All my TOG Molds provide a length of a bar of 3-3/8" :wink: I like to pour to a depth of 2-1/3" and cut my bars 1-1/8" thick. My cured bars weigh in a minimum 4-1/2 to 5+ ounces each. I like a hefty bar of soap, one you know is in your hand.
I use log molds of various lengths from 5 inches to 15 inches long, all make a bar 3-3/8 inch wide or long. Sometimes I use a slab mold for better defined swirls. I use a divider slab mold and a new slab mold I just am coming out with, a block slab mold that you split the slab into 3 logs, then cut each log into bars.
I started off using a cardboard box (lined of course) Then I got a slab mold and cut bars in a lot of different sizes to experiment. the one I like best is 3x3x1 I haven't gotten any of this size to full cure yet so I don't know exactly how much it will weigh, but it should be four ounces or just a little over. I just put in my request for a custom TOG to accomodate my prefered soap size and shape...I've also been fooling around with the pvc pipe. Eventually I want to try HP clear soaps in the pvc.