In a wheelchair-accessible toilet reach, what are the typical measurements for low reach, high reach, and side reach over an obstruction?

• A. Low 12", High 60", Side 18" over obstruction
• B. Low 18", High 50", Side 22" over obstruction
• C. Low 15", High 48", Side 24" over obstruction
• D. Low 10", High 60", Side 26" over obstruction

Answer: (C)

In wheelchair-accessible toilet design, reach ranges are set so a person seated in a wheelchair can access controls and items without overreaching or tipping. The typical measurements place a low reach at about 15 inches from the floor, allowing access to things near knee level or the front of the toilet area; a high reach around 48 inches ensures someone can reach items placed higher without excessive stretching; and for side reach over an obstruction, about 24 inches is used so a person can reach past a barrier (like a stall partition or counter) without needing to lean excessively or tilt. These values balance ease of use with safety, making the 15" / 48" / 24" combination the best fit. The other options involve too-low or too-high targets or a side reach depth that isn’t practical for typical obstructions.