根据住宅设计规范，单元房公用外门洞口宽度最小为1.2米，入户门、起居室（厅）门、卧室门一般0.9或1米，不得小于0.9米，厨房门不得小于0.8米，卫生间门阳台门不得小于0.7米，以上洞口高度不得小于2.0米；别墅式住宅单开门可做1米，双开可做1.5、1.8、2.1米不等，基本是3的倍数。
Residential entry doors generally use sub-mother doors with a size of 1200 * 2000. The unit gate is not less than 2000 in width and not less than 2200 in height.
According to residential design specifications, the width of the entrance to the public outer door of the unit house is a minimum of 1.2 meters, the entrance door, living room door(Hall) door, bedroom door is generally 0.9 or 1 meter, must not be less than 0.9 meters, the kitchen door must not be less than 0.8 meters, toilet door balcony door must not be less than 0.7 meters, The height of the above hole shall not be less than 2.0 meters; Villa houses can be opened by 1 meter alone, and double doors can be used for 1.5, 1.8, and 2.1 meters, which is basically a multiple of 3.
