Fire Door Size Chart

Metric sized internal doors are becoming increasingly popular and are now commonly used in scotland and europe.

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. This will give you room to space the door frame off of the sub floor. 20 gage door constructions are approved for smaller door sizes than what is shown above.

Fire door standard sizes. Framing rough opening sizes are really quite simple. Just add 2 to the width of the actual door size. Maximum doors size for fire ratings is influenced by but not limited to the following items.

You should add 2 1 2 to the height of the actual door. 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. This is because extra core component materials are required in the construction of the door to achieve its fire rating.

Metric size fire doors are also available within some of the ranges and there is usually the option of the following sizes to select from 626mm x 2040mm 726mm x 2040mm 626mm x 2040mm and 926mm x 2040mm it is worth noting that although these are standard metric sizes not all doors will be available in these sizes whilst metric size doors. The main difference between these and the standard uk sizes above are an increased door height of 2040mm and door thickness of 40mm. Door size conversion chart. Getting the rough opening size right the first time will save you from frustration when installing your doors.