The Won-Door FireGuard fire door was the first accordion type fire door to successfully pass nationally recognized tests to withstand the passage of fire. Won-Door FireGuard products are listed by Underwriters Laboratories Inc. (UL) for up to 3 hours as a rated door assembly and 2 hours as a moveable fire wall. All Won-Door products are built to withstand the test of time. Constructed of 24-gauge corrugated steel and with no exposed parts, these door assemblies are the most trouble-free accordion folding partitions in the industry.

Won-Door FireGuard products are offered in various configurations. those configurations include: Flat Lead Post, narrow lead post, slim, straight, and curved track.