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Posted: 1/15/2021 4:07:17 PM EDT
Link Posted: 1/15/2021 4:27:04 PM EDT
[#1]
Nursery supply
It tractor supply type place
Link Posted: 1/15/2021 4:27:56 PM EDT
[#2]
Link Posted: 1/15/2021 5:20:37 PM EDT
[#3]
Link Posted: 1/15/2021 10:54:46 PM EDT
[#4]
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Here’s a 16ft wide one, about 7ft tall in the center. This is about 100ft long, built from a kit to fit between two larger greenhouses. My college roommate and I put it together in two weekends about 25 years ago.

You lose upright working space on the sides. You can increase that by buying some chain link fence galvanized pipe and raising your sidewall 3 to 4ft.

I wouldn’t buy anymore pre-bent hoops myself. We bend our own with a hand crank bender and use chain link fence pipe. Pull out your high school geometry book, figure out your length and your bend, figure out of you need a sidewall, bolt it together with carriage bolts.

Let me take you in another super cheap direction.

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This was a shade area with metal poles, 2x4’s and shade cloth. It sucked, but it was a lease and we didn’t want to take the metal poles down. So that’s 2” thin wall PVC pipe. The joint is at very top (middle). I don’t remember the dimensions. I keep it in a notebook in my office. We put a 4 year rated sheet in poly on it in October and take it off in May and store it. Those greenhouses have been in use over 20 years.

So measure your skid loader, width and height, figure out how big you need it and then make sure you can easily order a piece of plastic to fit it. Remember you need 8 to 12” of extra plastic on each side to lock it down.
Link Posted: 1/15/2021 11:43:48 PM EDT
[#5]
Link Posted: 1/15/2021 11:56:03 PM EDT
[#6]
Link Posted: 1/16/2021 12:24:28 AM EDT
[#7]
Link Posted: 1/16/2021 12:43:35 AM EDT
[#8]
I’d probably stay closer to a maximum of 20ft wide and use like 4ft spacing on the hoops.

This one is probably 34+ foot wide, I don’t use it anymore.  We got 14” of snow in 2010, didn’t heat this house and couldn’t brush all the snow off fast enough and it collapsed in the middle of the night.

It’s rare to get that much snow, so we just don’t build them for that kind of load. But it was an easy fix and we had it put back together in a couple of days.

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Link Posted: 1/16/2021 12:52:56 AM EDT
[#9]
For the record, we didn’t built that one. It was already built on a nursery we purchased. You’ll notice it wasn’t the plastic that failed. Use good poly, not the cheap stuff.
Link Posted: 1/16/2021 1:47:27 AM EDT
[#10]
Link Posted: 1/16/2021 3:59:37 AM EDT
[#11]
Good info from Joe mama. If it wasn’t mentioned get uv rated poly for covering. More money but lasts longer.
Link Posted: 1/16/2021 10:55:18 AM EDT
[#12]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Is that diameter pipe sufficient for my mn needs?
View Quote


That 1-3/8 ought to be plenty for what you need unless you plan on hanging a couple hundred hanging baskets in there.

My 16’ house is like 1” or 1-1/4”.

Your hoop spacing is what’s going to improve your snow load.
Link Posted: 1/16/2021 11:05:59 AM EDT
[#13]
https://www.amleo.com/ginegar-suncover-grow-film-4-yr-6-mil-clear-22-width/p/VP-SCOV22/

I don’t know if they sell to the general public, but they even custom cut stuff to size for me. But I was ordering like $8k worth at a time. You might have to stick to stock sizes.

Store the leftover piece in a dark barn or garage and it will keep for a long time. Or sell it on Craigslist and get some of your money back.
Link Posted: 1/16/2021 11:20:15 AM EDT
[#14]
In MN get a cathedral style hoop kit from Farmers Friend or Bootstrap Farmer. Have used both companies and pleased with both.
Cathedral will shed snow better, double wall plastic with inflation will work even better. Key will be positioning to block wind using natural wind blocks.
Link Posted: 1/16/2021 11:54:55 AM EDT
[#15]
Link Posted: 1/16/2021 4:32:46 PM EDT
[#16]
get on the high tunnels for beginners group on fb, lors of good info.you may be able to get a grant to pay for it from the usda
Link Posted: 1/16/2021 5:31:44 PM EDT
[#17]
morgan county seeds has a pretty good line of high tunnels and greenhouses.
Link Posted: 1/16/2021 8:54:47 PM EDT
[#18]
Link Posted: 1/16/2021 8:57:34 PM EDT
[#19]
Link Posted: 1/16/2021 9:02:16 PM EDT
[#20]
Link Posted: 1/16/2021 9:03:34 PM EDT
[#21]
Link Posted: 1/16/2021 9:56:19 PM EDT
[#22]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Do you use squirrel cage fans?  And if so, how much you paying for one these days?  Been too many years since I purchased.

That air layer makes a huge difference in my opinion.  Not sure whether the potential air barrier is important for OP.


