The poles can be placed 8 to 10 feet apart. If there is any significant air movement that pushes the plastic you will need to pull them in closer together, anywhere from 4 to 8 feet.
If the poles are placed closely together you may need two or more people to attach them to the plastic and raise them into place.
The GripDisk™ slide stoppers should always be used especially on hard surfaces. Two GripDisk™ slide stoppers come in every Kit 20 package.