Commercial Greenhouse Planning Guide

A commercial greenhouse is an environmental control system. The structure exists to support equipment that manages temperature, humidity, airflow, light, and water — the conditions your plants need to grow well. This is what makes a commercial greenhouse different from any other building you might buy.

We've been designing and manufacturing these systems for 80 years. In that time, the buyers who've worked with us have ranged from small educational programs putting up their first greenhouse to large commercial operations expanding existing facilities. They've all faced the same set of decisions, in roughly the same order, and we've helped them through it.

Greenhouse projects vary in complexity. A simple structure with passive ventilation and a heater can be installed by a motivated buyer themselves — our structures arrive pre-drilled and pre-cut, essentially as large erector sets ready to be bolted together. More equipped projects — greenhouses with mechanical ventilation, evaporative cooling, environmental controls, and integrated systems — involve more coordination. We work with both kinds of buyers regularly, and the right approach depends on what you're trying to build.

Every decision about the structure connects to decisions about environmental control. Roof shape affects light transmission and snow load. Sidewall height affects ventilation and equipment placement. Covering material affects energy efficiency and light quality. Frame spacing affects what equipment can be installed. These choices shape what you can grow, how efficiently you can grow it, and what your operating costs will look like over the lifespan of the greenhouse.

This is also why the quote for a commercial greenhouse looks different from any other building quote. You're not just buying a structure. You're buying a system specified for your operation in your location — ventilation sized for your climate, heating sized for your coldest expected day, structural elements engineered for your wind and snow loads. The line items reflect components that work together to create the growing environment your operation needs.

The rest of this guide walks through what to expect as your project moves forward — from your first conversation with us, through funding, design, manufacturing, installation, and operation. We've put it together because the buyers who do this well share a common starting point: they understand what they're building and they have a clear partner helping them navigate the project. We can be that partner.

Most commercial greenhouse projects get funded through some combination of cash, financing, grants, and institutional budgets. Many projects use more than one source — a grant covers the structure, operating funds cover equipment, financing handles expansion later. The right combination depends on your situation, and we're happy to think through it with you.

Cash or operating capital. Common for established operations expanding existing capacity. The fastest path because there's no external approval process.

Equipment financing. Available through agricultural lenders and equipment financing companies. Typically structured as 5-10 year loans against the greenhouse and equipment. Useful when you have credit but want to preserve operating capital for other things.

Grants. Common for educational institutions, research facilities, and some commercial operations. USDA programs, state agricultural programs, education-specific grants, and private foundation funding all exist. Grant timelines vary — anywhere from 3-12 months to secure, sometimes longer depending on the program.

Institutional procurement. Schools, universities, government agencies, and nonprofits typically fund through their organization's standard procurement process. This usually involves board approval, budget cycles, and sometimes bidding requirements. Plan for 2-6 months of institutional process even after the funding decision is made.

Many projects combine sources. A grant covers the structure, operating funds cover equipment, financing handles expansion later. Knowing what combination works for your situation often takes conversations with both your financial advisors and the manufacturer.

The structure cost is the part the configurator handles directly — real pricing for the specific configuration you choose, available immediately. But a complete project includes costs beyond the structure: foundation work, utility connections, installation labor if you're not having us install, permitting fees, site preparation. The total project cost is meaningfully higher than the structure alone.

When sizing your funding request, plan for both the structure cost from the configurator and the additional project costs you'll arrange separately. The configurator gives you a concrete number for the structure. The other costs depend on your specific site, contractor rates, and local conditions.

If you'd like help thinking through what your specific project might require beyond the structure cost, our team can walk through that with you. We've seen enough projects across different regions and site conditions to help you build a realistic working budget.

Securing funding takes time, especially for grant-funded and institutional projects. The good news is there's productive work you can do in parallel rather than waiting passively. Buyers who use the funding period well can move significantly faster when funding lands.

Talk to your local building authority about permitting. This is free and doesn't commit you to anything. Permitting requirements and timelines vary significantly by jurisdiction, so knowing what's required before you have funding lets you account for it in your overall schedule. If you want help thinking through what to ask, let us know — we've seen enough variation across jurisdictions to point you toward the right questions.

Identify potential sites and assess constraints. Available space, utility access, drainage, vehicle access for delivery, sun exposure. The more site work you've done before funding arrives, the faster you can move once you have it.

Get specific pricing for your project. The configurator produces real pricing for specific configurations in minutes. Knowing the actual cost of what you want to build helps you size your funding request accurately and shows funding sources that you've done your homework.

Check engineering requirements early. Some jurisdictions require stamped engineering drawings, some insurance companies require them, and structures with public access typically need them. Some of our structure series can be engineered to meet these requirements while others can't. If you'll need stamped drawings, knowing early helps you choose the right structure series for your project — your sales rep can guide you toward options that work for your specific situation.

Buyers who do this work in parallel with funding don't lose time. When the funding decision comes through, they're ready to move forward immediately.

Most commercial greenhouse manufacturers handle pricing the same way: you reach out, share information about your project, wait for a custom quote to come back, then schedule a call to walk through it. The wait between request and quote typically runs days to weeks, sometimes longer for complex projects.

We do it differently, and the difference is intentional.

The configurator on this site lets you spec out your greenhouse and see real pricing immediately — not a range, not an estimate, but actual pricing for the specific configuration you choose. Structure, equipment, options, all priced in real time as you build out your project.

This matters for a few reasons. You can explore options without committing to a sales conversation — see what changes when you adjust size, equipment level, or covering type. You can size your project to your budget by adjusting variables until you land somewhere realistic. You can put together preliminary numbers for grant applications, board presentations, or internal planning without waiting for a quote cycle. And when you do connect with our team, the conversation starts from real numbers you’ve already explored rather than from scratch.

