What is the height of the sofa?
If the couch is too high, people feel uncomfortable sitting in a chair; it's difficult to get up when people are too low. In addition, the sofa seat width should not be less than 48 cm, the seat depth should be more suitable for between 48 to 60 cm.
The seating height of a pair or three person sofa is the same as that of a single sofa, and the width of the seat surface varies accordingly. Generally three people sofa, each person's seat spacing to 45 - 48 cm is appropriate, double sofa seat surface spacing can be greater, 50 cm, depending on the user's body shape.
The sofa backrest height is generally provided: low back waist support 490mm-550mm, height is not higher than sitting under the angle of scapula, to ensure that the upper arm can be flexibly and freely, sofa backrest height is generally 310mm-350mm. The middle back provides the support of the waist and back, the height is not higher than the cervical vertebra point, so that the head can be flexibly rotated; the back height of the sofa is generally: 400mm-450mm, the low back sofa is high and close. In addition, the height of the center of the three supporting areas on the back, waist, back, neck and head is about 150mm-180mm, 380mm-420mm, 450mm-480mm, respectively.
In general, the sofa seat height should be consistent with the knee bending height, can make people feel comfortable; the seat is generally a single sofa should be maintained at 42 cm height (the height of the seat with a heavy pressure including the scale).
