Abstract: A cartridge fed stapler that is fed with a cartridge containing a plurality of staples. The cartridge fed stapler includes a head and a handle. The head is for holding a staple driving mechanism and is hollow. The head has a front wall, a back wall, a top wall, a bottom wall and a pair of opposing side walls. The back wall of the head has a bore therein and is adapted to couple to the handle. The staple driving mechanism is adjacent to the front wall of the head. The handle has a proximal end and a distal end. The proximal end of the handle is coupled to the bore in the back wall of the housing. A cartridge for holding a plurality of rows of staples is adapted to be removably placed within the staple hammer between the distal end of the hammer and the driving mechanism. At least one spring is located within the handle and is adapted to urge the rows of staples toward the staple driving mechanism.