I would like to know as well. What size sink for a 30", 33", and 36"base.

We have the S405D (same sink, just w/small & large bowls switched) and are putting it in a 36" sink base. When we placed the sink over the sink base, it fit fine...when my DH let go it almost fell through! Some people have had to scribe out the sides somewhat to fit it in a 36", but it appears it will fit ours w/o the scribing. (Is "scribe" the correct word???)

We'll see for certain when it's installed w/the granite in a couple of weeks (if we ever pick out a new granite!)