when I roughed it out
i cut he oak plywood to fit in the cabinet
then i laid all the pan lids out until i found a pattern that fit and allowed for easy removal.
i had two that were older and not as short in height, so they got a bigger hook.
the clips are made from a solid piece of cedar that i cut and fit to just allow the lid the slide under its lip.
my wife had previously installed them Rubbermaid shelve thingies in their for alum foil and some small pans, I hated it, they always banged around and soooooooo
i fixed it