AMin1810

Hello, I am very new to VW and am trying to create this raised bed in a 3d model so I can make a planting plan for it. https://www.harrodhorticultural.com/harrod-superior-metal-raised-beds-anthracite-grey-pid10024.html It is 0.6m by 1.8m and the height is 40cm. The material is 1mm thick galvanised steel I want to fill it with soil and then plants. I'm really struggling to get any further than a 2d rectangle and any help would be amazing.