A few years ago I bought a new Honeywell T6 Z-wave thermostat online for about $60. When I went to install it I saw it came with a tiny wall plate that wasn't much bigger than the actual thermostat. This plate wasn't big enough to cover the horror that was hidden under the previous thermostat. In an effort to keep anyone who entered my house from pointing and laughing I went back online and sure enough Honeywell did sell a much larger plate… for $20?! Yes, I paid one third the price of the actual thermostat for a larger piece of plastic. Well now that I have spent thousands of dollars on 3D printers and mastered Tinkercad I'll never squander $20 again! Here's a very close facsimile to the one I bought so you can save money too! I could be wrong but I believe this will work with any of the T-series by Honeywell. It prints great face down with no supports.