These are the design files for the bike racks I built for my camp at Burning Man 2017.
You will need to use plywood that is 18mm/19mm or 23/32" or 3/4" in thickness. You should NOT use MDF, OSB or Particle Board. They do not have the rigidity needed for this design.
Pine or sande plywood are great inexpensive options. Use birch or maple as well, they provide a great visual finish.
These layouts are designed to be CNC cut with a 1/4" router bit, however you can also hand cut these using a jigsaw and a good palm sander. If hand cutting, be careful cutting the notches that join the pieces - they need to be very accurate to ensure a proper friction fit.
To assemble, use a soft mallet to push the notches fully together. It is easiest to start by attaching the cross-sections to the center piece, then setting it on the ground and attaching each smaller outer piece.
To disassemble, use a soft mallet to tap the pieces apart.
Read more about the design and the reasons I built it here: http://www.thetylergibson.com/building-a-better-portable-bike-rack/