to any finish wall items 3 4 or 5 to provide shelf board support it is to be noted that this concept as shown in fig1 always provides rigid support members studding items 6 and 9 for securing the shelf brackets items 1 and 2 to and never is the plaster wall board paneling etc of the finish walls items 3 4 or 5 required to become load bearing elements also this concept provides for a very quick installation time of the shelf brackets items 1 and 2 to the side walls items 3 and 4 as only four number 12 sheet metal screws item not shown are required this is also a very strong assembly as just one number 12 sheet metal screw can withstand a shear load in excess of four hundred pounds referring to fig2 the blank cut from a sheet of metal is used to make the right and left hand shelf brackets fig3 and fig4 to form the right hand shelf bracket fig3 the blank fig2 has tabs items 2 3 4 5 6 and 7 bent forward perpendicular to the main body item 1 and along fold lines items 8 9 10 11 12 and.