Building a Commercial Greenhouse: Planning, Design, and Site Selection

Commercial greenhouse efficiency hinges on structure type, planning, and site. Get these right for profitability.

Greenhouse Types

• Detached (Quonset): Arched rafters, solid end walls. Common for commercial. Sidewalls limit growing space slightly.
• Ridge (gutter-connected): Shared gutters, no interior walls = max space. Gabled (fiberglass/glass) or curved arch (polycarbonate/polyethylene). Multi-unit = "range."

Planning Essentials

• Crops, growing period, containers, medium, methods, annual space needs, marketing (retail/wholesale), capital.

Site Selection Criteria

1. Space: 2+ acres minimum (parking, access, storage, expansion). Wholesale needs more.
2. Zoning: Confirm permitted zones, setbacks, signage, parking, building codes.
3. Highway access: Retail = high-traffic road. Wholesale = interstate access.
4. Environment: Avoid industrial pollution.
5. Climate: Avoid extreme temps—winter light drives growth.
6. Slope: Gravel base, 6–12" above grade for drainage.
7. Water: Test natural sources for impurities. Size supply to area, weather, crops, season, control system.
8. Electricity: Engage utility and electrician early for layout and capacity.
9. Expansion: Plan for growth from day one.

Assess carefully. Plan meticulously. Good luck with your commercial venture.