Dining chair dimension details.
|Seat height:||450 mm||18″|
|Seat width:||450 mm||18″|
|Seat depth:||430 mm||17″|
|seat angle:||0° – 5°||0° – 5°|
|backrest angle:||5° – 15°||5° – 15°|
|total height:||880 mm||35″|
The seat height does not have to be always exactly 450mm. It depends on which area of the world you are located. In Europe and the US the standard is 450mm or 460 mm. In Asia chairs tend to be a bit lower at 430mm or 440mm.
The height can also be adjusted to the height of the table. The distance between the seat and the bottom of the table should be at least 250mm to give the users legs enough space.
The width of the seat can be around 450mm, slightly difference in size are allowed.
The depth for the seat is usually around 430mm. Less deep gives not enough support for the users legs. If too deep, the user can not lean their back to the backrest.
Having a little angle in the seat makes a chair more comfortable
The backrest of a chair must have an angle. A backrest without angle is considered very uncomfortable.
Can be around 880mm. The important part is that the backrest is not too low to support the users back.