If you are under 2009 irc you may use the same type wood frame and sill as you have on any other entry doors of the house and you must use either a code prescribed door or any door carrying a 20 minute fire rating.
Door from garage to house code alberta.
National energy code of canada for buildings 2017.
Building codes for exterior doors.
The following codes in the building discipline are currently in force.
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.
This door assembly is not specifically required to be fire rated.
The requirement for attached garage walls and ceilings to have an interior finish in accordance with sentence 9 35 4 1 2 of the alberta building code 2014 abc 2014 is to retard the effects of fire on areas beyond its point of origin.
Exterior doors in homes and businesses not only provide security but they also serve as a vital means of egress during a fire or other emergency.
When i said less door i should have been more specific.
One could make the argument that given the wording in irc 302 5 1 a fire rated door or its equivalent is required.
One example of a problem area is the entry door between the garage and the residence.
The international residential code table is similar.
By the way cutting a hole in the door to install a pet door flap voids the 20 minute rating.
For instance there are fire rated doors that have a 20 minute several hours rating and they can be selected to meet fire department code requirements for residential spaces check your condo or townhouse local building codes for any requirements of fire rated entry or house to garage doors.
National building code 2019 alberta edition and national fire code 2019 alberta edition.
This alberta specific requirement was implemented based on the high intensity residential fires hirf report.
Door to house this is the only place where any fire rating is specified.
In force from may 1 2015 to november 30 2019.