I looked into doing the glued together way. It will work, but you will need to make sure you have the grain going opposite ways in order to avoid warpage. I ended up having him use a single piece and run the router around the edge to make the edge. I figure a thicker piece of stock will be stronger and cleaner looking. I had to buy a 2 3/4" hole saw from home depot for the betax shutter. Ended up costing $20 just for the saw