Just as the name implies, the Spanning Bracket is used when support is needed for a span of countertop where there's support on both ends, but nothing in between. This bracket is perfect for creating a floating desk between cabinets.
The Spanning Bracket is also used where you have overhangs on opposite sides of a support cabinet. If you have an overhang on three sides of a cabinet the spanning bracket can be substituted in the island system to provide support.
Support Brackets: Spanning