i got some cement mixing tubs at lowes they are 24x36 i had to bend it a little to fit a 2x2x4 cage inside plus i needed to put 4 bricks inside the tray for the cage to sit on. i put a 1/2 pvc fitting on the end that i can out a 1/2 barbed fitting for the drainage tubing.i bought 5 of these trays for 12.99 each