welcome aboard!:regular_waving_emot In your area, I highly recommend going DEEPER! start at 2'-36" at the shallow end, 48"-72" at the deep end, Your not going to get much use out of a 12" deep end most pots for plants will be at least that. Deeper is more stable, 2' is about as deep as a Heron will stand in the water to fish, so if you go deeper than that you'll at least keep the king of predators out from INSIDE the pond. (doesn't stop them from fishing from the bank) The deep end needs to be 36" or deeper just to allow your fish to make it through winter, 4' is better 5' is even better. Cooler in the summer, warmer in the winter and with this size pond, You don't limit yourself to what kind of fish you decide to use, They can all live in a pond this deep and this big. If you go 36" at the deep end, your limiting yourself pretty much out of any good koi pond unless you plan on bringing them in for the winter. Price difference, a little more work load effort, quite a bit more, BUT WORTH IT!:lol::surfing: