We are going to install luxury vinyl plank flooring in our basement. This product clicks together and floats, much like laminate.

The cement slab/subfloor is fairly level, with one exception: There is a 36"W walkout door, and the floor slopes down about 1/2" over the 6-8" before the door threshold. 

Is this 1/2" descent enough to worry about when installing the floor?

If so, any suggestions?

Thanks,

Jim