>> What grade or weight do you use?
First I used a bag that some appliance came in.
Then I bought the cheapest 2-3 mil plastic that I saw in Home Depot. It was foggy, not clar, so i always wondered how much light that blocked.
When I was at a nursery/greenhouse wholesale place, I saw some guy come in and buy a roll of plastic for HUNDREDS of dollars. It must have been big and thick and professional quality. I just knew it was way out of my budget range.
Short answer: I'm pretty clueless about suitable plastic for a low poly tunnel!
