Wrong! They are 25-1/4" inches overall in depth. The bull nose extends
beyond the front of a 24" cabinet by 1-1/4".
You have to cover the cabinet top with 1/2" plywood, or just use 1/2"
spacers on the top edges of the cabinet, or else the bullnose will sit
too low and you couldn't open the top drawers.

Wrong! Countetops come already built-up and need no 1/2" plywood or
spacers front and back.

Unless of course you order them that way, since you can order any size
and any construction you want.

Jeff