I will be documenting my building of a chicken coop. Step 2: Taking the slab, some sanding was done to help the circular saw run smoothly. Lines are marked in chalk, one by one, as they are cut. The saw, not being deep enough, requires a joining cut fro the other side. The slots from the first side, can be use to line up the chalk line, to easily mark all the cuts, on the second side, before cutting. Repeat as necessary. Step 1: https://rumble.com/v41a9lg-building-a-chicken-coop-step-1-getting-wood.html