While the code does not specify a minimum width for the door to the garage most jurisdictions require a minimum 32 door.
Fire door kitchen to garage.
Premium 6 panel primed white steel prehung front door with 30 in.
If the door is not solid wood or steel honeycomb and at least 1 3 8 thick then it must have a 20 minute fire rating.
And can be used with new masonry and drywall construction when the wall is being built.
The code requires the door to be 1 3 8 solid wood 1 3 8 solid or honeycomb core steel door or a 20 minute fire rated doo.
The frame is compatible with walls that have a thickness of 4 7 8 in.
While the six panel door shown below gets awfully thin at the panels this is still a 20 minute fire rated door so there s nothing wrong with it being used between the house and garage.
Door to house this is the only place where any fire rating is specified.
Re doors between house and garage.
The door panel and frame are both made from galvanneal steel to secure and protect your home or building.
3 panel craftsman primed steel prehung right hand inswing front door.
By the way cutting a hole in the door to install a pet door flap voids the 20 minute rating.
Right hand outswing and 4 in.
How to remove existing garage door and install new fire rated door in modern house.
The door and frame assembly is fire rated with a 1 1 2 hours fire rating.
I would like to put a cat door in the door from the kitchen to the garage but i suspect this would not be up to code maybe not so much because of fire but because of the danger of carbon monoxide.