Extend The Growing Season: Our walk-in backyard greenhouse tent creates a large space for you to start up seeds and protects plants from fluctuating temperatures. Extend the growing season and end your winter woes in milder climates. Roll-Up Doors, Windows & Sidewalls: The large, zipped roll-up doors provide easy access to your green greenhouse, and the mesh windows keep out unwanted guests with wings. Multiple openings allow for cross ventilation, so temperature and humidity are in your hands. High-quality PE Cover Outdoor Greenhouse Info: Overall Dimensions: 116.25' L x 78.75' W x 78.75' H. Window Dimensions: 16.5' L x 14.25' W. Recommended that 1-2 people assemble it.