Tonneau Covers — Price Comparison

Tonneau Covers for 2006 GMC Sierra 2500HD

A tonneau cover adds lockable, weather-resistant storage to a 2006 GMC Sierra 2500HD and cleans up aerodynamics at highway speed. The spectrum runs from sub-$300 soft roll-ups to $1,000+ hard retractables, and the right pick depends on how often you haul tall loads versus how much security you want.

We compared 3 offers across major retailers for the GMT800 platform (2001–2006 GMT800). Prices range from $279.99 to $1099.99 as of the last update.

Best picks

• Best overall: A hard folding or rolling cover — real security for tools and gear, full-bed access when folded, and better weather sealing than soft covers.
• Best budget: A soft roll-up. It keeps rain and prying eyes off your cargo and installs in 30 minutes with clamps — just don't expect it to stop a determined thief.

What to look for

• Exact bed-length match is mandatory — covers don't have tolerance for the wrong size.
• Check rail compatibility if your truck has a factory bed-rail or cargo-management system.
• Hard covers add real weight; make sure you can still load with the cover stowed.

Truck-specific note: measure your bed from inside the bulkhead to inside the tailgate — marketing names like "6.5-foot bed" round off the true measurement, and tonneau covers have zero tolerance for the wrong size.

Fitment note

Verified for 2006 GMC Sierra 2500HD (GMT800). Fits 2001–2006 GMT800 generation unless trim-specific exclusions apply. Confirm trim and option codes before ordering.

Prices are affiliate-linked estimates. Confirm current pricing at the merchant before purchase.