09-12-2011, 05:38 PM
I'm not sure, but I suspect 'inverted' brackets need to be stronger (therefore bigger) to handle the load. Maybe someone who has more experience can chime in...
EDIT: On second thought, maybe not. Metal under tension (which is what an inverted bracket would be in) is more efficient than metal under compression (due to what engineers call 'crippling' loads).
EDIT: On second thought, maybe not. Metal under tension (which is what an inverted bracket would be in) is more efficient than metal under compression (due to what engineers call 'crippling' loads).