Often it is the simplest of products that end up with the most surprises. Planter boxes (any box actually) that are made from metal are one of them. The difficulty is in the process of building, where the height of the box versus the width of the box becomes an issue. The wider the box, the more height that is available, while the more narrow the box the less height. Now, keep in mind that I like to use a hydraulic press brake to bend my metal. I could always use the old trusted pan and box brake, but the CNC press is just so perfect.
Another thing is welding. If the math, layout and notching are done perfectly then the welding is straight forward as 80% of welding is all about fit. When dealing with smaller sized planter boxes, the gauge of material is important. For a box this size I use 18 gauge cold rolled mild steel. With this many brakes the metal will appear much more rigid than one would expect for such thin metal. Another important detail to keep in mind when dealing with such simple designs is that even the smallest overlooked detail will become obvious when there is nothing to contrast it against. What I mean here is that over the length of the box it is important that when it is full of dirt the sides do not bow. Crisp, tight and straight lines are about the only details on something so simple, so it requires perfection.
The stainless steel base is there to keep the box elevated. Cleanliness is such an important factor for small spaces that by elevating the plants there are less corners to attract dust. Plus it gave me a chance to play with the ‘Rule of Thirds’ and create some contrast and negative space.