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Some we do, some we don’t. eBay or Grainger, usually $80 -$120 ea
Link Posted: 1/16/2021 9:57:39 PM EDT
[#23]
Discussion ForumsJump to Quoted PostQuote History
Quoted:



Holy CRAP!  14" of snow where YOU are?

That's a little scary.  

Did you save that crop?

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It was all sempervivum in that greenhouse. It didn’t matter how cold it got, we just needed to keep the rain and ice off them.
Link Posted: 1/16/2021 10:28:01 PM EDT
[#24]
Link Posted: 1/17/2021 11:06:58 AM EDT
[#25]
Link Posted: 1/17/2021 12:56:13 PM EDT
[#26]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
For putting my bobcat in there, with permanent raised beds, what general purposes would it serve?

It can be done, but I would need a 5 foot wide center walkway.
View Quote

I will say, having worked with a ton of high tunnel producers, raised beds suck.
to have to do everything manually, they limit your irrigation and crop rotation options, they are expensive to install, hard to change out soil it, hard to till, limit your growing hight for trellised things.and they will be harder to keep warm in cold weather.
Link Posted: 1/17/2021 1:04:31 PM EDT
[#27]
I am in N Idaho and completed a 14'x20' greenhouse earlier in the fall to house my chickens and ducks over the winter. I bought the 1 3/8” top rails mentioned above and I used bending jigs and hardware that I picked up from Johnny Seeds. I had a couple videos up up the build process, but I closed my YouTube Channel and the videos came down.

I will edit this and upload a few pics of the build that are on my phone. I just went through a huge windstorm up here and the greenhouse did not budge. It is not wide enough for the snow load to be a problem as it sheds it regularly.

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The plastic I used was a 6 mil 20x100’ reinforced plastic that I picked up locally for about $200.

The total build cost was well under a $1000 but I did pick up the jigs and hardware several year before I actually built it.
Link Posted: 1/17/2021 2:08:22 PM EDT
[#28]
Regarding using galvanized pipe:

I ran a wholesale fencing supply for 20 years.  The fence industry uses pipe OD for their reference.

All of the normal fencing pipe is structural pipe, not water pipe.  Sometimes water pipe is used in fencing, such as schedule 40 posts for wood fencing or on heavy industrial chain link.
What you want is structural pipe because schedule 40 pipe while thicker, does not have the ability to flex and return to straight.  It holds straight for a long time and then bends permanently.

1-3/8" OD galvanized fence pipe is available in these wall thickness : .035, .047, .055, .065, .072-.080, .090, and thicker up to a schedule 40 thickness that I forget.
The normal length is 10"6", 21' and sometimes 24'.  One of the ends will normally be swedged (not swaged) so that they can be connected together by sliding one into the other a few inches.

I had a guy who build greenhouses all over the country.  I sold him a ton of 1-3/8" OD galvanized tube x .065 wall thickness x 21' long and 24' long.
If I was going to build a greenhouse, that is what I would start with.

YMMV
Link Posted: 1/17/2021 5:59:16 PM EDT
[#29]
Link Posted: 1/18/2021 3:54:44 PM EDT
[#30]
Link Posted: 1/18/2021 4:40:20 PM EDT
[#31]
Link Posted: 1/18/2021 11:53:11 PM EDT
[#32]
Anyone build a greenhouse with windows and a wood frame?I have a bunch of windows my buddy replaced and I’m going to change a few on my house. Would it work?
Link Posted: 1/19/2021 10:53:34 AM EDT
[#33]
I have seen folks building raised beds to the size of an old window used on top of them.  
It seems to work well if the side of the complete window is hinged so it can be moved out of the way as needed.  
Another nice thing is that you can raise and lower the window for airflow.
Link Posted: 1/19/2021 11:30:34 AM EDT
[#34]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Anyone build a greenhouse with windows and a wood frame?I have a bunch of windows my buddy replaced and I’m going to change a few on my house. Would it work?
View Quote


People do it all the time. Just figure out how many you need. I'd probably cover the roof and the bottom 3 ft with polycarbonate. Use the windows around all 4 sides.
Link Posted: 1/19/2021 11:31:10 AM EDT
[#35]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
I am in N Idaho and completed a 14'x20' greenhouse earlier in the fall to house my chickens and ducks over the winter. I bought the 1 3/8” top rails mentioned above and I used bending jigs and hardware that I picked up from Johnny Seeds. I had a couple videos up up the build process, but I closed my YouTube Channel and the videos came down.

I will edit this and upload a few pics of the build that are on my phone. I just went through a huge windstorm up here and the greenhouse did not budge. It is not wide enough for the snow load to be a problem as it sheds it regularly.

https://www.ar15.com/media/mediaFiles/384426/9803E456-1E5C-405C-9560-EE9F86E9FB42_jpe-1783450.JPG

https://www.ar15.com/media/mediaFiles/384426/004B2E44-3D5C-41DB-BF30-9D69D67CF276_jpe-1783454.JPGhttps://www.ar15.com/media/mediaFiles/384426/961EF939-FBAE-434A-8B2C-FD0F64FDCE0E_jpe-1783456.JPG

The plastic I used was a 6 mil 20x100’ reinforced plastic that I picked up locally for about $200.

