Grinding Concrete

[Farmall Cub]

I have put a garage door in where one did not exist before.
Where I cut the wall out, the floor under it is flat. I need to put an angle on it to shed water as it is on the weather side.
What's the best way to add a nice slope to a 16' section of concrete?​

 

[Garage Flooring]

Would a garage door threshold be an easier way to go?

http://www.garageflooringllc.com/garage-door-threshold/

 

[LegacyIndustrial]

I am guessing you are talking about the threshold/jamb area.
You can try to grind it away with a scarifier and then smooth it up with an epoxy patch when complete.

You could also use a threshold seal or use the epoxy patch to make a speed bump/dam in front of the door.

 

[tlmartin84]

7" Grinder with a double row diamond grinding wheel. Bevel the edge to the desired depth, strike a chalk line across the back edge and grind from the bevel back to the line.

1/4" bevel across the front sloped back 6-8" shouldn't take more than a few hours to grind.

 

[Farmall Cub]

Thanks
A threshold would be my last option.
I am sure they work great but I would rather have gravity do the work.

 

[James-W]

Do you have any pictures of the area you want to grind?