I ordered this mobile base as I wanted to be able to move my planner around in my workshop.  I had put one of these together a couple of years ago which made the job easier.  I was able to put the base together in about a half hour.  I purchased the 2x2's at a local store and I made sure that the wood was hard word to make the base strong. The project worked out very well and I can move the planner around easily without too much effort.  Glad I read the reviews ahead of time as I was prepared for some of the issues mentioned in the reviews.  Good product, just pay attention to the directions.