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Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
Tectonic™ Dual-Motion Folding Truck Bed Cover
60 Days Easy Returns
Free Shipping in the U.S. 48
Lifetime Warranty
Made in the USA

Tectonic™ Dual-Motion Tri-Fold Truck Bed Cover

$2,499

Break free from the limits of every bed cover you’ve ever owned. Introducing Tectonic by Peragon®–the first ever, dual-motion truck bed cover. 26 years in the making, Tectonic is a solid aluminum truck bed cover with no-limits access, haul-on-top capabilities, and a lifetime warranty.

We wanted a bed cover made for more.

Watch Video

Introducing Tectonic

Game-changing strength & access

Unrivaled security

Keep your stuff safe

No cheap hinges, fabric or lightweight sandwich panels here. We use welded solid sheet aluminum with structural support members, brought together with hard anodized machined aluminum hinges and components.

  • Two robust locks, one key
  • No-tamper hinges and exterior components
  • Welded .080 sheet aluminum

Keep nature outside

Ready for any weather

A belt-and-suspenders approach to weather protection deploys multiple layers of sealing, creating a robust barrier to the elements, ensuring your cargo stays dry.

  • Thick fin and bulb EPDM perimeter seals
  • Additional rubber rail seal for redundancy
  • Exterior draining gutters under panel hinge points
  • Rubber lock caps keep locks free from rain and ice

No-limits access

Nothing out of reach

Tectonic folds in the front and back for quick and easy access. It slides fore and aft just as easily, allowing unhindered access to items stowed anywhere in the bed.

  • No part of your bed inaccessible
  • Easily translate fore and aft
  • Locks in multiple positions

Use your whole bed

Zero lost bed space

Pack your bed full to the brim, and hit the road knowing that you can access everything, everywhere.

Adapts for large cargo

Haul large items

Built to carry

No Gear Left Behind

Never run out of space again. When you've used every inch of your bed, Tectonic is built to carry on top.

  • 400 lb. hauling capacity (on-road rating)
  • Machined aluminum tie-downs
  • Bed-liner rubberized finish

Second to none

A finish for the ages

First powdercoated and then finished with a spray-on bedliner coating,
Tectonic has the most durable bed cover finish Peragon® has ever created.

Gone in 60 seconds

Remove entirely

For those few times when you need complete access to your bed with nothing in the way, Tectonic removes entirely in 60 seconds by way of lift-off hinges.

Tectonic cover close up.

Product Specifications

Haul Capacity400 lb. (on-road rating)
Static Load Rating600 lb. (parked)
Panel Material.080" 5052-H32 aluminum
FinishFusionKOTE (powdercoated + bedliner)
Installation Time30 minutes or less
WarrantyLifetime
Machined Hardware316 Stainless Steel
Removal TimeRemove entirely in 60 seconds
Product Weight30 lbs. per panel (90 lbs. total)
Tectonic cover close up.

Solid & Smart

All the strength without the limits

Tectonic cover close up.

1. The roof over your bed

Our panels are crafted from laser welded .080” 5052-H32 solid aluminum, with 50% greater tensile strength than 3003 alloy aluminum.

2. These are no cheap hinges

Hinges machined from 6061-T6 Aircraft Grade Aluminum with Type III UV Resistant Anodizing (architectural grade). In other words, the bees knees.

3. Built to carry

Machined aluminum and architectural anodized tie-down cleats are integrated directly with the structural support stud underneath, ensuring your cargo on top isn't going anywhere.

4. Layers of protection

Your cargo is sealed from the elements by multiple layers of protection, including a full perimeter gasket, secondary rail seal and internal rain gutters at the hinge points.

5. Welded Support Beams

5052-H32 aluminum welded structural support beams provide weight distribution and increased strength.

6. Twice the Finish of other Covers

Literally. First we powdercoat the entire cover with an underbody automotive grade powder to provide incredible adhesion and tooth for the final coat. Then we throw down an indestructible spray-on bedliner finish ready for anything you can throw at it.

