Fire Door Size Chart

2 1 2 4 louvers for fire doors.

Fire door size chart.

2 1 2 3 steel astragals on fire doors. Local codes should be reviewed but in general rated doors must be self closing and must have a positive latch. Fire door standard sizes. Common options are 2040 x 526 626 726 826 926 x 40mm.

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. Metric sized internal doors are becoming increasingly popular and are now commonly used in scotland and europe. This will give you room to space the door frame off of the sub floor. Getting the rough opening size right the first time will save you from frustration when installing your doors.

Steel gage of the door example. Framing rough opening sizes are really quite simple. The main difference between these and the standard uk sizes above are an increased door height of 2040mm and door thickness of 40mm. 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.

When specified fire doors shall be provided with fire labeled louvers. Door size conversion chart. Maximum doors size for fire ratings is influenced by but not limited to the following items. 20 gage door constructions are approved for smaller door sizes than what is shown above.

Chart of door ratings and labels. You should add 2 1 2 to the height of the actual door. Fire ratings for doors are influenced by but not limited to the following items.