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You can see how easy it was tucking the ends of the plastic.  Once the plastic was somewhat gathered and temporarily stapled down, I nailed 1x2 treated strips over the plastic.  Once nailed, I trimmed the excess plastic for a very tidy look.

Side view. The lower hinged panels can be flipped up for ventilation.

I ran a 2x4 beam at the top center of the greenhouse.  
I can't imagine that the snow, even here in Wisconsin, will be an issue with the roof.

Moving in!

I'm getting ready to start my electrical install...laying out my parts and stuff. I will have four protected outlet boxes, two switch boxes, one main switch box, a surge strip, an Alexa screen, overhead Hue lighting, and LED lighting over my potting bench. I also have two fans, each controlled with smart switches, and a smart camera installed. Additionally, I have three smart thermostats and a smart light sensor. The overhead Hue lighting allows me to illuminate the greenhouse at night in different colors, just for fun.  All may be controlled by Alexa. I know...kinda geeky, eh? Smiles...

I have placed the two 134-gallon galvanized stock tanks.  Each tank was $170.00.  I drilled a few holes in the bottom and filled them in the Hügelkultur tradition.  My Hügelkultur layers include these layers:  The lowest layer is made up of 18" oak chunks of wood, standing on end to fill the bottom.  The space between those stumps of wood are filled with smaller branches...tightly filling all available space.  The next layer is about 2 inches of course wood chips.  Next, is a 2-inch layer of composted cow manure.  The top layer is a good mix of potting soil and peat.  

Moving in and giving the bench a tryout...

I also installed a Summer-only water line to the greenhouse.  So very handy!

All the inside electrical is done.

I took an old wooden bench, installed an axel, 12" wheels, and handles.  Now I have a movable bench which I can wheel into the greenhouse when needed.

I dug a 150-ft. trench, 18" deep,  between the second garage and the greenhouse.
I had upgraded the garage sub-panel to a larger 4-circuit Square-D panel.  I re-wired the breakers and installed a 20 amp circuit for the greenhouse.  

 

The electricity works!

 

I used black-painted cinder blocks to create mass for heat retention when temperatures drop at night. I have around 4300 pounds of cement mass, with 60 solid and chambered cinder blocks, along with floor patio blocks. It was quite a task to move these blocks and my back is still aching.

 

When you add the mass of the cement blocks, it totals to over two tons. I also believe there will be some stored heat energy in the cattle tanks.
Each stack consists of two layers of 10 chambered cinder blocks, weighing 26 pounds each. Each stack is then topped with ten solid cinder blocks, weighing 89 pounds each.

 

I have observed that the sun-warmed mass kept the inside temperature 3-10 degrees warmer than the outdoors during colder evenings this early Spring. The Sun effectively heats up the blocks. Every little bit helps, eh?

 

Getting comfortable!

 

Mostly moved in now.  I LOVE my potting bench!
And yes...am anally-retentively-organized, eh?

 

Yeah...it's pretty comfortable! Lori calls it my He-shed!

I added another cattle panel archway between two of my cattle tank raised beds.  The peas are already climbing.  I started some Armenian Cucumbers for the arch.  The other side will have Malabar Spinach.
Our raised beds do so well for us. Bok Choy, Carrots, Peas, Beans, Cukes, Peppers, Radishes, and Onions.

The inside of the greenhouse is starting to look like a jungle. 
The Tomato plants look great.  And Lori's Fig Trees look like they will be loaded with Figs.  I think I need to develop my liking to Figs!

 

We have had so much luck with growing stuff in a bag...trying lots of different things to see what works for us.  We have a few varieties of Squash, Zucchini, Tomatoes, Potatoes, Watermelon, Cucumbers, and Pumpkins.  We'll see!
We are not the sunniest place on the block...so sometimes we need to deal with quantity...cuz the yields are kinda slight.

I also constructed this small 4'x8', 1/2" PVC-framed greenhouse on top of one our raised beds.  It is now loaded with lettuce and herbs.  We CAN grow lettuce.

That's about it for my Greenhouse  Build.

The following are some recent photos of the garden progress...

This is Sophie's act when I tell her it's time to go in.  It's the ole' "Scratch-my-belly-I-promise-I-won't-bite" routine!
And besides...those warm patio blocks feel so good!  Spoiled Kitty!

Griddle is cleaned-up and ready to go. Last night we had our first smash-burgers for the season. Hmmmm.  Tonight it was chicken breast, Asparagus, and a stir fry. 

I have a nice large bamboo cutting board to the side of the griddle. A friend gave me the Italian Granite countertop behind the griddle. And when you need a veggie...or herbs...you can simply reach over and pluck it from the garden beds. NICE!

The Firepit...

And like Lori says...
"Grand Rapids, Michigan is where I want to stay...I get allergic to smelling hay!"
Smiles.

(My Sweetheart is an import from Michigan...now a happy Wisconsinite.  She indulges me so!)

And thanks for taking the time...I enjoyed sharing my project!

And if you are curious...
I have created a Virtual Garden Walk
with LOTS of photos:
My Secret Gardens...HERE...