Three cedar beds sized so you can reach the middle without stepping in the soil. A buried manifold splits drip irrigation to each bed off a single hose timer.
materials
Lumber
Rough cedar 2×6
Corners
Galvanized brackets
Liner
Landscape fabric
Irrigation
1/4″ drip + timer
verdictCedar shrugs off rot, and the drip line means I water by forgetting to turn it off. Second season and still square.