International standard for human sitting size

1, the length of the cushion is about the distance from the rear edge of the hip to the protruding part of the knee.

2. The width of the cushion is about the distance from the widest part of the hip.

The height of the seat is about the distance from the ground when the knees of normal adults are bent at right angles.

4. The height of the back support is about the distance from the lower edge of the scapula to the seat surface.

The height of the armrest is about the distance from the seat surface to the top of the armrest.