24" x 20" surface area. Stand elevates the work to 30"- eliminating the necessity to kneel, stoop, or bend as you work. Four easy-swivel casters give you control over positioning your grow box. Store additional plants or your tools on the ventilated storage shelf. The shelf grid lets rainwater fall through - keeping your supplies from sitting in standing water. The resin used in this product is food safe High Density Polyethylene. It is chemically inactive, BPA free and Phthalate free. (Very Food Safe). For long range, the plastic is colorized with UV additives (also chemically inert) to prevent long term degredation in direct sunlight.