Renerrabbbit, when I enter the code you gave me it comes back as B33. Here again, I think I either typed something wrong or am missing something.
%automatic_label[0..1].include?("SB") && type[0] == 'B' ? ('BSC' << ((height - countertop_thickness).to_f.to_i.to_s) << width.to__f.to_i.to_s) : automatic_label%