What is the standard for the size of doors and windows?

The indoor door is generally 900mm×2200mm, and it can be 1000mm×2200mm if conditions permit.

Indoor guard doors are generally 800 mm× 2200 mm.

Double doors 1300mm×2200mm or 1500mm×2200mm.

The width of the double-opened letter door will be smaller, generally about 1200mm×2200mm or 1300mm.

If there is a door head, such as a European door head, the height is generally around 2700 mm

The width and height of the window are relatively random, and the window size is generally planned according to the overall design of the external wall, which is common in indoor space.

Living room 1.5m times 1.8m~ 1.8m times 2.1m.

Children's room1.2m×1.5m ~1.5m×1.8m.

The big bedroom is 1.5m times 1.8m~ 1.8m times 2.1m.

Toilet 0.6m× 0.9m ~ 0.9m×1.4m.