I am trying to determine the weight capacity of a steel storage shelf i am making. The shelf will be 119in long with a 10in upright every 37in. The shelf will be made out of 2x2x1/4 HSS. In order tod etermine how much it can hold, do i determine how much each 10in column can support with a force straight down? if doing that i determined the reactions at each upright for one side, R1= 2/5WL R2= 1.1WL R3= 1.1WL R4= 2/5WL W= max uniform load applied (unknown) L= length (37in) Just curious if im doing this correctly or if im forgetting about something. thanks in advance!!