What is the maximum door size for UL fire rated doors?

Maximum UL Fire Rated door sizes are as follows:

A-Series:

1. 4' 0" X 8' 0" single door
2. 8' 0" X 8' 0” double door or pairs

B-Series

1. 4' 0" X 10' 0" single door
2. 8' 0" X 10' 0” double door or pairs

CE-Series:

1. 3' 0" X 8' 0" single door
2. 3' 8" x 7' 0" single door
3. 6' 0" X 8' 0” double door or pairs
4. 7' 4" x 7' 0" double door or pairs

L-Series:

1. 4' 0" X 10' 0" single door
2. 8' 0" X 10' 0” double door or pairs

H-Series:

1. 4' 0" X 8' 0" single door
2. 8' 0" X 8' 0” double door or pairs

PW-Series

1. 4' 0" X 9' 0" single door
2. 8' 0" X 9' 0” double door or pairs

SL-Series:

1. 3' 0" X 8' 0" single door
2. 6' 0" X 8' 0" double door or pairs

T-Series

1. 4' 0" X 9' 0" single door
2. 8' 0" X 9' 0” double door or pairs

Fire ratings for doors are influenced by (but not limited to) the following items:

Maximum doors size for Fire ratings is influenced by (but not limited to) the following items:

1. Steel gage of the door - example: 20 gage door constructions are approved for smaller door sizes than what is shown above
2. Frame applications - some frame applications are approved for smaller door sizes than what is shown above
3. Hardware applications - some hardware applications are approved for smaller door sizes than what is shown above
4. Glass sizes, glass type and glazing compound