At present, the length of elevator cars installed in China's houses is generally 1.4 m to 1.5 m, the horizontal length of the two diagonals of the car is at most 1.6 m, and the length of the hospital-specific stretcher is 1.87 m. In any case, the stretcher cannot be placed flat in the car. If the barrier-free stretcher elevator is installed in the house, the pool area will be increased and the procurement cost and maintenance cost of the elevator equipment will be increased. In order to save money, most developers can be small and small when installing elevators, and save as much as possible to meet the characteristics of maximizing corporate interests.

In the provisions of the "House Design Code" GB 50096-1999 (2003 edition), the configuration of "elevator that can accommodate the stretcher" is not a rigid requirement. Therefore, the relevant departments cannot be rigidly required at the time of acceptance and lack of restraint.

With the development of society and the improvement of national laws and regulations, people's performance requirements for residential buildings are getting higher and higher. It is a general trend to develop barrier-free stretcher elevators in China. Various products in use have appeared on the market. Technically, there are no problems, but the product standards are different and there is no uniform requirement.

In developed countries such as Europe and the United States, elevators in high-rise residential buildings are uniformly designed into rectangles. The length and width dimensions fully meet the requirements for the placement of emergency medical stretchers. Patients can be pushed directly onto the stretcher to the operating room of the hospital, which can alleviate the suffering of patients. It also increases the effective treatment rate. In many advanced residential projects in Europe, residential elevators with a small load capacity but deeper cars are generally installed, with a width of only 0.8 m to 0.9 m. The stretcher can be easily accessed in such an elevator.