Fire Door Size Chart

20 gage door constructions are approved for smaller door sizes than what is shown above.

Fire door size chart.

Fire ratings for doors are influenced by but not limited to the following items. Common options are 2040 x 526 626 726 826 926 x 40mm. When specified fire doors shall be provided with fire labeled louvers. 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.

Just add 2 to the width of the actual door size. This is because extra core component materials are required in the construction of the door to achieve its fire rating. You should add 2 1 2 to the height of the actual door. Maximum doors size for fire ratings is influenced by but not limited to the following items.

Framing rough opening sizes are really quite simple. Metric sized internal doors are becoming increasingly popular and are now commonly used in scotland and europe. 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. Door size conversion chart.

Local codes should be reviewed but in general rated doors must be self closing and must have a positive latch. Where required by a manufacturer s listing or ansi nfpa 80 fire doors and fire windows a steel overlapping astragal shall be provided. 2 1 2 3 steel astragals on fire doors. 2 1 2 4 louvers for fire doors.

This will give you room to space the door frame off of the sub floor. The main difference between these and the standard uk sizes above are an increased door height of 2040mm and door thickness of 40mm. Steel gage of the door example.