The 40ft and 20ft are the first two of four containers promised to the hospital.
The containers come filled with hospital supplies, including beds, mattresses and X-ray equipment.
This move is to beef up the hospital facilities to a level 5 status.
Prior to receiving the status change, Gerehu Hospital was a major urban clinic. It is slowly undergoing changes to fit the status.
Over the past months, it has seen an increase in senior specialist medical officers from about 2 to at least 6 to date.
This number is still to increase.