How to Build a Greenhouse. A greenhouse is a structure made of plastic, glass or fiberglass meant to cultivate and exhibit plants. It allows the sunlight to penetrate into the enclosed area so that the plants blossom in a conditioned climate. You can see greenhouses of various sizes. Note that a bigger greenhouse is also called hothouse or glasshouse, while a smaller one is known as coldframe. Build a greenhouse depending on the space and budget available. Here is how you too can build one:

Step 1

Determine the exact purpose of building the greenhouse. It can be as a hobby or for growing plants commercially.

Step 2

Decide the type and size of the greenhouse to be built (see link below). You can either have a freestanding or attached structure. A coldframe can be the best option for a small space. The sizes can range between 8-48 feet.

Step 3

Plan the budget. This will also determine the type of material - aluminum, galvanized steel, wood, PVC, glass, fiberglass and polycarbonate - you will be able to use. You will also need other items such as tubular steel hoops, clamps, steel door hinges, handles UV resistant film, batten tape, heavy-duty wire and adhesives.

Step 4

Evaluate the site where you want to build the greenhouse. Make sure it gets adequate sunlight. Choose a location that would provide partial shade so that there is no excessive heat inside. Consider the aspect of proper disposal of water.

Step 5

Prepare a plan. List the measurements of each side of the greenhouse, the window size, the length of water pipes needed. Count the number of frames to be cut for the base, roof and sidewalls. Make the plan meticulously as it will result in a suitable greenhouse.

Step 6

Go online and look for the material available (see link below). Buy the material either online or from local stores.

Step 7

Level the ground well before you start erecting a greenhouse.

Step 8

Begin from the base. Prefer to use plastic frames or wooden slats. Lay it on the ground securely of the size you have chosen. Measure it diagonally if you want a square greenhouse. Fix it by using galvanized nails and its plates. Keep space for water pipes as necessary.

Step 9

Focus on sidewalls. Fix the glass, plastic or fiberglass frames tightly on the three sides first. Use galvanized nails and adhesives and ensure that the walls are strongly connected to the base. Make sure the material gels well.

Step 10

Fix the roof. Cut the frames as per your plan and join with the three side walls. Use nails and adhesives to secure it.

Step 11

Place the entrance frame and window(s) on the fourth side. Put the hinges of the door and window with adjoining frames as per your plan. Use nails and adhesives again. Ensure that the frames on the four sides, door and window(s) are strong enough to withstand pressure.

Step 12

Use the UV-resistant film to cover the greenhouse. Cover the door and window, too. Make use of the batten tape and wire as necessary.

Step 13

Position plant racks. Leave some free space around it for walking.

Step 14

Make electrical fittings on the sides as necessary.

Step 15

Lay pipes for water supply and disposal as needed.