Load your truck one quarter at a time, as solid as possible from floor to ceiling. Tie down each quarter with rope and fill open spaces with small boxes. A tight fit keeps the load from shifting. Load largest items first. Place heavy boxes on the bottom.
Place boxes on top of each other if they are equal in strength.
Smaller boxes on top. Long items on sides. Mattresses, box springs, sofas and table tops. Mirrors go upright. Odd shaped items go along the walls.