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How to Measure Truck Bed

Showcasing maximum protection and an innovative low profile design, the LOMAX® Professional Series does not compromise. Tough diamond plate aluminum panels along with a water-shedding construction and reinforced waterproof hinges protect your gear and prevent elements from entering the truck box. Easy to install or remove, this hard tonneau cover emphasizes a one-person operation. Additional extruded aluminum channels under each panel increase strength to make the LOMAX® Professional Series stronger with minimal added weight. Limited metal-on-metal contact, a ten point automatic locking system and flexible rubber seals combine to reduce noise and vibration. LOMAX® Professional Series is committed to quality and durability.

California Residents: Prop 65 Warning

Automatic Dual Locking System

Automatic Dual Locking System

Release both locks simultaneously by pulling the cord from either side. Heavy duty nylon latches provide 1/2 in. surface for solid positive engagement.

Automatic Ten Point Locking System

Automatic Ten Point Locking System

Unfolding each panel locks the cover automatically at ten points with heavy duty reinforced nylon components.

Weather Tight Tonneau Seal

Weathertight Seal

Water shedding design and reinforced vinyl coated hinges direct water away from the box without drains or gutters. The hard tri-fold cover overlaps the box rails with a continuous seal down the entire length of the side rails, preventing dirt, snow, rain and dust from entering the pickup bed.

Incorporated Storage Clips

Incorporated Storage Clips

Sleek, retractable storage clips hold truck bed cover in place and rigid standoffs with vinyl caps keep panels appropriately spaced in the folded position. No adjustments needed.

Strong Tonneau Cover

Strong, Yet Light in Weight

LOMAX® Professional Series includes additional aluminum channels under each panel. The extruded aluminum channels support the panels to hold up to 500 pounds of evenly dispersed weight, while weighing approximately 60 pounds for an impressive strength-to-weight ratio.

Simple Tonneau Removal

Simple to Remove and Reinstall

With cover open and storage clips fastened, on front panel pull latch and disengage hooks by sliding cover back, then lift for removal. To reinstall, engage hooks by sliding the tonneau cover forward and place into retainment brackets. Cover locks automatically in place.

Tight Bite Clamps


Installs in minutes without the need to drill into your truck box. Specifically cut 'teeth' maintain superior grip and exceptional strength.

Average Customer Rating: star star star star star (6 reviews)

Submit Your Own Review

Review by: Corey - ND   star star star star star

LOMAX<sup>®</sup> Professional Series Customer Review My new Lomax Professional Series Cover adds just the right touch to my 2013 Ram pickup. The tonneau cover is built really well. I'm confident it'll hold up to the wear and tear I put my truck through. The diamond plate looks sharp on my truck, I’ve already received several compliments. It's a heavy duty cover and I have no problem opening and closing it when I need to. The quality of this cover is unmatched by others I’ve had in the past.

Review by: Jessie J.   star star star star star

LOMAX<sup>®</sup> Professional Series Customer Review I love the way my truck looks with my new Lomax Professional Series Cover on it. If I need to haul something large, it is easy to take off. I also like knowing everything in my truck bed is protected. Overall, I’m really happy with this cover and would recommend it to anyone looking for a tri-fold.

Review by: Al A. - OH   star star star star star

LOMAX<sup>®</sup> Professional Series Customer Review Bought the professional series Adarac and Lomax cover and would love to give it a review for you. Wife and I installed them on our 2016 Ram and are extremely pleased with our choice. This is our play truck to to take camping and hauling our kayaks. We've gotten 5 kayaks up on it and could maybe squeeze on a 6th. The Lomax is watertight, nothing has penetrated.

Review by: Richard S. - Ontario   star star star star star

LOMAX<sup>®</sup> Professional Series Customer Review Installed the cover yesterday on my 2019 Ram Laramie Longhorn. Fit perfect and looks great.

Review by: Jesse D. - FL   star star star star star

LOMAX<sup>®</sup> Professional Series Customer Review Absolutely love the style and functionality and simplicity of the LOMAX Professional Series hard cover. It is low-profile, tough, and can be removed from the truck and stowed in less than a minute. The diamond-plate aluminum is a very unique look and makes the truck stand out from the rest of the ordinary black covers. Love it. Installed was a piece of cake - directions are simple. Highly recommend! ACI customer service was top-notched also: Due to some business transitioning on their part, and an upcoming road-trip on my part, ACI was unable to get the tonneau cover to me in time with the standard shipping. To make up for this, they swallowed the expense of 2-day shipping (which is not cheap) in order to meet mine and their requirements. Highly recommend.

Review by: Raymond S. - OK   star star star star star

LOMAX<sup>®</sup> Professional Series Customer Review Package arrived quickly and in great shape. The parts were packaged well, so that all the parts were in perfect condition. Installation was relatively easy, although the clamps were a bit fiddly. Having a helper would have made the installation easier, but it wasn't too bad to do it by myself. The Lomax Professional Series cover looks great and fits on my Chev. Silverado CC SB Z71 perfectly. It isn't perfectly water-tight against rain, but very close! I like being able to open close the tailgate without worrying about the position of the rear of the cover. I also like the ability to remove the tonneau cover completely with minimal effort.