A finger wedge barrier system includes a frame having a top side and a bottom side, a laterally extending beam trough located along a front wall, and laterally spaced apart finger troughs extending axially from a rear wall to the beam trough, each of the finger troughs is open at the top side of the frame and formed between a cooperative pair of rails; a first cavity formed between a first pair of the laterally spaced apart finger troughs, the first cavity open at the top side and the bottom side; a second cavity formed between a second pair of the laterally spaced apart finger troughs, the second cavity open at the top side and the bottom side; and a finger wedge barrier having fingers aligned with the finger troughs, each of the fingers having a top surface, a bottom surface, a rear end pivotally connected to the frame, and a blocking member extending perpendicular to the fingers and connected at front ends of each of the fingers.