Cedar 4x4 Greenhouse

3 Materials
1 Week

This is a cedar greenhouse I built last year in my yard .It is 10 ft wide by 11 1/2 ft long . I had some extra lumber laying around so this is what I decided to make :-)
I started by using 4 pressure treated 4x4s for the bottom plates of the frame .
I did half lap joints on the bottom of the frame .
The height of the walls are 6 ft .Once they were in place I plumbed them up and made sure everything is square and level .
next step was adding the main roof frame .
I added all the 4x4s afterwards once I knew how wide the plastic sheets were so it would be less cutting . I added cedar trim pieces so the plastic could be attached . I used 1 x 6 cedar for the bottom section .
I filled in the rest of the roof rafters then added the rest of the plastic .I also added 2 roof vents at the top of the roof .
I also added removable shelving to the inside of the green house .
Once the plastic was done I added the double door to the front .
We were still getting snow in early spring :-(
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Have a question about this project?

3 of 27 questions
  • Lisa West
    on Aug 30, 2019

    Its looks great. Question though, did you have to have a permit for this structure or no? Some times and state require a permit for certain size sheds. So I was wondering what your town veiws the green house as?

  • Kristi
    on Aug 30, 2019

    How much did it cost when finalized? That corrugated plastic is kinda pricey.

    • John
      on Aug 30, 2019

      I had a lot of the cedar , All together it cost me $ 2,000.00 but 4 months after I built it someone bought it from me for $ 4.000.00 and moved it a half hour away .I am building a new one with 6x6 cedar . Different style .It is also being built with same plastic , total will be about $ 1,000.00

  • Mike
    on Feb 5, 2020

    Do you have materials list and blueprints for this greenhouse

Join the conversation

2 of 85 comments
  • Maureen
    on Sep 2, 2019

    Beautiful greenhouse!! You did an amazing job!!

  • Diana Sue
    on Jul 17, 2020

    This is great! I am building one myself - picking up the lumber tomorrow. Now that I've seen your roof vents - I will give it a try doing that too. Mine will be 8x9 and made partially with actual windows. Thanks for the inspiration!

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