Nice build for a simple fold down workbench. The author attaches it to a wall for more stability, but you don’t have to. Me…I think I will just buy used Black and Decker Workmates myself. But if you already have the materials and time, might be a good build to do. Oh FYI the front top crossbar is attached with hinges…thats how its able to bend.
http://www.diynetwork.com/how-to/skills-and-know-how/tools/how-to-make-a-fold-down-workbench