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LOMAX GMC Sierra 2500 Tonneau Covers

LOMAX truck bed covers for the GMC Sierra 2500

LOMAX truck bed covers for the GMC Sierra 2500 cover the bed to keep cargo dry, secure, and out of sight. LOMAX builds hard folding tri-fold covers with matte black panels that sit low and flush in the bed for a clean, factory look.

The LOMAX range is three hard tri-folds: the Low-Profile, the Stance Low-Profile, and the Professional Series Low-Profile. Top picks: Low-Profile as the entry hard fold, Stance for a mid-tier upgrade, and Professional Series for the premium finish.

Every LOMAX cover is sold by fitment for the GMC Sierra 2500, so confirm your bed length and trim before ordering or let us verify it for free. Ships with the manufacturer warranty and free shipping.

Choosing your LOMAX cover

  • Entry hard foldLow-Profile, the standard LOMAX matte tri-fold.
  • Mid-tierStance Low-Profile, an upgraded finish and rail set.
  • PremiumProfessional Series Low-Profile, the top LOMAX tri-fold.
  • Why LOMAXAll three sit low and flush in the bed for a factory-clean look when closed.

Key capabilities

  • Full LOMAX lineupThe LOMAX range is three hard tri-folds: the Low-Profile, the Stance Low-Profile, and the Professional Series Low-Profile.
  • Fitment-verifiedEvery product on this page is filtered to the vehicle, and we confirm the exact SKU before you buy.
  • No-drill installsMost install in 15 to 30 minutes with hand tools, no drilling and no permanent changes to the bed.
  • Manufacturer warrantyBacked by the LOMAX factory warranty, honored through Truck Bed Barn.

Ideal for

  • GMC Sierra 2500 owners shopping the LOMAX lineup specifically
  • Drivers weighing LOMAX models by price, bed access, and weather sealing
  • Anyone matching the right LOMAX cover to their GMC Sierra 2500 bed length and trim
  • Buyers who want fitment confirmed before they order

Shop by style

Compare the lineup

ProductStyleMaterialLockingStand-out
LOMAX Low-Profile Hard trifold Matte ABS panels Tailgate latch Entry hard fold
LOMAX Stance Low-Profile Hard trifold Matte ABS panels Tailgate latch Mid-tier finish
LOMAX Professional Series Low-Profile Hard trifold Matte ABS panels Tailgate latch Premium finish

Related collections

Why shop with Truck Bed Barn

  • Free shippingOn every truck bed cover and accessory in the catalog.
  • Free fitment checkText or call before you buy. We verify fitment to your exact truck.
  • Fast shipping1 to 7 business days from manufacturer warehouses across the US.
  • Real person on the phoneCall or text and reach someone who actually knows these covers, not a call center.
  • Full manufacturer warrantyBacked by each brand's factory warranty, honored through Truck Bed Barn.

Frequently asked questions

What is the best LOMAX cover for a GMC Sierra 2500?
It depends on how you use the bed. Low-Profile as the entry hard fold, Stance for a mid-tier upgrade, and Professional Series for the premium finish. For a one-piece or paint-matched look, check the full lineup below. We verify fitment to your exact GMC Sierra 2500 before you buy.
Does this page show only LOMAX covers?
Yes. This page is filtered to LOMAX covers that fit the GMC Sierra 2500. To compare across brands, see our full Tonneau Covers collection linked below.
Is a LOMAX cover hard or soft?
LOMAX covers are hard folding tri-folds. They use matte black ABS panels that fold in three sections and latch at the tailgate. They sit low and flush in the bed, which gives a cleaner look than a soft fold and seals better against weather.
Does LOMAX make a cover that fits my exact GMC Sierra 2500?
Every LOMAX cover is listed by year, bed length, and trim. Send those details and we confirm the SKU before you buy. If something arrives that does not fit, we cover the return.
What warranty comes with LOMAX covers?
Every LOMAX cover carries the manufacturer warranty, honored through Truck Bed Barn. Warranty length varies by model, so check the product page for the specific cover, or ask us and we confirm it.