A storage rack includes a plurality of connecting members and wall sections. Each connecting member includes a hexagonal base from which three engaging portions defining an engaging end project for allowing wall sections to be joined. The engaging portions are equally spaced on the base and each includes a bottom and three engaging fins. The engaging fins include engaging slots defined therebetween. Each wall section includes a sheet and a frame. The sheet and the frame include a bend defined therein. The sheet includes a plurality of folded sections formed therein. The wall section is received in the engaging slot. The connecting members and wall sections can be implemented to form a plurality of hexagonal storage rooms.