Henning Construction
ServicesGreenhouses

Greenhouses

Cedar-framed, built for serious growers and serious aesthetics.

Free estimates · Serving Middle Tennessee · Insured and bonded

Extend your growing season with a custom-built greenhouse designed around your space and goals. We build durable, functional greenhouses that blend craftsmanship with practical design — giving you a dedicated place to grow plants, start seedlings, and enjoy gardening throughout the year.

What's included

  • Cedar frame with galvanized hardware throughout
  • Twin-wall polycarbonate panels for insulation and diffusion
  • Ridge vent and side louver ventilation systems
  • Raised bed framing integration
  • Concrete footer foundation
  • Custom sizing available
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Custom cedar greenhouse with polycarbonate panels built by Henning Construction in Middle Tennessee

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(615) 477-3746

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Common questions

How much does a custom greenhouse cost in Middle Tennessee?

A cedar-framed greenhouse with twin-wall polycarbonate panels typically runs $8,000–$18,000 depending on size and foundation. We build custom so we quote based on your exact specs.

What sizes do you build?

We build fully custom, so any size works. Most residential greenhouses run 8x12 to 12x20. We size based on what you want to grow, your yard, and your budget.

Is twin-wall polycarbonate better than single-pane glass?

Yes for most homeowners. Twin-wall is more insulating, diffuses light more evenly for plant health, and holds up to hail and UV far better over time. Glass looks great but is heavier, more expensive, and breaks.

How long does it take to build a greenhouse?

Most custom greenhouses take one to two weeks to build once footings are cured. We plan the foundation first, let it cure properly, then build the frame and panels.

Where on my property can I put a greenhouse?

Greenhouses are classified as accessory structures in most Tennessee municipalities and are generally required to be placed in the backyard. They must meet setback requirements from property lines — typically 5 to 10 feet depending on local code. Some neighborhoods or HOAs restrict accessory structures entirely or limit their size. We check all of this before finalizing your design.

Do greenhouses need ventilation by code?

Building codes do not always specify greenhouse ventilation directly, but proper ventilation is critical for plant health and structural longevity. Without it, heat and humidity buildup can damage the frame and create an environment where plants cannot thrive. We design ridge vents and side louvers into every greenhouse we build — not as an add-on, but as a standard part of the structure.

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greenhouses project?