Is a fire-rated door required between an attached garage and the house?

Thursday, November 28, 2019

There are three door choices in the International Residential Code (IRC) and the Residential Edition of the Florida Building Code (FBC), and all of them have enhanced fire resistance compared to a regular interior door, but only one has the fire resistance rating spelled out:

  1. Solid wood door not less than 1-3/8” thick.
  2. Steel door, with a solid of honeycomb core, not less than 1-3/8” thick.
  3. A door with a 20-minute fire-rating.

    For more details, see our blog posts What are the building code requirements for a door from the garage to the house? and What are the code requirements for fire separation between an attached garage and the house? 

• • • • • • • • • • • • • • • • • • • • • • • • • • • 

  To learn more about doors and windows, see these other blog posts:

What causes sweating (condensation) on the inside of windows in the winter? 

Is every exterior door of a house required to have a landing outside? 

 What are the small slots at the bottom of the outside of my window? 

Why does condensation form on the outside of some windows and not others in the morning? 

Why is the garage door track a white tube? 

What is the raised metal plate on the floor under the garage door?

 Why do I have to hold down the button to close the garage door? 

How can I tell if a window or glass door is safety glass? 

What are the code requirements for safety tempered glass for doors?• 

Should a front door swing in or out? 


How many exit doors are required for a house?

 How many exit doors are required for a mobile/manufactured home? 

Are openable windows required to have window screens? Will windows with no screens pass a home inspection? 

Can a bedroom door open into the garage?

What is "low-E" window glass? 

What does ANSI 297.1 on glass mean?

Why is a double cylinder deadbolt lock on an exterior door a safety hazard? 

How can I check my garage door to make sure it is safe?  

What is an egress window?

Does a home inspector test all the windows and doors in a home? 

How difficult is it to change a window to french doors or a sliding glass door?

How do you determine if a door is left-handed or right-handed?

Why are window security bars dangerous? 

What are the common problems you find inspecting windows?

What is causing a foggy haze on my windows? 

What do those numbers on the manufacturer's stickers in new windows mean?

What does a home inspector check on an electric garage door? 

• What is the tempered label on glass at windows and sliding glass doors called?

Why is pressure washing double pane windows an expensive mistake? 

• Do I need to have two exterior exit doors in my house? 

• When is safety glass required for windows at stairs and stair landings?

   Visit our DOORS AND WINDOWS page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.

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