I had the griddle hooked on a couple screws for a long time, and my partner encouraged me to finally upgrade.
I cut up a seat I’d someone else was throwing out.
Table saw to cut widths, band was to shape the holders, back to dado on the table saw to notch the backs of the holders.
Hand plane for all the flat sides, sanded the edges. Spent more time finishing it than it really merits for something that will be hidden almost all the time.
Mine was, “how much noise would the cats make playing with that at 3:00AM, and could they unhook the smaller pans at the bottom?” (One of our cats is an evil genius who will, among other things, open drawers to pull out his toys when he’s bored.)