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Colossal High Tunnels & Hoop Houses

This structure is called colossal High Tunnels, because of it's superior dimensions and extra growing space. Standing 15 feet tall and 42 feet wide, this high tunnel is ideal for large commercial growing operations, including hemp and medicinal growing. It also comes in a range of lengths so that you can fit the structure to meet your current needs, or have some room for your operation to expand in the future
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42'W colossal High Tunnels provide more space for growing and tending your crops. Extend your growing season! Let a High Tunnel enhance growth, yield, and quality! Outgrow your competition. Grow all year long!


  • It is constructed from 14 gauge, 1.90" OD USA-made, triple-galvanized structural steel tubing.
  • Vertical, 1.90" OD center row supports add strength and durability.
  • Sidewall height: 4'. Ridge height: 15'.
  • The cover is a single layer, 6 mils 4-year greenhouse film.
  • Easy to ventilate with our exclusive "Twist-of-the-Wrist" Roll-Up Curtain Assembly.
  • Ends are manufactured from 10 oz., 22 mil translucent fabric with 4 zippers and now feature our heavy-duty, industrial-strength #15 Big Zip Zippers.
  • Ground posts and two rows of 1.315" OD purlins are included.

Top and bottom baseboards are recommended. Our Recycled Plastic Lumber, sold separately, comes with a 50-year warranty and is ideal 

Also Available Separately:

  •  shade cloth