Secure and contain oversized loads for light truck /ute

My idea temporary extends the length of any ute or light truck with an opening tailgate. The benefit is to give more space and contain oversized material like timber, pipes, fishing rods, camping gear or whatever you can't fit into the standard ute length.

The device is mounted in the to the inside of the ute. When the tailgate is down the device can be moved back and forth in increments adjusting to the size required