Additional boards may be needed to extend the height of the rink above you single board height. When deciding how high to build a board, keep in mind that an extra few inches will also help maximize puck retention when playing hockey, the extension brackets are perfect for such area like behind goals etc. The Extension Brackets are designed to accommodate the connecting of all board sizes. They have numerous screw holes, spaced 2" apart, allowing for maximum installation flexibility.
What you get:
4 x Heavy Duty Steel Extender Brackets
24 x #8 X 1 1/4" long wood screws