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Extang Classic Platinum Tool Box Tonneau Cover 32645

Product Information
List Price:
Our Price:
3.8 (1 review)
Part #:
  • Fits behind 18" to 21" tool box


Measure Your Truck Bed for a Tonneau Cover

Does your truck have a track system?

  • Made to fit with most 20" wide crossover toolboxes (sold separately)
  • Easy clamp on mounting
  • Removable bows
  • All-weather tonno
  • Snap Stopper keeps snaps on rail when tonneau is rolled up
  • Adjustable brass snaps
  • Made in the USA - Ann Arbor, MI

The Extang Classic Platinum Toolbox Tonneau Cover is an ideal solution for trucks already equipped with a tool box. They are custom fit and will form to most standard tool boxes. Get the same great protection as with other Extang truck bed covers, with the advantage of keeping your toolbox.

Also, these tonnos come in custom cut designs, fitting non-standard tool boxes. They feature a one handed tail rail which offers a quick release as well as snaps that are made of indestructible brass. The monster bows give added support and keep the tough vinyl tight in all weather conditions.

The Classic Platinum toolbox tonneau cover features the L-Channel sealing system. This system is made out of anodized aluminum and seals the gap between the tonneau and box. The L-Channel also acts as a rain drainage system, keeping your toolbox and tonneau free of moisture.

You now know you can have your cake and eat it too. With the Extang Classic Platinum Tool Box truck bed cover you are able to protect expensive cargo and still keep all your tools organized.

Get added security, protection and a sleek design with the Extang Classic Platinum toolbox tonneau cover today!

Manufactured by Extang, a Truck Hero company.

Order Notes

The cargo management, utili-track, or deck rail system options refer to the factory installed rail system designed to hold moveable cargo cleats along the inside of your truck bed. Please call us for further clarification.

View Available Part Numbers For This Product Line


  • (2007) Chevy Silverado 1500 New Body, 5'8" Bed
  • 2008-2013 Chevy Silverado 1500, 5'8" Bed
  • (2007) GMC Sierra 1500 New Body, 5'8" Bed
  • 2008-2013 GMC Sierra 1500, 5'8" Bed


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Extang Classic Platinum Toolbox Tonneau Cover Fast Facts
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Extang Classic Platinum Toolbox Tonneau Cover Unboxing
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Extang Blackmax and Classic Platinum Tonneau Covers Product Demos


Product Reviews Summary

Price / Value
Ease of Installation
1  Customer Review
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Worked with rear latch toolbox.
Part #: EXT-32645 Posted on
Was this review helpful?
- 2007 Chevy Silverado 1500 (Spring Hill, TN)
Price / Value
Ease of Installation
The trim/sealer piece between the Tonneau itself and the tool box gives plenty of room for access to toolbox latches that are not mounted on the sides of the toolbox. Was told by a rep that this wasn't the case, but I'm glad they were incorrect on this one.

The same trim/sealer piece that allowed this to work for me caused an air gap between the rails for the cover and the top of the bed rails. This is "corrected" by the manufacturer providing more weatherstriping to fill the gap. I would think there should be a better way. Then again, for the price and the appearance of the finished product I can't complain too much. I did shift the clamp locations around (closer to the toolbox)to give a little more downforce on the trim/sealer strip that runs along the toolbox to keep a tight seal between the toolbox and the tonneau. All being said, I am pleased with the product. I have used this brand before on several vehicles with good results.


Limited Lifetime Warranty on Frame / 10 Year Warranty on Vinyl

Extang Toolbox tonneau covers feature a limited lifetime warranty on frame and ten years on vinyl cover.


Extang Classic Platinum Tool Box Tonneau Covers have a clamp on installation. Model specific Extang clamps allow for an easy at home installation. Allow 15-50 minutes to install depending on technical skill level.

Watch This Video
How to Install Extang Classic Platinum Toolbox Tonneau Cover