Thanks so much @Joseph Corlett, LLC, and for replying so quickly too. The Blanco sink we wanted was a regular one bowl sink, not an apron front. Not sure if this would change anything. The picture you posted was great. So when installing a new sink, we would remove the front of the cabinet and the sink would slide out, correct? I found out about sink straps from your posts here after we started the remodel. If I had known before, I would have picked a contractor willing to install with straps. We are a big family and a large sink is important to us. He cannot understand how straps attached to the cabinet are strong enough to hold up the sink. He is not willing to cut into the new cabinet as he says it would weaken the cabinet (see triangular pieces in corners that would have to be removed in picture below). It would also void the warranty, and he has supplied the pre-fab cabinets, so either I find someone else who is willing to, or I get a drop in sink to avoid attaching to the plywood, which is the way I'm leaning now. Do you know of anyone with your expertise with strap installation in Los Angeles? I hope there's a way to install the top mount sink into the quartz where we can do an undermount with straps in the future. Also a side question. We had mold damage which started the kitchen demo. Mold was around the dishwasher cabinetry (dishwasher leak), and also on the plywood subdeck around the sink (we think from weak caulking and holes in grout between granite tiles on countertop). Is there anything that can be done to protect the cabinets from dishwasher leaks? By the time you realize the dishwasher is leaking, the damage is already done. Thank you so much. This the sink we had planned to install: Blanco Precis - Undermount The top mount we will probably install: Diamond Blanco Sink - Top Mount

Why must “the drawer ends be returned to the apron sides?” I personally don’t like the look so want to see what it looks like just to have 3” of cabinet face on either side.

Yes. A 33" sink will undermount in a 33" cabinet. Are you changing your cabinets or retrofitting please?

A 30" sink will undermount into a 30" cabinet, so a 24" has plenty of room.