So you think you might build your own greenhouse? Wow! That is an ambitious but surely a worthwhile goal. If you have the skills necessary to do most of the work yourself, this would be a great way to create a cost-effective greenhouse.
Now, a comprehensive guide to greenhouse construction is far beyond the scope of our little greenhouse page. For complete building instructions, get to the library and find a couple of good books on greenhouse construction. Or do a web search for "greenhouse plans".
At the end of this page is a link to some more detailed information you may find helpful.
We believe a greenhouse should be the ultimate goal for any serious hydroponics or traditional soil gardener. Our guide here will hopefully provide some good food for thought as you plan your project...
How big a greenhouse do you need? If all you're going to be doing is starting seedlings to get an early jump on spring, you may just require a small cold frame or tiny temporary-type greenhouse covered with plastic.
A traditional free-standing greenhouse should be a minimum of 8x8 feet. If you are planning on benches and aisles, minimum should be 8x12 or 10x10. If you truly think you will use a greenhouse fully and spend the time to maintain it, go bigger.
One of the most common complaints by greenhouse owners is that they didn't build it big enough!
On the other hand, be realistic about the time commitment involved in taking care of a greenhouse. If you really don't have the time, stick with a small, easily managed greenhouse.
As you ponder what size to build, take into account the added costs of a building permit, possibly higher property taxes, heating, electricity, and water.
The smaller the greenhouse, the less these added expenses will be. Consider all these factors when deciding on the size of your greenhouse.
Building your own greenhouse? Would you like a freestanding greenhouse, or one attached to your existing home?
The Pros & Cons of Attached Greenhouses:
Although greenhouses are as individual and unique as the builders who created them, there are certain similarities of roof-line and structure that define their style.
If you want to build your own greenhouse, you'll want to give careful consideration to which style would best complement your property.
Below we describe the most popular greenhouse styles:
An A-frame greenhouse is simple in design and recognizable with it's tall, steeply pitched roof. These greenhouses provide a sturdy framework for glass panes. They are often used in very cold climates, as lots of snow does not accumulate on the roof.
HOOP STYLE (QUONSET)
This is the easiest and fastest construction method if you want to build your own greenhouse. It is also low cost and simple in design. The framework is composed of plastic PVC or electrical conduit pipes which are bent into arches to form the framework.
They are usually covered with flexible plastic sheeting. One disadvantage is hoop greenhouses usually are not very tall and don't have much headroom or storage space. These hoop style greenhouses are an exception.
This style is similar to the hoop house and is also inexpensive. Instead of a full curve, the hoop rises to a peak. This makes it better suited for snowy climates, and allows for more headroom.
Barn style greenhouses also come to a peak. If you can visualize a traditional barn structure, this is what the greenhouse looks like. It may also have a knee wall. Barn greenhouses provide lots of headroom and plenty of surface for vents.
Greenhouses which are attached to a dwelling are essentially one half of a freestanding greenhouse. Hence you end up with one single sloping surface for glazing.
BUILD YOUR OWN GREENHOUSE
You want to build your own greenhouse close to the garden, if you have a traditional soil-based plot. Also think about how far you will have to walk to get to the greenhouse from your home. Most folks place their greenhouse close by for easy accessibility.
Interested in more specifics on greenhouse construction? Continue on to our DIY Greenhouse page.
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