Rough Country Bed Cap T-Slot Crossbars

Universal Fit for Rough Country Bed Caps with T-Slot Rails

Expand your bed cap's cargo potential. Built tough. Mounts clean. Ready for anything.

Take your Rough Country bed cap to the next level with this heavy-duty T-Slot Crossbar system. Engineered to integrate seamlessly with compatible T-slot rails, these crossbars give you a clean, factory-style mounting platform for rooftop tents, cargo boxes, kayaks, bikes, recovery gear, and just about any other accessory your work or adventure demands.

Expand Your Bed Cap's Cargo Potential

Upgrade your Rough Country bed cap with a versatile crossbar system designed to create additional mounting space for gear, equipment, and adventure-ready accessories. Whether you're hauling work supplies, weekend toys, or overland essentials, these crossbars help you maximize every inch of your truck's cargo-carrying capability.

Built for Strength and Reliability

Constructed from durable, corrosion-resistant materials, these heavy-duty crossbars are engineered to withstand harsh weather, demanding job sites, and rugged off-road conditions. With a 600 lb static load rating and a 300 lb dynamic load rating, they're ready to support everything from full overland setups to rooftop tents with confidence.

Seamless T-Slot Integration

Designed to work directly with compatible T-slot rail systems, these crossbars deliver a clean, low-profile appearance while providing a rock-solid mounting platform for a wide range of accessories. The integrated design maintains a factory-style look — no awkward brackets, no improvised hardware, no compromise on aesthetics.

Accessory-Ready Design

Featuring a built-in 5/16-inch (8mm) T-slot channel, these crossbars make it easy to mount cargo baskets, bike racks, kayak carriers, recovery equipment, rooftop tents, and any other T-slot-compatible accessories. Create a customized setup that adapts to your workday, your weekend getaway, or your next overland expedition — and reconfigure on the fly as your needs change.

Optimized Clearance for Added Functionality

The 3.25-inch raised profile provides ample clearance between your bed cap and mounted gear, making it easier to fit larger accessories and improving overall usability across every kind of build.

Flexible Fitment for Multiple Applications

The durable 42-inch crossbar design is compatible with T-slot rail systems featuring mounting widths from 29.75" to 42.75", giving you broad compatibility across a wide range of bed cap configurations.

Quick and Easy Installation

Engineered for a straightforward setup, these crossbars mount directly to compatible T-slot rails with no cutting, drilling, or complicated modifications required. Bolt them into place and get back to what matters — the work or the adventure ahead.

Features 

Key Features

• Seamless T-Slot Integration — Engineered to mount directly to existing T-slot rails, delivering a clean, low-profile, factory-installed look.
• Expanded Cargo Versatility — Solid foundation for rooftop gear, cargo carriers, bike racks, kayak mounts, and adventure accessories.
• Designed for Rough Country Bed Caps — Fully compatible with Rough Country bed caps and toppers for a hassle-free upgrade.
• Heavy-Duty Load Capacity — Rated for 600 lbs static / 300 lbs dynamic, ready for rooftop tents, recovery gear, and full overland loads.
• Optimized Accessory Clearance — 3.25" raised design provides space between the cap and mounted gear for better fitment and functionality.
• Accessory-Ready T-Slot Channel — Integrated 5/16" (8mm) T-slot allows secure attachment of a wide variety of racks, mounts, and accessories.
• 42" Crossbar Length — Durable, streamlined profile delivers a stable mounting platform without sacrificing style.
• Flexible Rail Compatibility — Fits T-slot rail systems with mounting widths from 29.75" to 42.75".

Specifications

Construction

• Material: Durable, Corrosion-Resistant Alloy
• Profile Height: 3.25"
• Crossbar Length: 42"

Load Capacity

• Static Load Rating: 600 lbs
• Dynamic Load Rating: 300 lbs

Compatibility

• T-Slot Channel: 5/16" (8mm)
• Compatible Rail Widths: 29.75" to 42.75"
• Designed For: Rough Country Bed Caps with T-Slot Rails

Installation

• Mounting Style: Bolt-On to Existing T-Slot Rails
• Tools Required: Basic Hand Tools
• Cutting or Drilling Required: No