Stock Clamshells

Our original core business for thermoforming was stock clamshell packaging. The StockClam program offers over 170 unique clamshell sizes that are available for immediate shipment. Same day shipments and low minimum quantities allow you to grow your business quickly without having to worry about tooling costs or lead times. Samples are available at no charge and, are recommended for testing fit. If a header card is part of your packaging solution, we advise sending a clamshell sample to your header card supplier for testing. Click below to view our header card option.

Stock Clamshell Packaging


Single-Sided Clamshells

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Box Clamshells

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Round Cavity

Round Cavity Clamshell

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Round Header

Round Header Clamshell

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Double-Sided Clamshell

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National Manufacturing Locations

As part of the Sinclair & Rush family of companies, we have thermoforming operations centrally located in St. Louis, Missouri, on the west coast in Portland, Oregon and on the east coast in Carlstadt, New Jersey. Our line of stock clamshell packaging is available nationwide. Likewise, our custom solutions are manufactured in all locations. We are manufacturers of precision clamshell packaging and thermoformed trays.

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