Sorry to revive an old thread, but I was directed here from a later, similar one. I am also having trouble with my tub cutting a rectangular hole in the countertop. I've tried matcing cabinet and/or countertop heights to the tub height but without success. Would someone walk me through the process?
Plan: https://drive.google.com/file/d/1z2MkbMRJtGiBEEGSICXOcaQm_KcTKH_R/view?usp=drive_link