Came across these plans I have had for years and thought I'd share. Fast and precise way to build a smallish green / hoop house. If you desire you can replace PVC to conduit as well for that little extra something.
I would edit these plans with the following comments:
If you use PVC use schedule 40 and do not use 1/4 inch as suggested...use one and a quarter inch PVC for optimum strength and cost efficiency.
Unless your planning to disassemble this structure or use shrink wrap as a skin, glue your parts together.
Run a stringer (rigid pole) down the length of each side of the hoop about half way up and attach with U clamps
Finally use a wooden base board around your structure for securing the skin and anchors.
[acro]https://share.acrobat.com/adc/flex/mpt.swf/ext=pdf&docId=fef6d8b9-d49f-406c-8e38-768166abd10d&lang=en_US[/acro]