I basically put Elfa Top Track on all the walls of my garage (screwed it into the studs, which required that I drill the top track) and all the shelves are based on that.

Allows me to adjust shelves both horizontally and vertically with ZERO effort - no drilling or screwing, just move the components around.

Not cheap, but worth it!

https://www.containerstore.com/s/elf...-easy-hang/123

O2