What is the common desk/table height range for ergonomic work surfaces?

• A. 28–30 inches (71–76 cm)
• B. 24–26 inches (61–66 cm)
• C. 32–34 inches (81–86 cm)
• D. 34–36 inches (86–91 cm)

Answer: (A)

The main idea is matching the desk height to a comfortable seated posture so the arms, wrists, and shoulders can stay relaxed. For most adults, a desk or table that is about 28–30 inches tall (roughly 71–76 cm) lets the forearms rest parallel to the floor with the elbows at about 90 degrees. This position keeps the wrists in a neutral line and the shoulders relaxed, which reduces strain during writing or keyboard use. If the surface is much lower, you’ll end up reaching downward and hunching, tiring the neck and lower back. If it’s much higher, the shoulders rise and the wrists may extend upward, creating tension. The other heights tend to suit standing or counter-height tasks rather than typical seated work.