How To Build A Small Greenhouse, Easy To Build Diy Greenhouse

If you have a piece of land or a little garden, no matter how small it may be, it would be nice to realize a corner in which you can build a small greenhouse where you may have the possibility to preserve and grow your preferred plants during the cold season.

Moreover, given the prices of vegetables, as well as being an enjoyable and relaxing pastime the taking care of your plants could even be beneficial as a hobby.

To build a small greenhouse it’s not so difficult and, on the other hand, you can get a lot of satisfaction.

Let’s see how we can build our own greenhouse without spending a lot of money, operating in the field of the magic DIY, maybe even trying to reuse the materials that we have in the garage or basement (this certainly make both, your wife happy and your wallet less empty).


(example for a 10×40 ft. greenhouse)

  • A plastic black sheet for soil of same size of the land’s surface (10×40 feet).
  • A transparent plastic sheet about 37 ft. width and 50 ft. lenght (basically the width should be approximately 3 times the land’s size and the length is same of the land plus something for the front and the rear of the tunnel
  • hydraulic plastic hoses with a diameter of 3/8 of an inch and elbow-cross pvc fittings
  • Aluminum stakes camping
  • Nylon rope

All the above materials are easily and readily available at any garden shop or DIY store. It should also be said that some of these materials may come from reused waste of carpentry, adding a pretty good additional savings and -let us say- a benefit for the environment.

To get an idea a little bit more precise we say that the length of the tubes must be a total of about ten feet less the width of the transparent cloth, keeping in mind that in the sense of the length, for every three feet it must be put a transverse support tube.


It is necessary to connect with one another plastic pipes by using a plastic connecting pipe slightly larger or a piece of rubber hose 10 inches long which must be fixed in between of two plastic pipes.

So far, the plastic plumbing pipes are very suitable for this purpose because they are flexible enough to be forced as to arching the vault of our tunnel and at the same time they are very robust and offer a good resistance to the wind.

We will have to prepare eleven tubes each 51 feet long, achieved by linking (as mentioned in the previous paragraph ) pipes through rubber tubes.

We will plant into the ground one end of the first tube for approx. 7 inches and then arch the pipe so that the distance between the two ends of the arc is about 30 feet.

Then we’ll do the same thing with the second tube and we set it up approximately at 3 feet away from the first and go on.

So each arch will be spaced from the other about 3 feet to form a tunnel 40 feet long and 10 feet width. (Let us say that, obviously, the measures adopted are just indicative and therefore, keeping more or less the arches proportions, it’s possible freely modify the size of the greenhouse, according to our available space).

On top it would be appropriate to connect the top arches by using pvc cross fittings that will steady on the longitudinal lenght the entire framework of pvc.

Then we have to lay the breathable fabric to cover the entire rectangle of 40 by 10 feet of the surface of the ground inside the tunnel securing it with 4 pegs.

To reinforce the seal of each end of the tubes, close to the point where the tubes are planted into the soil we may fasten to the ground each pipe with two pickets contrasted with the tie rods linked to the same pipe so that an adequate seal is exercised to make a good wind resistance.

Finally we put the clear plastic over the arches, starting with one of the two ends of the tunnel, putting attention to leave a section of plastic (about 3 feet) to close the opening like a tent with the overlapped edges.

Once you have completed these steps, in order to give stability to the greenhouse it shall be appropriate to tie the tie rods at a height of approx. 4 feet from the ground on the tubes alternately, one and one not, staring at the tie rods on the ground with the stakes camping by passing the rod through a piece of wood drilled in order to regulate the draft as they usually do for camping tents.

It should be noted that the point where we will have drilled the plastic sheet in order to fix the tie rods will be the weak point where the fabric is more prone to tear, so it may be useful to reinforce it with small pieces of electrician tape.

To further refine and give solidity to the entire structure of our greenhouse it would be also advisable, if possible, strengthen the perimeter with bricks, placed as a little curb, or even with river’s round stones which will give also an aesthetically pleasant aspect.


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