Originally Posted by MadDad
I don't know how I would actually measure that?? It looks level, but to determine that the road or driveway would have to be perfectly level.
The drive way need not be level, just an even surface at any angle...
Usually the floor line of a Class C is evident from the outside of the vehicle. Take a measurement at the front floor to ground and another at the rear floor to ground. In my case there is a 4 inch difference (rear 4 inches higher then the front).
Then measure from the front to back, in my case it was 240 inches.
Now use the 1 in 60 rule which states "an arc of 1 inch in 60 inches will produce a 1 degree angle".
So, in my case 4/240 = x/ 60 Solve x = 1 degree.