It is generally accepted that the term “support room” in horticulture includes a variety of functions such as: material processing, storage, substrate potting, transplanting, transportation, equipment housing (heating, electrical and irrigation systems), offices, utilities, retail areas and other uses.

The first question a grower asks is: “How much support room do I need?” Most industry consultants and greenhouse producers will recommend that support rooms should generally be at least 10% of the total greenhouse production area. For example, if you have 100,000 ft² (9,290 m²) of greenhouse area, you will need approximately 10,000 ft² (929 m²) of support room area.

However, while you may know how much support room you need now, how much will you need in the future? If you also plan to add shipping areas, storage, automation equipment and offices, you will need more space. It is wise to ask your support room builder to provide a detailed design drawing of the different functional areas you plan to build. You will find that no grower will think that their support room area is too large.

Another important point to consider when considering auxiliary rooms is choosing the best location for construction. As greenhouse production continues to expand, the design that looks the best now may be the worst design in five years. Some important issues, such as truck access and public access, may limit future expansion. Therefore, making a 10-year plan for the development of the greenhouse in advance will give you a clearer idea of ​​how much auxiliary room space you will need in the future.