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Made In The USA

These shims simplify the use of multiple shims in window installations. Snap off individual shims for the exact size needed for the job. Made of recycled high impact polystyrene. 

Our stackable shims are available in both long and short stackables.

Special pricing available when ordered in larger quantities.

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We also manufacture custom shims!

Ask us about our custom shims manufactured to your specifications. Glazelock shims are designed with the installer in mind.

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