We are remodeling our basement room by room. The basement had some leaks which I fixed by grading the outside and cleaning out the underground drainage system. The first 2 rooms I used dricore as the sub floor so if the basement leaks or floods the flooring will be protected. These rooms had flat floors.
Now I am to the main room which has a floor drain and a slope from the foundation wall to the drain of around 4. How do I level this floor with keeping the floor drain? I cannot frame a floor because of the ceiling to floor height requirement of 7. Unfinished it sits at 73. Can I take 2X4 and cut them to match the slope of floor so the top of the 2x4 is level with the base of the wall. Or a ½ below and then put ½ ply on top. I dont really like this plan and am looking for other options.
Seems like you will need to build a fake floor using wood. Cut the wood from 3 1/2" to 0 you can use 2 X 4 or 4 X 4 and use 5/8" or 3/4" plywood on top. You can also use self leveling concrete but it will be very expensive. as far as the drain you might need to raise it up a bit.