This center opening is enclosed with 3 panels, with a door panel in the middle. Simply roll up the door panel  and the side panels remain securely attached to the floor.

There is no minimum or maximum on heights and widths. We can build any size you would like, however, once curtains get wider than 10-12 feet they can become difficult to roll up or even secure in windy conditions.  It may require assistance to properly roll-up and secure oversized curtains. We often suggest splitting your larger opening into two smaller curtains that zip together and fasten to the floor in the middle.  This adds rigidity to your system and allows you to rollup each curtain independently. We can also offer guidance on adding temporary or permanent posts to your spaces framework.