A 4 by 2 by 2 ft rectangular bed built from galvanized steel, sized to give a generous run of planting without needing a whole plot to hold it. Vegetables, flowers, herbs and fruits all suit that footprint, and the 2 ft wall height is the number that changes the work: the soil surface arrives high enough that planting and weeding stay friendly to knees and back instead of demanding a crouch. The base is open ended rather than closed off. Water drains straight through into the ground beneath instead of collecting in a pan, and roots keep growing down past the panels into native soil rather than turning back at a floor, which is what lets a bed this size support deeper crops than its wall height alone would suggest. Panel strength comes from the corrugation. Folding the steel into ridges makes a thin sheet far stiffer than a flat one, so the sides hold their shape under the outward push of wet soil rather than bowing over a season, and reinforced brackets at each corner tie those panels into a rigid box. Tightly fastened screws hold every joint, so the structure stays secure once it is filled. Galvanizing gives the steel its working life outdoors, the zinc layer standing off the rust that plain sheet develops in a wet season. It weighs 20 lbs, ships flat for assembly, and suits a backyard, patio, balcony, garden or lawn.