When choosing a foundation for a greenhouse in Norway, it is important to choose a solution that can withstand the varying climate conditions, including frost, snow, and strong winds. Here are some common types of foundations that are well suited for greenhouses in Norway:
Concrete Foundation
Pros: A concrete foundation provides the best stability and durability, especially in areas with high winds or heavy snow. It is frost-resistant and provides a solid base that prevents the greenhouse from moving or becoming crooked over time. Cons: Concrete foundations are more time-consuming and expensive to install compared to other options. They also require precise measurements and planning.
Pressure-treated beam foundation
Pros: Pressure-treated beams are a popular option that provide good support and are more economical than concrete. They are resistant to rot and moisture, making them a good choice for the Norwegian climate. The beams can be easily adjusted to ensure that the greenhouse is level. Cons: Over time, wood can break down, even if it is pressure-treated, and therefore requires maintenance and eventual replacement.
Ground pegs (screws or anchors)
Advantages: Ground pegs or anchors are a quick and easy solution for securing your greenhouse to the ground, without the need for digging or pouring. This is a flexible solution that can be adapted to different terrain types, and provides good stability in areas with moderate weather. Disadvantages: This type of foundation provides less stability than concrete, especially in areas with high winds or uneven terrain. It may also be less durable in areas with heavy snow loads.
Point foundation with concrete blocks
Advantages: Point foundations use concrete blocks placed under the corners and along the sides of the greenhouse. This provides a solid base that is easier to install than a full concrete foundation. It provides good stability and protects against frost heave. Disadvantages: Requires more preparation than simpler alternatives such as ground pegs or gravel, but does not provide quite as much stability as a full concrete foundation.
Wooden decking
Wooden decking as a foundation for a greenhouse involves using pressure-treated beams as a framework on the ground. These beams form a solid and stable base to which the greenhouse can be attached. Great if you plan to have tables, chairs or other furniture in the greenhouse. The beams are resistant to rot and moisture, making them suitable for Nordic climates. This foundation is easier and faster to install than concrete, and it provides good stability while being adjustable to ensure the greenhouse is level. It is a popular choice for small to medium-sized greenhouses.
