Newbie here and not exactly Mr. Fixit.
I'm a bit confused about that table top to shelf top measurement for the large egg. I have a new egg so I guess it has the spring type hinge. In visualizing this I am trying to understand, how crucial is this measurement? I'm guessing a measurement that is too small (say 13 inches) would place the egg too high in the table and a measurement that is too large would stop the cover from opening. The larger measurement, could be "fixed" by adding paver or brick to raise the egg. As I plan to put a paving stone on top of the bottom shelf and not recessed as some plans show I was going to use 17 inches. Does this sound alright?