Aegis Fire Door Clearance Gauge Multicolor

This handy fire door gap gauge is a great teaching tool for quickly checking fire door gap requirement compliance. Instructions how to use it are shipped with the item.

Features

• WOOD DOOR: MAX 1/8″ (NFPA 80 v2013 6.3.1.7.1)
• STEEL DOOR: 1/8″ +/- 1/16″ (NFPA 80 v2013 6.3.1.7.1)
• IF THRESHOLD IS ABOVE 38″: 3/8″ (NFPA 80 v2013 4.8.4.2)