What should be the minimum width of a window in a sleeping room for emergency escape?

The minimum width of a window in a sleeping room for emergency escape is important for ensuring safety during emergencies, such as fires. The correct answer indicates that a window must be at least 20 inches wide to allow occupants to escape safely. This width requirement is established in building codes to facilitate swift egress, ensuring that individuals can exit the space without hindrance.

In addition to the width, building codes usually specify other dimensions for windows regarding height and overall area, which are also crucial for ensuring that they serve their purpose effectively. A 20-inch width strikes a balance by being wide enough for the average person to pass through while still being feasible to construct in a residential setting.

Alternative measurements such as 18 inches and 24 inches do not meet the established safety standards. A width of 18 inches would not provide adequate space for escape, while a 24-inch window, although potentially safe, exceeds the minimum requirement and is not necessary for compliance. The 30-inch option is also wider than required, and while it contributes to safety, it is not the minimum that must be adhered to. Thus, the minimum requirement acknowledging safety measures leads to the correct answer of 20 inches.