Protects aluminum posts from corrosion when installed on pressure treated wood
Prevents direct contact between metal and chemically treated lumber
Helps maintain railing strength and stability over time
Includes 10-year limited warranty for long-term confidence
Installing DesignRail aluminum posts directly onto pressure treated wood can lead to corrosion over time due to chemical reactions between the materials. The Post Base Isolation Pad creates a protective barrier that prevents this contact, helping your railing system stay strong and looking great for years to come.
This simple addition to your railing installation provides valuable protection for your investment. The isolation pad is especially important when mounting to pressure treated deck boards or framing, where the chemical preservatives in the wood can gradually cause corrosion in aluminum. With a 10-year limited warranty backing this component, you can build with confidence knowing your railing is properly protected from the ground up.
