Previously, the ceiling is hanging down 10cm, 15cm, because taking into account the construction of late painters can not enter the hand, or batch of putty when scratching the hand, so now unified are 18cm, but this is the minimum size!

I am doing the design, there is a picture below, I hope to help you! If you have any questions you can find me, I'm happy to help!

The wall, at least 80mm or 100mm, not more, more easy to see the interior! In fact, you can convex 80mm to hide the light strip, the top surface with T4 lamps, can be!