30 Minutes or Less

Easy Install

Peragon® Tectonic was purposefully designed with easy installation in mind. No professional installer needed. You'll be done in 30 minutes or less.

Peragon® Tectonic Folding Cover Customer Walkthrough

GMC Sierra 1500
Bed Cover Reviews

May 18, 2026

from Montana

2026 GMC Sierra 1500

Tectonic

The Peragon Tectonic cover is well designed, sturdily built and an attractive addition to our truck. The installation video was spot on. The three-piece design of the cover is very convenient for carrying odd sized cargo and I particularly like the option of quickly removing the entire cover when necessary.

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 100%
  • Ease of Installation
    User: 100%

May 04, 2026

from Billings, MT

2018 GMC Sierra 1500

Tectonic

The tectonic cover is a heavy duty, well designed cover that looks fantastic on my Denali. It is simple and fast to move the panels around to meet my hauling needs. Peragon stayed in contact with me before and after I received the cover to provide installation assistance if needed. I didn't need assistance as the installation was simple and fast.
Courtney and Heidi in customer service are the best! It has been so refreshing to experience the professionalism and high level of service provided by them.

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 82%
  • Ease of Installation
    User: 100%

April 24, 2026

from Bristol,Va

2026 GMC Sierra 1500

Tectonic

Product arrive safely and was easy to open to to get to all the parts. The installation was very easy and the video that was email was great when needing information. The new cover looks absolutely great and works perfectly!! I would recommend this product. Thanks

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 100%
  • Ease of Installation
    User: 100%

April 18, 2026

from North Carolina

2026 GMC Sierra 1500

Tectonic

Love the versatility of this cover. I do wish sometimes it had latches to open it on each side though.

  • Customer Support
    User: 100%
  • Ease of Use
    User: 75%
  • Strength and Durability
    User: 80%
  • Ease of Installation
    User: 100%

April 11, 2026

from California

2024 GMC Sierra 1500

Tectonic

It was amazing simple to install. Looks great, made with high quality and very impressive product.

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 100%
  • Ease of Installation
    User: 100%

April 08, 2026

from Mississippi

2026 GMC Sierra 1500

Tectonic

Very easy to install. The moveable tri-fold system that sits above the level of the truck bed is absolutely top notch. Unparalleled access to bed storage.

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 100%
  • Ease of Installation
    User: 100%

March 22, 2026

from Stamford, CT

2026 GMC Sierra 1500

Tectonic

I’m very happy with the cover, it looks great and provides a secure locking area that I needed.

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 95%
  • Ease of Installation
    User: 100%

March 20, 2026

from LA

2023 GMC Sierra 1500

Tectonic

I have had roll n locks and old school vinyl covers. This is by far the best bed cover to date. Took less than 45 minutes to install. Keeps all my gear dry and safe here in South Louisiana. Hurricane season is coming up and I have no doubt, it will be a game changer. Plus the packaging provides 2x4s and plywood for projects on the farm!!!

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 100%
  • Ease of Installation
    User: 100%

March 20, 2026

2026 GMC Sierra 1500

Tectonic

Great unit. A little heavy being 3 panel . Should have holding struts for panels

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 100%
  • Ease of Installation
    User: 100%

March 15, 2026

from North Carolina

2017 GMC Sierra 1500

Tectonic

I’ve been really impressed with the Paragon Tectonic bed cover so far. The fit and finish are solid, and it seals up the bed well — even after a few good rains I haven’t had any water getting inside. That was one of my biggest concerns when buying a cover, and this one has handled it without a problem.

Another thing that stood out was the installation process. The instructions were clear and easy to follow, and the video walkthroughs made it even smoother. It’s obvious some real thought went into making the install straightforward for someone doing it themselves.

Overall it feels like a well-built product that does exactly what it’s supposed to do. Clean design, good sealing, and great support material for installation. Very happy with it so far.

  • Customer Support
    User: 100%
  • Ease of Use
    User: 100%
  • Strength and Durability
    User: 100%
  • Ease of Installation
    User: 100%

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