My Giant $160 A-Frame Greenhouse

As of today, phase one of my giant A-frame greenhouse is complete. It stands about 12 feet high, 24 feet wide, and 48 feet long. I have a single layer of 6mm plastic on the north and south sides with the ends currently open. I plan to enclose them before the frosts this fall (that’s phase two), but I’ll leave them open throughout the summer.

A-Frame Greenhouse

The entire structure is built on top of fence posts. I did this because my lumber wasn’t treated – this way the wood won’t sit on the ground a rot right away. The lumber for the structure is just rough 2×6 boards that I got for a real deal. It’s in pretty rough shape (warped and cracked), but it’ll do for this purpose. It’s cross-braced by some wire my father-in-law had, and the the plastic cost a total of $80. The raised beds are made with 2×10. All said and done – it cost me about $160, plus a good chunk of my time. I’m glad I’m done this far – it was a lot of work. Now I get to do the fun part – planting, growing, and enjoying!

A-Frame Greenhouse

Originally I was going to have a water trench down the middle to for heat storage, but with small children around I opted for a compost trench that should let off quite a bit of heat anyway. Well, see how it goes.

I’m not sure how well the plastic will stand up, but I’m hoping it’ll last the year anyway. If it doesn’t, I’ll have to pay for the more expensive (but much better) 11 mils woven poly.

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11 Responses to My Giant $160 A-Frame Greenhouse

  1. Amy says:

    Great job! I can’t wait to see your garden growing.

  2. Jennifer says:

    Now I know where you’ve been….working outside…lol! Good JOB!So, you are going to use this for the summer months, correct?….what are you going to plant in the raised beds?

  3. Dave says:

    The primary purpose of this greenhouse is to keep the hail from destroying all my tender crops. I live right in the center of Alberta’s “hail alley” and we’ve had bad hail every year I’ve lived here. So, this is one one I can try to keep them a little safer.
    If it works, phase two is to add ends and be able to get things going earlier in spring and keep them later in the fall. I won’t try to heat it though – just passive heating.
    I’ve got tomatoes, cucumbers, watermelons, a couple Dill’s Giant Pumpkins, and some peppers ready to go out there. I’ll likely experiment with a whole lot of other misc things too.

  4. ANGEL says:

    HI, AWESOME GREENHOUSES. I AM NEW TO GREENHOUSES, AND ABOUT AS BROKE AS EVERYONE ELSE, BUT I WANT TO FEED MY FAMILY FRUIT AND VEG THAT IS NOT SATURATED IN CHEMICALS. WE LIVE AROUND COCOA BEACH FLORIDA ON THE MAINLAND WITH A HORRIBLE FERAL CAT PROBLEM, HENSE THE NEED FOR AN ENCLOSED STRUCTURE. WHAT WOULD YOU SUGGEST THAT WOULD BE STURDY ENOUGH TO HANDLE THE NOT HURRICANE RELATED WIND AND STORMS? THANKS ANGEL

  5. steve black says:

    built this and is awesome. now gophers r diging under greenhouse and ate everything. ideas??????

    • Dave says:

      Steve: I don’t a much trouble with gophers (although I’ve had a deer make its bed in my beds when I leave the greenhouse door open), so I’m not sure what to recommend for you other than traps. Perhaps someone else has an idea?

  6. bearcreekresearch says:

    “plant” chicken wire about eighteen inches below ground

    also gopher hate the ultrasonic “kick” from mini windmills into the earth.

    you may consider photovoltaic powered ultrosound devices and augment them.

    don hall / bearcreekresearch

  7. margie says:

    We call them Woodchucks here in upstate New York, and after you shoot the thing, bow and arrow is fine, dress them out being especially careful to remove the glands on the rear legs. Soak them an hour or two in salt water to draw out any blood. They are vegetarian, so much like rabbit, although they can be greasy late in the summer when putting on fat to get through the winter…We prefer to can them in marinate when we have several. Flavors and tenderizes the meat. Happy hunting.

  8. Tripp says:

    Could you please post how to build it?

    • Dave says:

      Tripp: I’ll have to consider that for one of my future posts! But I’d have to try to explain everything from memory, as I have since moved from that yard.

  9. Tripp says:

    Okay thank you though

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