22"x22”x7”. Botanicare grow trays are available in many sizes to suit most applications. The trays are 7 inches deep and are ideal for use with rockwool, grow rock or pots filled with a soilless grow substrate. They are made from thick, durable, high-impact ABS which prevents the trays from bowing or sagging under the weight of large plants or full capacity water for years of continuous use.