+44 (0)203 286 7463

Having a greenhouse is a fantastic opportunity for anyone who wants to grow their own plants, vegetables, and flowers. It also provides an excellent way to enjoy the outdoors even when it’s too cold or rainy. 

But before you start building your greenhouse, it’s important that you invest in a solid foundation for your greenhouse.

What Is A Greenhouse Foundation?

A foundation is a form of structural support that provides stability to a building. Traditionally they are made from concrete or mortar – although there are some easier options available now too – and the purpose is to provide a solid and level surface for your greenhouse.

A foundation is an essential part of any greenhouse. It provides the much-needed stability that can help protect your greenhouse from high winds and difficult ground. 

A greenhouse foundation also helps to support the weight of the greenhouse, which could be difficult on a surface like grass or soil. The foundation will make sure that your structure stays in place while providing an area of protection from outside elements.

Ultimately, a foundation will provide much-needed stability and protection, ensuring your greenhouse stays standing whatever the weather for years to come. 

Types Of Greenhouse Foundations

The type of foundation that would work best for you depends on the type of ground around your property. For example, if you have a lot of sand, it may be best to install a slab. If you have clay or loam soil, it may be best to install a pier foundation.

In addition to the type of ground you have, another thing to consider is your climate. For example, if you live in a region that is prone to strong winds, then it might be best to invest in an elevated greenhouse so that it can withstand high winds without being damaged.

It’s also important to remember that there are different types of foundations for greenhouses: conventional and modular. Modular foundations make the construction process much quicker and they are generally cheaper than conventional options. 

If you want an easy installation option or the benefit of being able to move your foundation in the future, a modular foundation could be the right choice. This type of foundation can be built using a cellular grid system, like those available in our greenhouse foundation packs

What Are The Benefits Of A Foundation For A Greenhouse?

There are many benefits to having a foundation for your greenhouse. One of the most obvious benefits is that it provides an additional layer of protection from high winds. Not only does this mean you’ll be protecting your greenhouse, but you will also be protecting your plants and flowers inside the greenhouse. 

Another benefit is that it gives your greenhouse more stability. When there’s a foundation, the frame of your greenhouse can’t shift with the ground in any direction whatsoever. This reduces damage and ensures the structural integrity of your greenhouse remains strong.

A foundation also helps make sure that no water can get into the frame or soil of your greenhouse and rot away at your plants.

How To Build A Foundation For Your Greenhouse

If you do decide that you need a foundation for your greenhouse, then it’s time to start planning. There are a few considerations that you’ll need to make when building one, including:

  • What type of foundation will work best?
  • How much space will I need?
  • What height should the walls be?
  • How should I insulate the foundation?

The answers to these questions depend on your specific needs and what type of greenhouse you want. 

If you plan on using your greenhouse year-round, then you may want to think about adding insulation to the walls for better warmth retention in the winter months. 

Rain also affects your greenhouse; if rain falls at a high rate and intensity, a downpour can cause leaks in your greenhouse. To avoid water leakage, use tarpaulin sheets or other waterproof material around the base of your walls and keep water away from the foundation by placing soggy ground cloths or pond liners.


Foundations are necessary for greenhouses, but they vary greatly depending on the type. Constructing a foundation is typically a DIY project, so it’s easy to do with a little research and patience.

A greenhouse without a foundation will likely be top-heavy and unstable, which can make it challenging to use. A foundation will provide your greenhouse with the necessary support for it to function well for years to come.

The type of foundation you have on your greenhouse will impact its accessibility, durability, and cost. Installing a foundation is one of the best investments you can make for your greenhouse.

Shopping Cart
There are no products in the cart!
Continue Shopping