Making the Right Choice: A Step-by-Step Decision Guide

Bringing it all together, here’s a concise guide to help you confidently choose the perfect truck cap for your 2020 Ram 1500:

1. Identify Your Truck’s Exact Specifications: Measure your bed length (5’7" or 6’4"). Confirm if you have the RamBox Cargo Management System. Note your cab style (Quad Cab or Crew Cab). For detailed specifications of your 2020 Ram 1500, you can always refer to the official Ram Trucks website.
2. Determine Your Primary Use: Will the cap be for work, recreational gear, camping, or just secure storage? This will guide your choice of cap height, material, and features.
3. Set a Realistic Budget: Truck caps range widely in price, from a few hundred dollars for basic aluminum models to several thousand for fully loaded premium fiberglass caps.
4. Research Manufacturers and Models: Based on your needs and budget, explore Leer, ARE, Snugtop, and others. Look at their specific models that fit your Ram 1500’s bed length and RamBox status.
5. Read Reviews and Ask for Recommendations: Online forums, dealer reviews, and recommendations from fellow Ram owners can provide valuable real-world insights into cap quality, durability, and customer service.
6. Verify Fitment with a Reputable Dealer: Always consult with an authorized truck cap dealer. They have the most up-to-date fitment charts and expertise to ensure you get the exact cap for your 2020 Ram 1500.
7. Consider Installation: Factor in whether you’ll DIY or opt for professional installation, and budget accordingly.

Conclusion

Selecting the ideal truck cap for your 2020 Ram 1500 is a significant decision that enhances your truck’s functionality and aesthetic appeal. By meticulously understanding your vehicle’s specifications—especially bed length and RamBox status—and familiarizing yourself with the offerings from leading manufacturers like Leer, ARE, and Snugtop, you’re well on your way to a perfect match.

Remember, a proper fit isn’t just about looks; it’s about security, weather protection, and maximizing your truck’s utility for years to come. We’ve armed you with comprehensive knowledge, from measuring your bed to navigating the nuances of different cap models and features. With this guide, you’re now equipped to confidently choose a cap that integrates seamlessly with your 2020 Ram 1500, transforming it into an even more versatile and capable machine.

Don’t settle for "good enough" when it comes to your Ram. Invest the time in research, and you’ll enjoy the perfect fit and function that only a well-chosen truck cap can provide. For more details on enhancing your truck’s utility, explore our guide on . If you’re considering other modifications, our article on might be helpful. Happy capping!