Sloping garage slab

[John_Charles]

Hello

 

I am doing a renovation on an existing property that has had an additional garage built before another extension was built over the top of both the new and old garage.

 

I've discovered that although the footings are consistent around the outside of the garage, the rear 6' of the internal slab actually slopes down to a further 6" below the existing grade to meet with the now steeper slope driveway.  Ie it's creating a 'ramp' in a concave style to the garage rear section and means the garage door sits lower than the garage floor grade (it has some decent cracks in it so I'm considering chopping it out but that gives me other issues regarding approach slope....).

 

My question is, as a work around I'm simply setting down the garage door at a lower bottom height to simulate this in the drawings to the city, but would like to know if there is a better way or other suggestions?

 

thanks

 

Cheers

[javatom]

That is probably the quickest way to do it.  You might also try lowering the floor of the garage by 6".  You could then add the slope and higher portions of the slab as a P solid.  You might have to do some custom drawing to the section views to make it look right.

[VHampton]

Poly-line solid over the slab is the best way. 

Integrate the Chief made slab when drawing the solid for Cross Sectional views. 

 

[DRAWZILLA]

You could also remove the floor and add a ramp.

[John_Charles]

Thanks everyone.. appreciate the input...