Lomax Hard Tri-Fold Tonneau Cover | Ultra-Low Profile Design
Our hard tri-fold tonneau cover delivers the lowest profile on the market while providing maximum bed access and security. The innovative 90-degree vertical panel opening allows you to reach cargo near the cab without removing the entire cover.
Engineered with aircraft-grade aluminum panels and a flush-mount design, this cover sits less than an inch above your truck bed rails when closed. We built it to withstand extreme weather while maintaining a sleek, factory-installed appearance that complements your truck’s lines.
Hard tri-fold cover specifications
Aircraft-Grade Aluminum Construction
We manufacture every panel from aerospace-quality aluminum alloy that balances strength with lightweight performance. The material resists corrosion in saltwater environments and won’t crack in subzero temperatures like vinyl alternatives.
Our reinforced hinge system uses stainless steel pins and sealed bearings that maintain smooth operation through hundreds of open-close cycles. The panels lock together with integrated latches that create a weather-tight seal across the entire bed surface. Each cover undergoes pressure testing to ensure water resistance in heavy rain and car wash conditions.
90-Degree Vertical Panel System
Unique Opening Mechanism
The front panel opens to a full 90 degrees and locks vertically against your cab, giving you immediate access to cargo stored near the bulkhead. This design eliminates the need to fold back multiple sections when you only need to grab tools or equipment from the front third of your bed.
Both remaining panels fold independently or together, allowing you to configure the cover for different load sizes. Need to haul tall items? Fold all three panels against the cab and secure them with our integrated retention straps. The straps attach to dedicated anchor points that prevent panel movement during highway driving.
Flush-Mount Installation System
Our proprietary clamp system attaches directly to your bed rails without drilling holes or using adhesives. The aluminum clamps distribute pressure evenly and include rubber gaskets that protect your truck’s factory finish.
Installation takes 20-30 minutes with basic hand tools. We provide vehicle-specific clamp positions in the included instruction guide, and each clamp adjusts for perfect alignment with your bed rails. The cover sits completely flush when closed, maintaining ground clearance and improving aerodynamics compared to raised covers.
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Common Questions About Our Hard Tri-Fold Tonneau Cover
The front panel lifts to a full 90 degrees and locks vertically against your truck cab, held securely by gas struts. This gives you immediate access to cargo stored in the front third of your bed without folding back the remaining panels. The struts support the panel weight so you can work hands-free, and the panel releases with a simple latch mechanism when you’re ready to close it.
Yes, our hard tri-fold cover is compatible with most spray-in bedliners, drop-in liners, and bed mats. The mounting clamps are designed to accommodate liner thickness variations and still achieve a flush fit with your bed rails. We include adjustable clamp spacers for different liner configurations to ensure proper installation and weather sealing.
Absolutely. When you fold all three panels against the cab, use the included retention straps to secure them to the dedicated anchor points. These straps are rated for highway speeds and prevent panel movement during driving. This configuration gives you full bed access while maintaining the cover on your truck for quick deployment when needed.
Our hard tri-fold cover sits less than one inch above your bed rails when closed, making it one of the lowest-profile hard covers available. This flush-mount design preserves ground clearance, reduces wind resistance, and maintains your truck’s sleek appearance. The minimal height also allows the cover to fit in most parking garages and covered areas without clearance issues.
Yes, the cover features integrated locking latches at each panel connection point that secure to your bed rails. The aluminum construction resists prying and cutting attempts significantly better than soft covers. For additional security, the flush-mount design eliminates external straps or handles that could provide leverage points. We recommend using our optional <a href=”/tailgate-locks/”>tailgate lock</a> for complete bed security.
Maintenance is minimal. Wash the cover with mild soap and water as needed, and apply our seal conditioner to the rubber gaskets twice per year to maintain flexibility. The powder-coat finish doesn’t require waxing or special treatments. Inspect the hinges and latches periodically, and apply a small amount of silicone lubricant if you notice any stiffness in operation.
Yes, the entire cover detaches in under two minutes using the quick-release pins at each mounting clamp. No tools are required for removal, and the cover weighs approximately 55 pounds for easy handling. This quick-removal feature is perfect when you need to haul extremely tall cargo or install fifth-wheel equipment temporarily.