How is a double hung sash window secured?

• A. Remove the sash entirely
• B. Tighten screws through the frame
• C. Secure it by placing a nail or dowel through a drilled pin hole
• D. Wrap the sash with tape

Answer: (C)

Securing a double hung sash window means immobilizing the moving sash so it can’t slide or tilt open. The best way is to insert a nail or dowel through a drilled pin hole in the frame so the pin passes into the sash and locks it in place. This creates a physical barrier that prevents the sash from moving, providing reliable security from tampering or forced opening. Removing the sash or just tightening screws won’t stop movement in many situations, and wrapping the sash with tape offers little real security.