This 3-Tiered Cedar Raised Garden Bed allows you to plant and harvest a variety of herbs and vegetables. The bottom tier is 7" tall, the middle tier is 14" tall, and the top tier is 21" inches tall. Our tool-free frame assembly makes building your garden easy. Simply build the raised bed tier by tier, starting at the bottom, by sliding the dovetail boards into the posts. Once you are finished with the frame assembly you can screw on the decorative caps for the finishing touch!