Also where did you get said materials?
I’m trying to build a cover like a hoop house cover for my backyard so i could protect the potted plants and so it doesn’t turn until a mud pit with my giant dogs.
I want a glass greenhouse. I have been accumulating glass for a while now, all for free. Stacks of old single pane storm windows pop up for free on Craigslist and Facebook marketplace. So are old windows with double panes you can disassemble.
Once you look up what crappy greenhouse plastic goes for, it makes it easy to justify the effort. Heck you don’t want to even look up how much it would cost to use new glass.
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I used palram twin wall 8mm polycarbonate panels installed on my garage frame to make a greenhouse, which I don’t really recommend for a few reasons (high cost, difficulty in effectively sealing them, complete inability to clean the inside if they aren’t sealed properly).
Do you mean to cover your entire yard? What is the area of the place are you wanting to cover (in ft² or m²)? Are you wanting it to be something you only use in the rainy season or something more permanent?
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Sourcing the right metal frame parts is enough of a hassle for me that wood is the only option. Other than really overpriced premade ones of questionable quality, of course.
Now you’re speaking my language 
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The best covering I’ve used is Palring 175. It outlasted 6 mil 4 yr poly by 3x at very little more cost. For a single layer Solarig might be better because of increased light diffusion.
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Back when i was thinking about doing the same thing with my little hobby nursery…i was going to try one of these ‘tarps’ versus plastic myself… no clue if they would be good enough or not but seemed to fit what i needed if i was going to do it with ease. I like easy and cheap myself… YMMV and im sure that there are much better answers.
Two issues with the Amazon item. Nowhere does it provide light transmission information. And there’s no warranty. The Solarig has a 6 yr warranty, Palring 7 years.
The tarp would work for certain applications. But isn’t a real GH covering.
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Probably a dozen more issues… but for my use it was to protect during the winter and early spring and my plan was to pull it off each season and let natural sunlight do its thing. Again just a hobby for me. I figured i could get a good life out of it with having it stored in spring summer and fall… Plus it being a ‘tarp’ seemed easier to put on and take off year after year for me…
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I bought PVC fittings and 4-yr rated poly film to erect 10’x20’ greenhouse with whatever number of 10ft 1" PVC pipes about 4 years ago.
Circo Innovations was the source for the fittings.
Dont recall where i bought the poly film.
I’ve never gotten around to erecting it…haven’t been able to pick a spot where it would get adequate sun without being in a spot thats gonna catch so much wind that it’ll be torn to shred or blown away altogether.
And, I have a hard time justifying the expense yo heat it just for starting a few tomato/pepper seedlings and overwintering a few ornamentals.
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It’s 33 x 55. I already bought the greenhouse plastic 
just trying to figure out how to do that metal pole thing now.
It would be temporary and for the 4-5 months of a rainy season that we have. After that, i want to put it away for later use at another location once we move.
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You might be able to borrow a pipe bender from a local tool library. Someone told me they thought they had one in the West Seattle tool library when I was considering that option, but I never followed up.
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There’s such a thing called a tool library? 
Do you know if pvc pipe is cheaper or easier?
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Working with steel is a massive pain and requires very expensive tools. People use it because it’s stronger than any alternative for the same size.
If stability is not an issue use PVC.
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If I’m not mistaken, PVC is not recommended for a greenhouse frame because it damages greenhouse film. It causes the film to deteriorate. Maybe not an issue in a few months but it is over a few years or less.
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