In residential seating, the typical comfortable seat height range is which of the following?

• A. 12–15 inches
• B. 18–22 inches
• C. 16–19 inches
• D. 20–24 inches

Answer: (C)

Comfort in residential seating comes from matching the seat height to human leg dimensions so that the knees form about a 90-degree angle and the feet can rest flat on the floor. The 16 to 19 inch range hits that sweet spot for most adults, balancing leg posture with stable weight distribution and ease of getting in and out of the chair. If the seat is too low, the knee angle becomes too sharp and the thighs feel squeezed, which can cut off circulation and feel uncomfortable over time. If the seat is too high, feet can’t reach the floor, causing the sitter to perch or strain to maintain balance, which also isn’t relaxing or supportive. Upholstery thickness and cushions can raise the effective height, so this range serves as a practical baseline that works with typical furniture heights and a wide range of body sizes.