Mailbox Flap Sound Effect

📝 Description

This Mailbox Flap sound effect is the metal flap of a letterbox lifted and dropped straight back down, two crisp clinks of iron separated by barely a moment. It is one of the shortest sounds in the library and one of the most specific, because almost nothing else in a house makes that particular sprung metallic clack. Editors use it to deliver news into a scene without showing a postman, and it has become a small staple of animation and comedy timing where a single sharp sound has to land a beat precisely.

📊 Sound Details

Duration

0:01

Format

MP3

File Size

4 KB

Added

August 14, 2026

⚖️ License & Source

This sound is released under the CC0 license (public domain) — free to use in personal and commercial projects, no attribution required.

Original recording by RutgerMuller via Freesound. View original source →