If the side rails that connect together and the holes are off swap the 2 rails and the other 2 holes should line up right see pic. Other then that easy to set up would recommend either a ratchet with Allen head or impact gun as that makes it much faster to assemble.
Important information
If the side rails that connect together and the holes are off swap the 2 rails and the other 2 holes should line up right see pic. Other then that easy to set up would recommend either a ratchet with Allen head or impact gun as that makes it much faster to assemble.