Building a Cheap Greenhouse


| 5/12/2014 10:13:00 AM


Tags: greenhouse, urban homesteading, chickens, Homegrown.org, California,

HOMEGROWN: Greenhouse exterior

I can’t believe I haven’t written about our greenhouse. We’ve been using it for at least a year and a half now, and I’ve been oddly silent about it. I guess it’s probably because it’s not 100 percent complete. We have one small area that still needs a permanent covering, the windows need new glazing, and it is in desperate need of new paint. But it’s still functional and gets a lot of use. And it only cost us about $300.

HOMEGROWN: Building a greenhouse frame

That might sound like a lot of money until you consider that this greenhouse is 8 by 12 feet and uses glass glazing. Buying a glass greenhouse that size will generally run you around $5,000.

Why Choose a Glass Greenhouse?

Why a glass greenhouse? Why not just make a hoop house to save money? Hoop houses are great, don’t get me wrong, but they just don’t stand the test of time. While they are cheaper to make upfront, there are some concerns you have to take into consideration. The material usually used for hoop houses is plastic sheeting, which doesn’t last more than a few years, even if it is UV-resistant greenhouse plastic film. I’d prefer not to have to add more plastic to the landfill or spend the money replacing it. Also, you have to give special consideration to the hoop structure. PVC pipe will degrade the plastic through chemical reaction faster than it normally would degrade (and most isn’t UV resistant), so you either have to wrap the pipe or use another material, like galvanized pipe, which increases the cost. Plus, we have a very windy site for most of the year, and plastic sheeting just wouldn’t hold up.

Polycarbonate greenhouses also degrade from UV but last substantially longer than poly film. Polycarbonate is a plastic, and even though it may hold up for 10 to 20 years when properly treated with UV stabilizers, it will discolor and become more opaque after time. It also becomes brittle. Double-walled polycarbonate adds the benefit of being more insulating than both glass and film. It can be quite pricey, though. Not as expensive as buying glass specifically for a greenhouse, but if you can do glass, which is superior to both film and polycarbonate, for less than either, why wouldn’t you?


mikemills82
3/13/2016 12:32:19 AM

I used the plans on WWW.EASYGREENHOUSE.INFO and built my own greenhouse VERY cheap and easily! It was the best decision I've ever made. To my family and I, it just made economic sense to build a DIY greenhouse. We spent a fraction of the cost of buying an expensive pre-built one that just have to be assembled anyway...why pay inflated prices for material? The guide on that website is so very easy to follow and it doesn't matter if you're a total beginner like us. We were on a very small budget and found so many wonderful plans for our greenhouse...it was hard to pick just one, but the one we chose is terrific! We actually built the one that is featured on the website's homepage. I love growing fruits and vegetables for my family all year round! There's no such thing as out of season for us anymore! I finally have the greenhouse of my dreams and it was VERY affordable!


jay
1/4/2016 12:16:27 PM

Great Job




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