What is the optimum thickness of the ceiling ceiling in the interior design and the best distance from the top surface?
If not installed downlight, then light steel keel ceiling can be the lowest 9 cm can be installed if the downlight, then the least down to 15 cm ceiling too thick does not look good if you want to cover the beam, then it is best to use gypsum line to modify this is just a personal humble opinion
Each design has its own style. Under normal circumstances: the ceiling of the home improvement will be designed according to the size of the beam, usually from the bottom of the beam, up 50 ~ 100mm or so began to do the ceiling, some relatively short beams can be in accordance with the actual pull the ceiling beam, or more Come down. Light tank empty part of the general: 60 ~ 200mm or so, 120mm is more commonly used. If you want to angle, please stay 100mm ~ 120mm or so, if there is no angle can do a little smaller: 80mm on it.