2003 GMC Sierra 1500 Folding & Tri-Fold Tonneau Covers

Folding Tonneau Covers

Protect your truck’s cargo from moisture and thieves with a premium folding tonneau cover from RealTruck®. We carry a wide assortment of folding tonneau covers for all makes and models, including soft-folding, hard-folding, tri-fold, and more. 

For more information, check out our folding tonneau cover comparisons on RealSource, linked below.

• Extang Trifecta ALX vs Gator SFX Tri-Fold

• Extang Solid Fold 2.0 vs BAKFlip MX4

• BAKFlip MX4 vs BAKFlip F1 Cover Comparison

For help ordering,reach out to our knowledgeable sales team, who are available seven days a week.

Why Do You Need a Folding Tonneau Cover?

You’ve likely seen folding bed covers on several pickup trucks, but what’s the point? Folding tonneau covers are handy additions to every pickup, especially for those who rarely use the bed for hauling tools, building supplies, and oversized cargo. 

For items prone to water damage, like luggage, furniture, and groceries, a folding tonneau cover offers exceptional moisture and weather resistance, keeping your valuables clean and dry. Folding tonneau covers also offer security against thieves, protecting your valuable cargo while you leave your pickup unattended.

Most folding tonneau covers also offer simple, no-drill installation and ultra-low-profile designs, sitting practically flush with your pickup’s bed rails for maximum aesthetic impact.

Styles of Folding Tonneau Covers

Folding tonneau covers are offered in Hard-Folding and Soft-Folding variations. Most of our truck bed covers are tri-fold, featuring three panels, though some options come in quad-fold configurations. Check out our top styles below. 

Soft-Folding

Soft-folding tonneau covers are constructed from a large sheet of marine-grade vinyl or canvas material stretched over an alloy frame. Utilizing a series of hinges, these bed covers allow you to fold the cover towards the bulkhead for up to ⅔ bed access. However, removal and installation are quick and easy if you need access to the entire bed. Soft-folding tonneau covers typically offer a tool-free installation in under 30 minutes.

RealTruck Expert Pick: Tonno Pro TonnoFold Tri-Fold Tonneau Cover

Why we love it: 

• Heavy-duty, double-sided, marine-grade vinyl construction

• Sleek, leather-grained black finish

• Durable and lightweight aluminum frame

• Aluminum components are powder-coated black for a sleek appearance and added corrosion resistance

• Intuitive tri-fold design

• Simple tool-free installation

• Integrated perimeter seals prevent moisture intrusion

• Limited lifetime warranty

Hard-Folding

For added security, consider a hard-folding tonneau cover. Instead of using a vinyl or canvas-based material as the primary cover, hard-folding bed covers employ hinged, sturdy aluminum or composite panels for the main structure. These bed covers are also quick and easy to install. However, many offer full bed access and can be folded against the rear window, such as the BAKFlip MX4 and UnderCover Flex.

RealTruck Expert Pick: BAKFlip MX4 Tonneau Cover

Why we love it: 

• Heavy-duty aluminum panels and rails

• Matte black exterior finish adds a subtle, stylish accent

• The refined latch system reduces cable fatigue for smooth, effortless operation

• Cover folds toward the cab for easy 100 percent bed access

• Weather-resistant rubber seals and plastic end caps for superior protection

• Extra-strong prop rods firmly secure the cover in the open position

• Premium rubber bumpers protect the cab from contact with the cover

• Integrated drain tubes ensure cargo stays dry

• Redesigned rail and clamp design combine for an easier-than-ever, no-drill installation

• Supports more than 400 lbs. of weight (evenly distributed)

• Limited 5-year warranty