(1)Each bracket measures 11.75 inches high by 4.5 inches wide with a 2-inch top edge to hold wooden slats. (2)Accommodates boards up to 5.08" x 30.48". 3. Pre-drilled, each corner bracket sits securely on your wood. 4. Wooden strips can easily hold each bracket on the fixed lip. 5. The tip of each stand can be inserted into the soil.