Notice Sign - Please Knock Before Entering | SmartSign #3506178 (License: Personal Use)

This rectangular sign features a bold blue header with “NOTICE” in large white uppercase letters, followed by “PLEASE KNOCK BEFORE ENTERING” in black sans-serif font on a white background. The bottom right includes the SmartSign.com logo, phone number (800-952-1457), and product code S-5965. Designed for indoor or outdoor mounting, it uses weather-resistant materials and high-contrast colors for maximum readability.

Commonly used at office doors, residential entrances, clinics, or secure facilities where privacy or protocol requires advance notification before entry; matches user intent for purchasing ready-made compliance signage.