Polycarbonate greenhouse Rectangular

Rectangular polycarbonate greenhouse 3 m wide and 2 m high. The product is available in several variations in length and thickness of polycarbonate.
The skeleton of the structure is made of corrosion-resistant hot-dip galvanised steel. galvanised profile measuring 40 x 20 mm. The joint system of the arches and side profiles is made in the "crab" system, which provides an even load for the snow deposited on the roof. The skeleton is covered with 6 mm or 10 mm thick cellular polycarbonate. The polycarbonate guarantees adequate light transmission and the thermal insulation necessary for plant growth. A product suitable for the year-round cultivation of vegetables, herbs and plants.
The greenhouse was manufactured in the European Union.

Polycarbonate greenhouse Rectangular - Product specifications

When ordering our product you receive:

• galvanised steel profiles (fronts and cross connectors)
• 6 mm or 10 mm cellular polycarbonate in sheets (6 x 2.1 m), only needing to be fitted to the fronts
• vapour-permeable tape which allows moisture to escape from the interior of the cellular polycarbonate panels, reducing condensation inside the panels. This reduces the risk of moisture build-up, which improves the transparency of the polycarbonate and promotes a healthier environment for plants.
  Thanks to the fine perforations, the tape blocks dust, dirt, insects and other small debris from entering the polycarbonate chambers. This protects the structure and maintains the aesthetic appearance of the panels for longer.
• closing tape
• front profile
• plant support kit
• screws for mounting the metal structure
• screws with rubber washers for screwing on polycarbonate
• hinges and hooks
• assembly instructions

Product dimensions available:

• polycarbonate greenhouse 3×4 m
• polycarbonate greenhouse 3×6 m
• polycarbonate greenhouse 3×8 m
• polycarbonate greenhouse 3×10 m
• polycarbonate greenhouse 3×12 m

You can extend the basic version of the product:

Straight side window for greenhouse 185 zł
Add to your order if you want even better ventilation for your greenhouse. The window is made of 20 x 20 mm profiled steel tube. External dimensions of the window: 95 cm x 66 cm. Self-tapping screws are included. 

Automatic side window opener £250

By enriching your greenhouse with an automatic ventilation kit, you don't have to worry about your plants overheating. The automatic greenhouse window opener facilitates ventilation without the need to open the windows manually. It works in a simple way: when the temperature in the greenhouse reaches +18°C, a special fluid in the working cylinder starts to expand, which causes the window to open automatically. The higher the temperature, the wider the window opens - up to a maximum of 45 degrees when the temperature reaches +25°C.
The opener can lift a window weighing up to 7 kg.

Polycarbonate garden greenhouse - an ergonomic and functional solution for years to come

A polycarbonate greenhouse is a clever design with straight, vertical side walls that are set at right angles to the ground. This design increases the efficiency of the usable space, allowing you to place your plants more comfortably compared to a curved (tunnel) greenhouse. Thanks to the vertical walls, you make maximum use of the greenhouse space.

In addition, to facilitate the regulation of humidity and temperature, the greenhouse is equipped with two single-leaf entrances - on the front and back. Ventilation is also provided through windows measuring 85 cm x 40 cm located in the door. You can open or close them as required. In this way, you precisely control the air, maintaining an optimal microclimate inside the greenhouse.

6mm or 10mm cellular polycarbonate - which option is right for you

The choice between 6 mm and 10 mm polycarbonate depends on the climatic conditions and the type of crop you plan to grow. Polycarbonate 6 mm will be an excellent choice for those who plan to grow mainly in the warmer months or in regions with milder climates. It is also a favourable option in terms of cost, offering a good compromise between price and insulation properties.

The 6mm polycarbonate provides excellent light transmission while reducing the negative effects of UV radiation, protecting plants from sunburn. It is resistant to typical weather conditions such as rain, snow and hail. Withstands a load of up to 180 kg/m², which corresponds to around 30-40 cm of fresh snow. This makes greenhouses made of this material very stable and safe even in winter.

