The Lippert SolidSteps like the part # LC678028 are universal enough for RV doors that you really only have to make sure you have the correct kit based on the door width. The # LC678028 is for 28 inch to 30 inch wide doors like what would fit your RV since it has a 28 inch wide opening. The hinge width has already been taken into consideration. I attached a picture that shows the vertical height too though incase you want to compare the measurements to your RV.
The second pictures show... view full answer...
The best cover for your American Hauler AWAFX8528 V-nosed snowmobile trailer that measures 28 foot in length would be the Adco Olefin part # AD87ZR which is the correct length, has adjustment straps at the front so that it can fit the v-nose shape of your trailer, provides the best protection, and also installs the easiest. view full answer...