Grove Products, Inc., the leading producer of plastic structural shims, is a family-owned business founded in 1962. Depend on Grove. You have bigger problems to take care of without having to worry about shims. That’s why the Braune Family and our staff pay extra attention to the details. Details like using the best recycled plastics and making sure your order gets shipped quickly and accurately. Since all we make is shims, we have to be the best in the business.