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louie01 01-19-2009 11:48 AM

raising a garage floor
How can I raise a garage floor, level with the rest of the house.
Is there any website I can go to, with illustrations or images so I can see.I am new to this, but I know I can do this project, and so If I can see it then I have a better ideal.The garage is a normal garage, it goes to a "shureview" house that the model.It is for a house I have down toms river, nj.I want to converted to a room, but I was thinking of rasing it to meet the rest of the house.How much wood etc, I need.thanks-louie

concretemasonry 01-19-2009 02:35 PM

How you do it and what you need will depend on what you have.

How much lower than finished level of the house?

Is the slab l, flat and level or does it slope to the door for drainage or toward a floor drain?

You should also consider insulation and a vapor barrier.


Bondo 01-19-2009 04:28 PM


You'll probably have to Raise the garage 1st, to raise the floor/ slab under it.....

louie01 01-19-2009 06:07 PM

The house sits on a slab.I still need to know how to raise it "the garage floor" .And Iwas wondering if there is a website I can go to.-Louie

Bondo 01-19-2009 06:19 PM


There's Lots of Ways....

You have to set atleast Some parimeters,...
How High are we talking,..?? What does it have to match too,..??

With even a few of those answered,...
We could give you an Idea of what to Google for....

Ron6519 01-20-2009 06:32 AM


Originally Posted by louie01 (Post 215785)
The house sits on a slab.I still need to know how to raise it "the garage floor" .And Iwas wondering if there is a website I can go to.-Louie

You would build a frame on the floor, just like you would if you were building a frame for a shed. The size of the wood framing material would depend on the height difference between the slab height and the finished floor height in the house. You would also need to take into consideration the type of finish floor you were going to put in. A tile floor would need a thicker subfloor then if you were just putting in carpet.
The frame part could be done two ways. Since the garage floor slopes to the front, you need to compensate for the slope to get the floor level. You could use all the same dimension framing lumber and shim the low side to the level plane and add support under the various gaps. The other way would be to scribe the framing material to the slope and cut the slope directly onto the lumber. This would need fewer shims.
As mentioned before, you would apply a vapor barrier over the slab and put the framing over the top. Then you would insulate between the frame and sheath the top.
If you wanted to put radiant floor heating, the scenario would be different.
The post would need to be more specific to be helpful.

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