I've been working on some mobile stands as part of my basement shop renovation, and I finished assembling them this evening. I installed swivel casters on all 4 corners, two of which are full locking. Since I work in the basement, I wanted them to break down easily for when I want to move outside. Each leg has a dowel that drops into a hole in the base, and the stretcher uses bed rail hardware to attach to the legs. Lots of room for storage on the platform, and assembled they're nice and sturdy. I can't wait for the next build.

I posted a series of construction photos at the link below.

Ross