The trailer has a fixed layout, and it only all fits when it goes back that way. Loading is unloading in reverse: the floor sections go in first and lie flat, then the game elements go in on top and in front.
1. The floor sections, flat, in two stacks
The floor sections lie flat on the trailer floor in two stacks: one against the front wall of the trailer, and one nearer the door.

- Start with the stack against the front wall. Lay each section flat, square to the one below it.
- Then build the stack nearer the door the same way.
- Lay the loose straight wall strips across the top of the stack nearest the door.
Keep the stacks square and tight to the walls, so nothing shifts on the road.
2. The game elements on top

- Load the game element boxes last, on and in front of the floor stacks as in the photo.
- Keep the pyramid corner boxes upright.
- Put the cart back in the trailer.
Before you close the door
- Count the fields' worth of floor sections. If your event used only three fields, the other three should still be packed where they were.
- Look for anything left behind where the fields stood.
- Close the trailer door.