Step 1: Taking Mesurements
I then cut out all of the holes from my template and cut up some wood to make the mold. It is recommended that you use smooth surfaced material to make your mold, mine had a little texture in it to help me replicate a wood finish on my final product. I then sealed the corners with some caulk. The height of my new countertop was 2" as recommended as the minimum on the concrete I used. I had then traced all other markings from my template to the bottom of the wood, so I could add my mold forms for all my holes.
(I was making two sink countertops, in case I didn't like the first one, that's why there are two molds)