Two Tier Raised Garden Bed Metal Standard SizeVego Cascading Two Tier Raised Garden Bed We designed this garden bed to offer an elegant configuration that combines the functions of our 17 and 32 tall raised garden series, all in one compact 3. 5ft x 3. 5ft footprint. Named for the graceful tumbling of a waterfall, our Cascading Raised Garden Bed is a two tiered raised garden that offers two heights in one. You can grow your deep rooting plants in the taller garden bed section, and grow plants or