Rev-A-Shelf - SBDT-3942-S-1 - Large Silver Sink Base Drip Tray measures 40.5" W x 23.25" D x 0.72" H. The minimum trim size is the 37  W x 21  D. That means thats the smallest the product should be cut down since the product is trimmable to fit custom needs Tray liquid capacity: 2.15 quart Unit can be installed to existing cabinet, but may require extensive modification to fit around existing plumbing Recommended for New Cabinet Installation due to stiffness of product.