Garage Floor Requirements?

Reply

  #1  
Old 05-05-11, 06:02 AM
W
Member
Thread Starter
Join Date: Dec 2007
Location: Kentucky
Posts: 359
Received 2 Votes on 1 Post
Garage Floor Requirements?

I have looked for garage building codes and can't seem to find my answer. Any help would be appreciated. I would assume that a garage floor needs to be made of non-combustible material? I would assume that the entire floor would need to be made of this material, even areas that won't be used for parking?

Help me brainstorm here. Here's my situation. I plan on building a detached garage on a gentle slope. I plan for the parking area of the garage to be about 25' deep, and then an additional 10' of shop area in the back of the garage. The way the land slopes, There would be space under the rear of the garage (where the shop would be) to have an additional storage space. Like a walkout basement.

Would the entire main floor have to be concrete, or could I transition to something else for the shop area? I would assume that this idea would be cheaper than running steal beams and poured concrete over the 10' basement area?
 
Sponsored Links
  #2  
Old 05-05-11, 06:58 AM
P
Temporarily Suspended
Join Date: Jul 2008
Location: NY
Posts: 10,986
Received 0 Votes on 0 Posts
If you intend to file plans with the local building dept, I would hire an architect. The floor would be concrete with the proper footings. An architect would know what's required. My guess is that a ribbon footing is required.
 
  #3  
Old 05-05-11, 08:23 AM
P
Group Moderator
Join Date: Mar 2003
Location: NC, USA
Posts: 21,880
Received 359 Votes on 329 Posts
Generally a detached garage with no finished living space (especially bedrooms) does give you more flexibility than if it were attached to the house. There may be a distance that the garage must be away from the house to free you from many of the fire related codes. I don't know of any codes that would prevent you from having a wood framed floor for the shop area and honestly I don't know of a code that says the parking area needs to be concrete. You would have to follow your codes for general construction of a permanent structure like: footings, walls, roof and electrical...
 
  #4  
Old 05-05-11, 09:45 AM
tldoug's Avatar
Member
Join Date: Jan 2009
Location: USA
Posts: 317
Received 0 Votes on 0 Posts
I doubt it's necessary to hire an architect for a garage design that doesn't include living space.

IRC2009 (current for us here in NM) states:
"R309.1 Floor surface. Garage floor surfaces shall be of approved noncombustible material.The area of floor used for parking of automobiles or other vehicles shall be sloped to facilitate the movement of liquids to a drain or toward the main vehicle entry doorway." (Their emphasis.)

"Approved" is a function of your local building codes, so you need to check with your planning and zoning/code enforcement department(s) for what they approve.

Pilot Dane nailed it on separation. There is a minimum distance inside of which the garage is considered to be attached for fire code purposes. Primarily this means you will have to provide at least 1-hour fire rated wall coverings on the side facing the house if the separation is too narrow. Again, check with your local officials.

Good luck with your project.
 
  #5  
Old 05-05-11, 11:07 AM
D
Member
Join Date: Aug 2009
Location: USA
Posts: 4,947
Received 0 Votes on 0 Posts
If the wood floor wasn't an issue as far as fire code, you would probably have to have a wall or large curb to prevent vehicles from driving on the floor that wouldn't be able to support them. You should talk to your local building department to see if the wood floor is a problem. I think you might be able to do it.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description: