Step 2: The frame for the Deck
Lash each end of the third shorter pole pole across and over the middle of the two longer poles. Then lash the third and forth long poles between the middle of the three shorter ones cross-ways poles. The distance between these two long poles should be just wider then the narrowest side of one of the empty containers. You should now have a rectangle consisting of four long poles crossed by three shorter ones laid on top of them.