This isn't a home made raised bed, but I have to post it up because it has some good ideas for construction. The original is a $600 kit that you can buy from Northern Tool and Equipment.
- There is a vinyl-coated mesh fencing for the built in trellis along the back side.
- The soaker hose has a holder to make it easier to water specific areas that need more water than what is provided by the irrigation system.
- I'm assuming the raised height is about the height of an average table. That puts it at 30". This would make it easier on the back.
- Walk-through gate is nice to keep pets out of the area. I'm lucky mine doesn't like to eat the vegetables I grow.