Pipe and Kee Klamp desks do come up pretty sweet, although I think they're probably a little fiddlier to adjust than some other types of standing desks.

10 DIY Standing Desks Built with Pipe and Kee Klamp | PCFSCT – Know more than Local plumbers!
Some concepts of building structures or frame work might look complicated but if you observe critically, they cannot be such mind boggling if you’re determined to DIY. Standing desks built with pipe and kee klamp can be of great use especially when you are up for doing it yourself.