(612) 339-6900

Cedar Shakes & Shingles Antitrust Litigation


On February 27, 2019, the antitrust team at Lockridge Grindal Nauen filed the first indirect purchaser plaintiff antitrust class action on behalf of our client alleging anticompetitive conduct by manufacturers of cedar shakes and shingles. Our client and the class we intend to represent are indirect purchasers of cedar shakes and shingles from defendants and their co-conspirators. Cedar shakes and shingles are most often used as roofing and siding in new residential and commercial construction, and in repairing and remodeling existing homes.

In our complaint, we allege on our client’s behalf that beginning no later than February 27, 2015 (further investigation and discovery may reveal an earlier date), a trade association known as the Cedar Shake & Shingle Bureau (“CSSB”), and certain manufacturers of cedar shakes and shingles conspired and colluded to fix prices for cedar shake and shingle products sold in the United States. Defendants enacted a scheme to fix pricing and restrict supply from cedar shake and shingle manufacturers. As a result, since at least February 27, 2015, cedar shake and shingle product prices have been artificially inflated.

Were you affected by the alleged cedar shakes and shingles conspiracy?
If you purchased cedar shake and/or shingle products for end use, not resale, during the period February 27, 2015 to the present, and those products were sold under the CSSB Certi-Label (shown below), please contact us.


If you would like to discuss your legal options, please contact Joe Bruckner or Brian Clark at or at 612-339-6900.


Class Action Complaint