Custom Plastic Shims- Shims plates are available upon request.Get precise and efficient leveling and alignment with Delauriers Heavy Duty Plastic Shim Plates and Horseshoe Shims. These durable shims are made of high-density polyethylene and are perfect for leveling machinery, equipment, doors, windows and structural applications. They are weather and chemical resistant, easy to install. We stock a large variety of sizes and thicknesses. Order now and experience the convenience and precision of Delauriers shims. Made in USA