Fire Door Size Chart

Common options are 2040 x 526 626 726 826 926 x 40mm.

Fire door size chart.

Local codes should be reviewed but in general rated doors must be self closing and must have a positive latch. Fire ratings for doors are influenced by but not limited to the following items. Framing rough opening sizes are really quite simple. Getting the rough opening size right the first time will save you from frustration when installing your doors.

Chart of door ratings and labels. All of the standard uk and metric door sizes are usually available as a fire door equivalent with the only difference being an increased door thickness of 45mm. 2 1 2 4 louvers for fire doors. Just add 2 to the width of the actual door size.

You should add 2 1 2 to the height of the actual door. When specified fire doors shall be provided with fire labeled louvers. There are also limits to the size of glazing in the door the width of gaps between door panels the height of the door under cut and the size of air transfer grilles. 2 1 2 3 steel astragals on fire doors.

The main difference between these and the standard uk sizes above are an increased door height of 2040mm and door thickness of 40mm. 20 gage door constructions are approved for smaller door sizes than what is shown above. Where required by a manufacturer s listing or ansi nfpa 80 fire doors and fire windows a steel overlapping astragal shall be provided. This will give you room to space the door frame off of the sub floor.

Maximum doors size for fire ratings is influenced by but not limited to the following items. This is because extra core component materials are required in the construction of the door to achieve its fire rating. Fire door standard sizes.