Polycarbonate 10 mm provides better thermal insulation and higher snow load resistance - withstands loads of up to 200 kg/m², which corresponds to approx. 35-45 cm of fresh snow. If you plan to use your greenhouse all year round or grow crops in colder areas where winters are more severe, 10mm polycarbonate will be a better option. A thicker layer of material retains heat more effectively, which is key to maintaining a stable temperature during the winter months, and also ensures that the structure lasts longer in harsh weather conditions.

Thanks to the chambered structure of polycarbonate, the greenhouse retains heat better than glass or a single sheet of plastic. The chambered structure creates a barrier that reduces heat loss, which promotes plant growth, especially during colder days and nights.

Crab system - stable construction 

The greenhouse has a rigid and durable construction thanks to the use of special connectors in the "crab" system (X- and T-shaped connectors). These ensure that the arches and cross sections are evenly loaded. This solution avoids damage to the greenhouse from snow on the roof. 

How to prepare the site for the installation of a garden greenhouse

You can place the greenhouse directly on cleared ground. Choose a location that receives good sunlight and is as sheltered as possible from strong winds. Avoid places where rainwater can collect. Remove any stones, roots and other obstacles from the area to be used for the greenhouse structure. Level the ground so that the surface is as even as possible. If it is uneven, fill in the gaps or collect excess soil. If the area tends to collect water, take care of drainage. You can add a layer of gravel or make trenches to drain the water. 

Why make a hardened base for a polycarbonate garden greenhouse?

The foundation is the basis of any greenhouse. Without it, even the best structure can be damaged. A well-made foundation is a guarantee of stability, safety and longer use.
Tips for building the foundation

• Level the ground. The foundation must be perfectly horizontal, both longitudinally and diagonally.
• Pay attention to the width. Make sure that the foundation will accommodate the entire greenhouse structure.
• Greenhouse fixing. Use carpentry angles to securely connect the greenhouse to the foundation.

What should the foundations for a polycarbonate greenhouse be made of?

Concrete screed: 

What is it? Concrete is a mixture of cement, sand and water which, when set, forms a very durable base.

How to perform? Dig trenches approximately 40 cm deep and 30 cm wide. Prepare the concrete, pour it and level it.

Pros: The most stable and durable solution.

For whom? Ideal for larger greenhouses or in areas exposed to strong winds.

Concrete blocks or paving stones:

What is it? Ready-mixed concrete elements laid on a previously prepared substrate.

How to perform? Lay the blocks along the base of the greenhouse and join the joints with mortar.

Pros: Cheaper and quicker to complete than concrete screed.

For whom? Good for medium and small greenhouses.

 

Stone foundation

What is it? Stones laid along the base of the greenhouse, which can be further encased in concrete at the fixing points.

How to perform? Once the stones have been laid, backfill with soil and level the area.

Pros: Cheap, but labour-intensive.

For whom? Works well with small and lightweight greenhouses.

 

Wooden foundation

 

What is it? Wooden beams (e.g. 100×100 mm) connected by carpentry angles.

How to perform? Connect the beams, impregnate the timber and set the whole into the ground.

Pros: Easy and quick installation.

For whom? For those looking for simple solutions for the short term. Remember to waterproof regularly though!

 

Galvanised steel foundation

What is it? The finished metal frame on which the greenhouse is set.

How to perform? It does not require much preparation - all you need to do is level the ground and fix the structure.

Pros: Quick to install, weatherproof.

For whom? For those who value comfort and durability.

Supply and installation of greenhouses

The ordered greenhouse will be delivered to you in two transports.
1. shipment by courier includes:
- confirmation of purchase
- assembly instructions 

- the small accessories needed to assemble it. The second package is bulky: with polycarbonate sheets and the skeleton of the structure.

2. Dedicated transport from our distribution centre

• polycarbonate
• large structural components

Remember: When assembling the greenhouse, pFollow the installation instructions enclosed. When starting to build the greenhouse, ensure you have enough space and an extra person to help. It takes an average team of two people with experience a few hours to assemble a greenhouse.