The run was initially just one big run, but we did have to separate the rooster. We can use that section later as the "introduction" section when we decide to add to the flock. You can also see that we added corrugated metal over a section of the run - it is over where we enter the run and goes to the coop itself. We used 1x1 pieces of wood, screwed them just under our barn roof and then onto the cross piece of the run. We then used roofing screws to secure the metal. This provides some protection from the rain and (we hope) the snow so that we can get to the coop without having to shovel a path.