How Long Does It Take to Build a Greenhouse?

Introduction: Why Build Time Matters

If you're planning to invest in a greenhouse—whether for a small farm or a large-scale agri-business—knowing how long it takes to build is critical. Timing affects everything: from planting schedules and harvest timing, to capital planning and return on investment (ROI). For commercial growers, even a week's delay can mean missed revenue during peak seasons.

This article provides a practical breakdown of greenhouse construction timelines, the key factors that affect build duration, and how to accelerate your project while ensuring quality.

2. Key Factors That Influence Greenhouse Construction Time

The time it takes to build a greenhouse depends on several important variables:

✅ Type of Greenhouse Structure

• Plastic film greenhouses (e.g. tunnels) are fast and flexible.

• Polycarbonate greenhouses require more framing and sealing.

• Glass greenhouses are more complex and labor-intensive.

✅ Size of the Project

• A 200 sqm hobby greenhouse may take just a few days.

• A 2,000 sqm commercial facility with climate control may take weeks or months.

✅ Site Preparation

• Ground leveling, drainage, foundations, and access roads can take up 20–30% of total project time.

• Soil conditions and topography greatly affect this stage.

✅ Customization & Complexity

• Off-the-shelf kits are faster to assemble.

• Custom-built structures (with automation, heating, and irrigation) take longer.

✅ Season & Weather Conditions

• Construction during rainy, snowy, or stormy seasons can cause delays.

• Windy conditions may halt roofing or film installation.

✅ Team Experience & Logistics

• Experienced greenhouse builders work more efficiently.

• Local regulations, shipping delays, and labor availability all play a role.

3. Typical Build Time by Greenhouse Type