• Hometalker
  • Atkinson, NE

How to Build a Greenhouse

5 Materials
2 Weeks

I have desired my own greenhouse to extend our growing season. And I’ve dreamed of just how to build a greenhouse on our homestead for quite awhile. Probably for as long as we’ve been on this homestead journey! This last spring my husband finally listened to all of my hints and started to build my dream greenhouse.
how to build a greenhouse
My loving husband decided to build the greenhouse in the shop and move it over to its new location once he finished.
FYI, if you go this route, it is very heavy and will take a lot of man power to move it. :)
After he measured and cut the pieces, his first step was to build the base and then frame for the wall. Once he built the wall frames, he attached them to the base using those 3″ deck screws.
how to build a greenhouse
He found an old screen door that my mother in law was no longer using and trimmed the door frame to make it fit. Then he added the rafters.
how to build a greenhouse
And because he’s extra sweet, he painted it all white for me. What a guy I have! Next, he started adding the plastic sheeting, secured with screws. This sheeting came in 8′ pieces so he cut them to size.
how to build a greenhouse
To give it a little more stability, he added scrap pieces of wood on the arches in the rafters.
how to build a greenhouse
For the vent, he just measured the space between the rafters and made two of these pieces to fit.
how to build a greenhouse
From the inside, the vents are being supported by this metal sheet and pin so I can easily open and close it to my height preference.
how to build a greenhouse
He secured the greenhouse in the ground with these metal rods that are welded into t’s, one on each side.
how to build a greenhouse
Lastly, he added an 10′ rain cap to the top of the roof to keep the rain out.
The complete instructions and measurements are on the blog link posted.

Suggested materials:

  • (12) 8′ long, 6 mm greenhouse polycarbonate sheets  (Menards and Lowes)
  • (4) 16′ 2×4  (Lumber Yard)
  • (4) 16′ 4×4  (Lumber Yard)
See all materials

Want more details about this and other DIY projects? Check out my blog post!


Have a question about this project?

3 of 8 questions
  • Rachael Basye
    on Sep 8, 2017

    i love this! We want to build something very similar. Do you remember the approximate cost fo the project?

  • Jeanne
    on Oct 14, 2017

    Great idea! Your plastic sheeting is polycarbonate that can be attached with screws? It doesn't rip in the wind? I've wanted a greenhouse for years, and have been eyeing one at a hardware store, but they're expensive. I also have several old wooden windows with the glass still attached. Your project looks like it could be adapted to fit those. Thanks for the inspiration!

  • Awesome! Can I ask what the cost was not including the poly sheets? Thanks very much!

Join the conversation

2 of 52 comments
  • Haj5802069
    on Aug 31, 2017

    Kudos, such an inspiration!

  • Cherry
    on Sep 17, 2017

    Very nice work. Would love to have it. But reminds me of that crazy NANNY movie!

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