Finally, we finished the MuH frame.

Frame collapsed (1.8 m wide, 2.6 m length, 1.5 m height approx.)

First step, expand the back part. 

Raise up the Roof, then pull the shelf out from each side.

After expand, we will get 1.8×3.6×2 m space inside + 2 of shelves (0.4x2x0.5 m each).

Top of the shelves while expand can be use as outdoor counter.