How to Build a Hoophouse, Part 2 (Bending the Hoops)

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Part 2 (bending the hoops) of the slideshow showing the construction of a low-cost, "Hanley-style" hoophouse, step by step, from the Kerr Center for Sustainable Agriculture in Oklahoma.

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How to Build a Hoophouse, Part 2 (Bending the Hoops)

  1. 1. Bending the Hoops
  2. 2. Use straight 24-foot lengths of Allied galvanized one-inch square 16 gauge steel tubing, with a clear coat over the galvanizing.
  3. 3. Use straight 24-foot lengths of Allied galvanized one-inch square 16 gauge steel tubing, with a clear coat over the galvanizing. It takes 18 hoops to make a 100- foot-long hoop house. After bending, the hoops are 17 feet wide and 7-1/2 feet tall.
  4. 4. Benders for the tubing can be built using these free plans, available at www.kerrcenter.com .
  5. 5. Completed hoop benders are also available for sale from Tod Hanley; his contact information is also available at www.kerrcenter.com.
  6. 6. To bend the hoops, slide the bender along a piece of square one-inch tubing, pushing down on the handle of the bender to form the correct curve.
  7. 7. Bend each tube halfway, then turn around and start from the other end. This minimizes the amount of bent tube sticking up in the air, and makes it easier to control
  8. 8. Before bending the two end hoops, pre-mark them for the centerline and for the eyebolts. After the end hoops are bent, drill 1/4” holes for the eyebolts.
  9. 9. Drill 3/16" holes in the wiggle-wire channel at one-foot intervals.
  10. 10. Attach wigglewire channel to the end hoops by drilling through the holes in the channel with self-tapping sheet metal screws.
  11. 11. Make sure that the hoop ends are kept exactly 17 feet apart while attaching the wiggle wire channel. Once the channel is attached, the hoop will be very difficult to bend.
  12. 12. Use pan-head screws; hex-head screws will cut the plastic when it is attached.
  13. 13. Leave the last (lowest) hole on each side of the end hoops without a screw until after the hoop is placed on its pins. This way, the screw end will not block the hoop from sliding down over the pin.

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