How to Build a Greenhouse on your Own

Introduction: Hello greenhouse farmers today we are here with a wonderful information on how to build a greenhouse on your own. The purpose of having a greenhouse is to shield several crops from excess cold or heat and unwanted pests. A greenhouse makes it possible to produce definite types of crops year-round, and fruits, vegetables, and flowers are what a greenhouse most normally grows. What are we waiting for? Let’s get into the details of “How to Build a Greenhouse”.

A step by step guide to build a greenhouse

All greenhouse buffer plants from freezing temperatures and contain clear walls and ceilings, allowing plants ideal growing conditions with maximum sunlight. Some greenhouses have built-in heating systems to protect plants during the winter, while others rely on the buildings themselves to maintain temperatures inside the greenhouse above freezing.  Greenhouse structure can make an adequate growing temperature in summer and winter alike. They often are used for growing plants and trees that need strictly regulated climatic conditions. While these structures differ in terms of size and purpose, commercial greenhouses can be significantly larger and boast high-tech equipment designed to boost lighting, cooling, heating, and different types of screening installations.

A greenhouse allows you to control the growing environment year-round. So, if you live in an area with four seasons or extreme winters or summers, plants and crops won’t suffer. Just maintain the climate in the greenhouse, and enjoy your bounty of herbs and veggies throughout the year. A greenhouse produces a microclimate ideal for plant growth. It can be used to start plants or house them throughout their plant life.

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A Guide for Greenhouse Building.
A Guide for Greenhouse Building.

A greenhouse in your backyard or one on your farm would add a new dimension to lifestyle, not to mention your health. The greenhouse structure is not an oppressive or stifling heated room; rather it is your garden paradise that allows you to grow plants even when the external environment is inhospitable to plant cultivation. It gives you an edge when you prepare seedlings and plantlets that can be readily transplanted as soon as spring arrives. Controlled microclimate means you can control the humidity, ventilation, and temperature, thus maintaining a conducive environment required by your crops. Plants grow well because they produce under protected and controlled conditions.

Greenhouse Kit or Plans

Home greenhouse structure range in size from small closets that can grow a few potted plants to 50 square foot spaces and larger. The easiest method to build a greenhouse is to buy a greenhouse kit, which should contain most of what you need to build a greenhouse, although you can have to run out to local home center for a few extra ingredients if you’ve got any special criteria or extra features you want or need.

Soil requirement to build a Greenhouse

The soil is the major popular medium of plant growth. The greatest selection of soil in the greenhouse is the sandy loam soil enriched with decomposed farmyard manure, compost or biofertilizer to aid its productivity.

The soil in the greenhouse structure needs to be treated during soil sterilization or soil solarization to prevent pathogens and pests within the soil.

Temperature for growing crops in Greenhouse

The rate of reactions is always favored by high temperatures; however, the temperature through the night hours can drop to below 0°C and heats obtained during the day are not conserved. To maintain an adequate temperature in a greenhouse, use the below practices.

  • Keep a pot or container filled with water inside the greenhouse
  • Place black-colored stones in the greenhouse structure

Choose a location for Greenhouse

The next step is vital to the success of your greenhouse farming, and that is where it will be located. You want consistent year-round sunlight for a greenhouse, so south-facing location is ideal. Any nearby buildings or structures must remain north of the greenhouse, as to not cast a shadow on it.

Plants will respond better to morning sun as opposed to afternoon sun and make sure to the sun’s winter angle. Nearby buildings and trees that are no problem in the summer can block the sun in the winter.

Your greenhouse location should have good drainage. A greenhouse structure without good drainage could easily flood during a storm. The best method to keep your greenhouse from flooding is to raise it a bit and allow the ground around it to slightly slope down.

