Boxes and crates are not the same. If the sheathing of the container (plywood, lumber, etc) can be removed, and a framed structure will remain standing, the container would likely be termed a crate. If removal of the sheathing resulted in there being no way of fastening the lumber around the edges of the container, the container would likely be termed a wooden box.

Performance is strongly influenced by the specific design, type of wood, type of fasteners (nails, etc), workmanship, etc.