What is the minimum ladder overlap above a window for escape/entry operations?

• A. At least 3 rungs above the sill.
• B. At least 1 meter (3 rungs) above the sill.
• C. At least 6 rungs above the sill.
• D. No overlap is required.

Answer: (B)

The key idea here is ensuring a safe, stable transition onto the ladder during window escape or entry. The minimum overlap above the sill should be about 1 meter, which is roughly three rungs. This distance gives a secure handhold and foothold, allowing the firefighter inside or outside to grab the ladder above the sill and step onto it with good balance and three-point contact. It also leaves enough room to maneuver and control the window area without the ladder slipping or the user having to reach awkwardly. Extending less than this increases the risk of losing balance or missing the ladder, while more overlap is acceptable but not required by the minimum standard.