A hand truck and a set of car ramps, 2x12's, etc will make your life alot easier. 20+" oak is heavy, but definetly movable with one person and a handtruck. Try to park downhill of the trunk and use gravity to your advantage. You can also cut a cookie or 2 about half as tall as your trailer, placed right at the back end of the trailer, and use it to flip the rest of your logs onto end over end. At this point, enough of the round should be above your trailer deck. Tip log over so top is now resting onto the trailer deck. so another flip or shove, and you are in business. No lifting. Just rolling and flipping.