If a desk is too high and the chair too low, a person is forced into a hunched posture, shortening the viewing distance; over time, this can easily lead to spinal curvature and myopia. Therefore, furniture used daily must meet established standards; national regulations already specify the required heights for desks and chairs.
Improperly matched desk and chair heights directly affect sitting posture and are detrimental to the user's health. To address this, national standards mandate a minimum clearance of 580 mm in height and 520 mm in width beneath the desk surface, ensuring sufficient legroom for the user.
Beyond health implications, the height and angle of a desk are crucial factors influencing work efficiency. An appropriate desk height allows the user to maintain an upright posture with arms hanging naturally and feet resting flat on the floor. A suitable desktop angle-positioned parallel to or slightly below the line of sight-alleviates strain on the neck and shoulders, reducing the physical fatigue and discomfort associated with prolonged work, thereby boosting productivity. For users of varying heights, desks with adjustable height and angle settings are an ideal choice to meet individual needs.