The ceiling wall of the bathroom is 145 cm wide and 220 cm long, which is several square meters

Yes, a 12 cm wall is OK, and the expansion screw for hanging the water heater is generally only cm long, which is completely fine.

It is recommended to put the washing machine somewhere else.

Negotiate with the developer, but if the negotiation fails, you have to file a lawsuit. The court will require you to provide evidence, in addition to photos, videos and other materials, it is more important to find the quality management department to identify and issue a certificate, so that the lawsuit can be won.

The height of the washbasin in the bathroom is 90 cm, the standard is 80 cm, there is no mandatory requirement, it generally depends on the specific situation of the family members, if the family members are generally higher, it is okay, otherwise it is more troublesome to use. >>>More

Area = length x width.

4m x 2m. >>>More