The greenhouse must be located where it gets maximum sunlight. The first selection of location is the south or southeast side of a building or shade trees. Sunlight all day is best, but morning sunlight on the east side is sufficient for several plants. An eastside place captures the most November to February sunlight. The next best sites are southwest and west of main structures, where plants receive sunlight later in the day. North of main structures is the least desirable location and is good only for plants that require little light. Morning sunlight is most desirable because it allows the plant’s food production procedure to begin early; thus, growth is maximized.

Choose a location for Greenhouse that has access to electricity. Most greenhouses need some heat and ventilation to keep the temperature optimal. If you build a lean-to, you can be able to extend power from the house. A separate building can require hiring an electrician.

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Greenhouse structural framing materials

Materials for Greenhouse.
Materials for Greenhouse.
  • Structural framing materials have low maintenance non-heat conducting timber; strong and durable galvanized steel; low-maintenance and sturdy aluminum alloys. Though plastic pipe frames are usable, they are not strong to withstand snow load or wind sheering forces. What you select as the framing material would be determined by the material you wish to use as glazing, your budget and the permanence of the structure you desire.
  • Aluminium is a popular material for the greenhouse framework as it is relatively lightweight, rustproof, affordable and easy to assemble. The downside is that it is not a good insulating material and in cold weather, heat loss from the metal frame could inflate your heating bill.
  • Wood is a good insulating material thus it will not allow heat loss in cold weather. Reinforced wood has superior strength and excellent load-bearing capacity. Being a natural material, it has the potential to develop mildew or disease and offer a haven to some tiny pests. So, when you choose wood to build the framework of the greenhouse, be sure that you pick a high-quality hardy wood such as redwood, cypress or cedar.
  • Copper naphthenate is a common use preservative used for pressure treating utility poles and timber. It is known to be effective in preventing mold, mildew and dry rot. It works well against wood-damaging fungi and insect pests. Pentachlorophenol is restricted use of wood preservative and toxic to plants and humans. It is not obtainable to the general public and poles or timber treated with it are not suitable for use in a greenhouse.
  • The PVC pipe can be used as support for small greenhouses that are to be covered with polyethylene, but PVC requires additional support to withstand strong winds. Being flexible, PVC can be used mostly well in hoop houses.

Look for power in a greenhouse structure

For larger greenhouses, you’ll want to run household 120V to power your ventilation fans. Some fans can even require 240V. Lighting is extremely helpful, and you’ll need power for those.

Good drainage

Good drainage is another requirement for the Greenhouse site. When required, build the greenhouse above the surrounding ground so rainwater and irrigation water will drain away. Other site considerations contain the light requirements of the plants to be grown; locations of sources of heat, water, and electricity; and shelter from the winter wind. Access to the greenhouse must be convenient for both people and utilities. A workplace for potting plants and a storage area for supplies must be nearby.


Greenhouse coverings contain long-life glass, fiberglass, rigid double-wall plastics, and film plastics with 1- to 3-year life spans.

Glass – Glass is the traditional covering for Greenhouse. It has a pleasing appearance, it is inexpensive to maintain, and has a high degree of permanency. An aluminum frame with a glass covering gives a maintenance-free, weather-tight structure that minimizes heat costs and retains humidity.

Fiberglass – Fiberglass materials are lightweight, strong, and practically hails proof. A good grade of fiberglass must be used because poor grades discolor and reduce light penetration. Use clear, transparent, or translucent grades for greenhouse construction.

Film plastic – Film-plastic coverings are obtainable in several grades of quality and several different materials.

Normally, these are replaced more frequently than other covers. Structural costs are low because the frame can be the lighter and plastic film is inexpensive. Light transmission of this film-plastic covering material is comparable to glass. The films are made of polyethylene (PE), polyvinyl chloride (PVC), copolymers, and other materials like Double-wall plastic. Rigid double-layer plastic sheets of acrylic or polycarbonate are obtainable to give long-life, heat-saving covers. These covers contain two layers of rigid plastic separated by webs. The double-layer material retains more heat, thus energy savings of 30 percent are common.

