Garage Concrete Ledge for Door Replacement
My biggest concern would be: Water drainage issues.
If I am properly understanding the layout you are describing:
That step up you have for your garage concrete pad is to keep water OUT and away from your house (specifically your garage area).
By your description, If you level these 2 evenly, you are looking at the serious possibilty of water coming in. (NOTE: you stated that the pavement 'sloped' into your garage)
On the last garage I built onto a customer's house, the water was an issue even without a 'slope' (it always is going to be an area of attention with garage entrances). We attached it onto the side of the house, and we had to put a drainage system in, right in front of the garage door area, and ran it away to a catch basin.
About 8 months ago, we also did a basement remodel much like you are describing. The garage was located at the side of the home & was already converted by the previous homeowner into a living area with a slider and walkout ground-level P.T. deck area. There was never pavement put down, just dirt originally. Was there a drainage system there? Most likely. There was about an 8 inch drop-off as well, below the slider. That whole area was filled with gravel added to aid water drainage.
The deck was built at the same height as the door threshhold level. Again, this was existing. It all seemed fine, but I would still would have had a 'drop down of at least 2 inches for the deck below the slider because of this lower-area location (I live in New England and snow can build up there as well)
All in All, I would be very concerned and apprehensive about 'leveling' that area off.
Additionally, if and when you do convert that garage area into a living space, make sure you level off the floor with a concrete type leveling mixture. As you probably already know, those garage pads are built with a slope in them.
Last edited by AtlanticWBConst.; 05-17-2006 at 05:35 AM.