FLOOR KEEPS DISAPPEARING

[DenisonDrywall]

I have a storage room under a portion of the garage. I either end up with a floor at the garage level or at the basement level. It won't let each room have its own floor.

   

 

structure set up for the garage room then structure set up for the basement storage.

 

 

if i put in the floor for the basement at its correct floor height it does this

  

 

And shows this for the garage area above

its only happening in this one location. I tried to make that area of the garage its own room separate from the rest of the garage and it still does the same thing.

Thanks,

Jennifer

[JiAngelo]

You need an invisible wall defining the storage area separate from the garage.  It will have a slab floor and the room under it will have its own floor.

[DenisonDrywall]

I already have tried that and it didn't work

[KenL-sdd]

34 minutes ago, DenisonDrywall said:

I already have tried that and it didn't work

If all else fails POST your plan.

[JiAngelo]

Sorry, I was on mobile.  Let me try and explain it better.  Currently you have "room supplied by floor below" for your garage.  Then you split your foundation for the rear walkout under strescore slab.  This works fine for the front garage, but you want two floors on that side of the garage and "room supplied by floor below" dictates one floor at whichever height you set it.

 

I was suggesting you add an invisible wall between front and rear garages like so,

 

Change to foundation level and 

• Open that rear garage room. 
• Uncheck "Room supplies Floor for the Room Above" .
• Change your rough ceiling from 8" to 10' 1-3/4" (per your details above)

In our area, garage floor is 12" below top of wall (TOW).  So what I did above now looks like this.

 

Based on your pictures, I changed the front garage room "Floor to SWT = 0" and added the glass panel door.

 

One problem with this method is your rear garage places the slab on top of the wall, while the front garage slab is captured inside the foundation wall.  The slab on top of the wall extends the siding down to the lower top of wall in that area.

The problem compounds if your strescore slabs are like ours, 8-10" thick hollowcore slab w/ 2-4" topping poured over it to be level with garage floor and you change your floor definition here to include the 8" stresscore slab below the garage slab.

 

I forget the steps that could eliminate this.  Instead I looked back at the houses we've built with those strescore slabs and it appears I've always let the foundation supply the floor for the room above and then manually built the stresscore slabs underneath the garage slab and manually built the lower floor slab (including the brickledge details for the strescore slabs to bear on.  Here's a quick example.

 

 

I hope this helps.