plan the final connection before the run becomes an impossible last joint fitting orientation & field verification impossible last joint final duct connection no room close the run trapped fitting insertion path choose the final connection while there is still room to move, align, and install the joint hardware. the last opening in a run needs an insertion path and tool access, not just matching dimensions. both ends of this run will be fixed after the next section. i checked the tool access and insertion path-do you want the final connection here or closer to the equipment where we still have movement?