The total build cost was well under a $1000 but I did pick up the jigs and hardware several year before I actually built it.
View Quote



How do you like the chickshaw? Thinking about building one.
Link Posted: 1/19/2021 11:53:32 AM EDT
[#36]
I have a "trial" garden that's around 40' wide and about 75' long, can't say that I've done everything I want to do in it, still needs a ton of work to look like anything, but we put in a small vegetable plot in one corner, tulips across the front in the Spring, a few Texas hill country plants like Blackfoot daisy and a few shade plants in another corner, like inland sea oats, ajuga, etc.

It's fenced and we can take the fence down to get a tractor in there, but we don't unless we have to (3 years ago we had to remove a dead tree.) I bought a $200 walk behind tiller off Craiglist and that's pretty much the only thing that goes in there. I think anytime you impose restrictions on your plot, either by structure or fence or irrigation, there's just a certain amount of hand work that you're going to have to accept.

In the grand scheme of things, a 24' x 60' high tunnel isn't completely unmanageable by hand. Whatever implements you can manage with a skid steer would be helpful, but I think there's always going to be a certain amount of handwork that you're going to need to accept. My parents spent many summer days out in a field in Texas with gardening hoes chopping weeds out of cotton fields in the 1950's and 60's. They survived. My mother will be 73 this year, she still get out there on her hands and knees working on her assorted gardens and flower beds. My grandmothers did the same well into their 80's.

I'm not saying that you're lazy. And I'm pretty sure you can weld up some creative implements for your skid steer to help you out, but working inside a small confined space- it is what it is. Like fighting in a basement.
Link Posted: 1/19/2021 12:04:22 PM EDT
[#37]
Link Posted: 1/19/2021 12:14:43 PM EDT
[#38]
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My grandfather had a couple of these that he welded together out of old junk and a bicycle tire. I wish I had one of his originals. His had a single cultivator sweep on the bottom.

8th grade education, he'd see something in a catalog and go build it.
Link Posted: 1/19/2021 12:18:49 PM EDT
[#39]
Link Posted: 1/19/2021 5:45:06 PM EDT
[#40]
Most people use tractor to move compost in and out, but till with a 24 or 36 inch small tiller. So you don't need a big center path when growing just a big door for once a year access.

Maine nrcs says 1.66 14 gauge less then 26 feet wide 1.9 14gauge 26-30ft.
Link Posted: 1/19/2021 11:47:41 PM EDT
[#41]
Link Posted: 1/19/2021 11:52:09 PM EDT
[#42]
Link Posted: 1/19/2021 11:53:10 PM EDT
[#43]
Discussion ForumsJump to Quoted PostQuote History
Quoted:



How do you like the chickshaw? Thinking about building one.
View Quote



This is my third one! I love em!
Link Posted: 1/20/2021 12:15:35 AM EDT
[#44]
Link Posted: 1/20/2021 12:17:42 AM EDT
[#45]
Link Posted: 1/21/2021 3:13:24 PM EDT
[#46]
Discussion ForumsJump to Quoted PostQuote History
Quoted:



For me, the further north you go, the more useful it is to have two layers and the squirrel cage fan.

HOWEVER....I could be double damn dead wrong about that, and you should research it.

The small bit of electricity it takes to run that fan is small beans compared to the insulative value you get for the time you are growing.

That's my take on it.

@joemama74
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If you're going to heat the house, yes. If you're running it cold, I dunno if I would bother. We figure on a 10 - 15 degree temperature differential on night temps. So at 4am, if it's 25 degrees outside, it's 35 degrees inside. If it's 15 degrees outside, you're not heating and your plants aren't cold hardy, you're in trouble.

If you're sitting at 0 for day after day with cloudy weather, your greenhouse is going to create 0 heat. Frost blankets can help, but you're gonna have to bring something to the table for heat at some point if you need to maintain some kind of minimum temperature for your plant.

Just depends on what your growing.
Link Posted: 1/23/2021 12:21:29 AM EDT
[#47]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


If you're going to heat the house, yes. If you're running it cold, I dunno if I would bother. We figure on a 10 - 15 degree temperature differential on night temps. So at 4am, if it's 25 degrees outside, it's 35 degrees inside. If it's 15 degrees outside, you're not heating and your plants aren't cold hardy, you're in trouble.

If you're sitting at 0 for day after day with cloudy weather, your greenhouse is going to create 0 heat. Frost blankets can help, but you're gonna have to bring something to the table for heat at some point if you need to maintain some kind of minimum temperature for your plant.

Just depends on what your growing.
View Quote

around here where we do go below zero most people use low tunnels inside the high tunnel in winter. still not gonna keep warm stuff alive, but greens etc do ok. slow growth do to photoperiod though
Link Posted: 1/23/2021 1:29:46 AM EDT
[#48]
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