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Greenhouse Build Series – Post and Beam Concrete Foundation



Build a post and beam greenhouse. Pour a concrete foundation for a post and beam cedar and fir greenhouse. Excavate a site in the garden, add perforated drainage pipe, pack crushed gravel and set wood concrete forms in place. In this the first part of the post and beam greenhouse build I will cover step-by-step what I did to make a long lasting reinforced concrete foundation to set my posts and walls on. I build the forms from standard framing lumber and staked them in place. The forms contain rebar that’s hung from tying wire and there’s also wall anchor bolts suspended in place. The corners of the concrete foundation have galvanized post saddles set in place during the concrete pour. This post & beam greenhouse foundation is easy to make and will last for decades and acts as a sturdy structure for the rest of the build. I added crushed stone to make the floor for the greenhouse once the forms were stripped. In further videos in this series I will detail all the post and beam cutting and notching and fitting. Then I will make the cedar rafters for the roof and add the polycarbonate glazing and vents.

I have a 14 page greenhouse plan that’s available at the link below.

GREENHOUSE PLAN: https://manabouttools.com/greenhouse-digital-plan/

HARDWARE LIST and BLOG POST: https://manabouttools.com/greenhouse/

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TOOLS I USE: https://manabouttools.com/tools-i-use/

CONCRETE CALCULATOR: https://www.inchcalculator.com/concrete-calculator/

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DISCLAIMERS:
Some of these links have an affiliate code, if you purchase tools with these links I will receive a small commission at no additional cost to you. Thank you! The tools or equipment seen in this video and have been purchased ourselves.

#greenhouse #concrete #greenhouseplans

14 Comments

  9. Vince I

    Very nice work. I did some solo concrete work this summer with a mixer too. If only my property was flat like yours! One thing that saved a lot of grief was buying one of those cheap Chinese concrete vibrators from eBay. They're kinda cheesy but they do work very well and get rid of bubbles like a champ for not very much money. I think I paid $45 for mine about 3 years ago.

  10. OhMyGulay

    I feel like you should have released the videos weekly as parts and at the end released the video summary of the whole build

  11. Dithrandir

    I love working with concrete but I always forget it takes 5 times as long to build the forms than it does to mix and pour.

  13. ̇George H.

    Thanks for uploading these more detailed videos. I enjoy watching them even if I'm never going to build a greenhouse.

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