How Much Does a Greenhouse Cost? (2026)
Prefab kits fall at the lower end of the price range, while custom-built structures cost more. Simple hoop greenhouses cost the least and are easy to construct, but they also
Greenhouse glazing materials serve the dual purpose of insulation and protection. Your choices here can influence both the cost and the quality of insulation: Plastic/polyethylene – An affordable option at $0.10 to $0.50 per square foot. Corrugated fiberglass – Costs between $1 to $2 per square foot.
A greenhouse costs $5 to $30 per square foot or $2,500 to $15,000 on average for a 500-square-foot structure. Building a large commercial greenhouse costs $2 to $25 per square foot. The cost to build a greenhouse depends on the size, materials, and whether it's prefab or custom-built. Get free estimates from greenhouse builders near you.
The frame of a greenhouse is the structure's support system. Typically, greenhouse frames are made from strong wood or steel that can stand up to the elements. Wood framing costs about $1 per linear foot, while steel costs $2.50 per linear foot.
Geodesic or dome greenhouses are round structures with domed tops. They can be made from a variety of materials, including glass and plastic, and cost between $10 and $25 per square foot. While these types of greenhouses have a relatively small footprint, they can house many plants because of their tall shape.
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