The chest freezer I bought is already 3 feet tall, and I don't have to bend over to reach a hypothetical tap that would be 4-6 inches above the freezer. It would also fit 6 kegs already so I don't need the benefit of adding a real tall collar just so I can add 2 more kegs, but has anyone built a 12-inch high collar? I think a 2x12 will make it unnecessarily high and it's hard to come by a good quality one that won't warp. I haven't seen any 12-inch high collars on here, but I've read that others would have done it if they could do it over again so I'd like to know if anyone has actually tried it.