Easy Way to Determine Drive Way Slope Grade to Determine if Trailer Dolly Can Work

Updated 02/18/2026 | Published 02/16/2026

Question:

How do you know what grade your driveway is in order to work with this?

asked by: Sharon S

Expert Reply:

Hey Sharon, this is a great question but I've found the slope degree of ground before with just my iPhone. If you open the Bubble Level app on your phone (I am sure there's an Android version too) and set your phone on the ground it will tell you how many degrees it is from being level. If your driveway is flat you can set down a long board first and then set your phone down on top of it.

The Parkit360 Force Electric Trailer Dolly # PA96VR that you referenced can be used on a grade that is up to 6 degrees. Let me know what grade you have if you get a chance!

expert reply by: Jameson C