Siding or glazing materials for your Greenhouse

Siding for your greenhouse must be your major consideration since it will affect the cost and efficiency for years to come. A lot of progress has been made in designing well insulated, more heat-efficient greenhouse siding and after all, regulating heat is what greenhouses are all about.

Another consideration is light diffusion and you want as much sunlight as possible to come into your greenhouse, but you don’t want it directed straight at seedlings, like a magnifying glass. Choices of greenhouse siding materials will be glass or one of the plastics like fiberglass, polycarbonate, or polyethylene film.

Ventilation for plant cultivation in greenhouse

Ventilation is the main part of plant cultivation inside the greenhouse. It is simply the practice of replenishing and replacing air inside the greenhouse structure with the air outside. Ventilation for the greenhouse has multiple purposes. It is an important method of controlling temperature, humidity and maintaining levels of carbon dioxide in the greenhouse environment. Ventilation requirements differ with season and weather. You could opt for a natural ventilation structure where vents are located on the roof along the ridgeline. Side vents allow cross-flow by allowing lighter warm air to escape through the roof vents and pull in fresh air from outside through the side vents.

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Greenhouse Ventilation.
Greenhouse Ventilation.

Heating requirements of a greenhouse

The heating requirements depend on the desired temperature for the plants grown, the location and construction of the greenhouse. As much as 25 percent of the daily heat requirement could come from the sun, but a lightly insulated greenhouse structure will require a great deal of heat on a cold winter night. The heating system should be adequate to maintain the desired day or night temperature.

Watering systems for greenhouse

Watering systems available are again of several types depending on the requirement. You can always hand water crops provided you are available for watering. However, automatic watering systems are a good investment if frequent watering is required over short periods. Watering systems are used to deliver fertilizers or pesticides as required. Timers and mechanical evaporation sensors can monitor and control by timely watering. Misting, spraying, drip irrigation system or simple watering kits are all options you can explore. Drip irrigation systems are excellent for delivering the right amount of water directly to plant roots to minimize water wastage.

Advantages of Greenhouses

  • The greatest advantage of the greenhouse is the ability to grow plants year-round. Not only does this extend the growing season, but it also gives you the chance to grow exotic flowers and tropical fruits that don’t survive naturally in the area.
  • By planting your plants inside a greenhouse structure, you give them protection against problems such as rough weather and serious infestation of seasonal pests like tent caterpillars, locust swarms, spider mites, and many more. You can make sure that plants are healthy and happy all year round.
  • The main purpose of a greenhouse is securing a reasonable amount of heat and water vapors so that warmth and humidity are maintained within the structure.
  • Keeping up a garden in bad weather can be hard. With a greenhouse structure, you don’t have to worry about this since everything is covered. Even if it’s pouring rain outside, you can garden and maintain dry.
  • You can grow a wide variety of plants when using a greenhouse structure. It allows individuals to enjoy exotic plants that are not found in the local area.
  • When using a greenhouse structure, it’s possible to conserve energy sources like water, since these energy sources can more easily be controlled as opposed to traditional gardening. Using a greenhouse is not just about the benefits of growing plants, but also about changing lifestyles and live a more environmentally friendly life.
  • Gardening can help to reduce stress levels and using a greenhouse structure makes sure you can enjoy this all year long.

Tips for proper light and heat efficiency in Greenhouse

  • The greenhouse may do most of the work, but there are some additional ways you can increase the greenhouse’s efficiency. One method to give your plants extra installation is by using black pots. The black pots will hold heat, keeping the roots of plants warm, because black color attracts light. If you live in a hot climate, you must be careful using black pots because too much sun can cause your plants to overheat.
  • When you make your greenhouse structure, avoid using dark colors for anything other than the pots. Dark frames and mirrored surfaces, such as aluminum, can absorb light your plant needs.
  • Benches and shelves in Greenhouse should be painted in light colors, preferably white because they will diffuse light. For this same reason, you should not use light colors for pots. That’s all folks about how to build a greenhouse for profits.

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