We made this choice — publishing real pricing transparently — because it serves buyers better. The traditional model where pricing is hidden behind sales conversations works for manufacturers more than buyers. Buyers waste weeks waiting for quotes they could have generated themselves. They have less control over the planning process. They sometimes commit to manufacturers without truly knowing what alternatives cost.

For most buyers, the configurator is the right starting point. Use it to develop a sense of what your project actually costs before you reach out. Adjust the specs to see how different choices affect price. Get familiar with the equipment options and what they do.

When you’re ready to talk through your project, the configurator output gives both of us a concrete starting point. We can discuss specific configurations rather than abstract possibilities. We can address your specific questions about why certain equipment is recommended for your situation. The conversation is faster and more useful because we’re working from real numbers.

Some projects involve elements the configurator doesn’t handle — unusual sizes, specific code compliance requirements, complex equipment integrations, gutter-connected configurations, custom modifications. For those, we provide traditional custom quotes after a conversation about your specific needs.

When this is the path your project takes, our process is straightforward. We walk through your project requirements together. We put together a quote that reflects your specific situation. We then schedule a call to walk through the quote line by line, so you understand what each component does and why it’s recommended for your project before you decide anything.

Whether your quote comes from the configurator or from a custom quoting conversation, it'll include more line items than buyers expect their first time through. That's not because we're padding it — it's because a commercial greenhouse is a system, not a single building, and each component shows up explicitly. The quote breakdown helps you understand exactly what you're paying for and what each piece does.

The configurator and cost guides on this site explain individual equipment categories in detail. If you see a line item you're not sure about, those pages walk through what the equipment does, why it's typically recommended, and how it affects your operation. When in doubt, ask — we'd rather you understand the quote fully than commit to something you're unsure about.

Permitting varies more than buyers expect. Most commercial greenhouses qualify as agricultural structures in their jurisdiction, which often simplifies the process — agricultural classifications frequently don't require stamped engineering drawings or the same level of inspection as commercial buildings. But this varies significantly by municipality, by intended use, and sometimes by insurance company requirements.

A greenhouse for commercial production might need only basic agricultural permits. A school greenhouse where students will be present often requires more rigorous permitting. A greenhouse in a hurricane zone might need stamped drawings showing specific wind load capacity. A greenhouse with public access — retail garden centers, agritourism operations — may be classified differently than production-only greenhouses. None of these are universal rules. They’re patterns that play out differently depending on where you’re building and what you’re building for.

The most useful thing you can do early — before you finalize your design — is contact your local municipality and ask about their requirements for your specific situation. This is free and doesn't commit you to anything. The questions worth asking include:

What classification does a commercial greenhouse fall under in this jurisdiction? Agricultural, commercial, or something else?

What permits are required for this classification, and what's the typical timeline for approval?

Do you require stamped engineering drawings, or are manufacturer-provided drawings sufficient?

Are there specific structural requirements for this region — wind load, snow load, seismic — that need to be documented?

If the greenhouse will have public access or students present, does that change the classification or requirements?

Getting clear answers early prevents the most common permitting problems we see, which is buyers discovering specific requirements partway through the project when they could have planned for them upfront.

Some projects need stamped engineering drawings — required by certain municipalities, certain insurance companies, and most structures with public access. Some of our structure series can be engineered to meet these requirements while others can't.

If your situation requires stamped drawings, this affects which structure series make sense for your project. Knowing this upfront helps you choose appropriately before you've gotten too far into planning around a series that won't work for your permitting needs.

If you're not sure whether your project requires engineering, ask your local building authority and your insurance company. Both can have requirements that affect the answer. Your sales rep can help you understand which series options work once you know what's required.

Permitting timelines vary from a few weeks to several months depending on jurisdiction. Slow jurisdictions can extend your overall project timeline significantly if you wait to start permitting until other planning is complete.

The buyers who navigate permitting smoothly tend to handle it in parallel with their other planning work — starting the municipality conversation while still developing their design, submitting applications while finalizing equipment selections, getting inspections scheduled during the manufacturing phase. This compresses your overall timeline by ensuring permitting doesn't become the bottleneck that delays installation.

If permitting is unfamiliar territory for you, that's normal — most first-time buyers haven't navigated commercial construction permits before. Our team can help you think through what to ask your municipality and how to interpret what they tell you. We've seen enough variation across jurisdictions to point you toward the right questions.

Once your greenhouse is built and equipped, the relationship with Conley's continues, though the nature of contact typically changes.

The first months of operation are when most equipment questions surface. Buyers often have questions about how to operate specific systems — proper settings for environmental controls, maintenance schedules for evaporative cooling pads, calibration of automated systems. Your sales rep is the right contact for these questions, and they'll involve our engineering team when technical detail is needed.

This is also when any installation issues that weren't caught immediately tend to appear. If something isn't working the way it should, contact us. Most issues are quickly resolved once we understand what's happening.

Equipment we provide carries manufacturer warranties — coverage varies by equipment type and manufacturer. If something fails under warranty, reach out to your sales rep with the specifics. We coordinate the replacement process with the equipment vendor.

Greenhouse equipment requires ongoing maintenance to perform reliably — keeping evaporative cooling pads clean, lubricating fan motors, replacing covering material as it ages, checking structural connections. We can answer maintenance questions about the equipment we provide and point you toward best practices.

For maintenance practices specific to your operation — how often you need to clean pads given your water source, what your specific climate means for covering lifespan — your direct experience over time will be the best guide. We can give you starting points based on what we see across operations, but your specific situation will inform the details.

The most common reason buyers reach back to Conley's after the first year is to expand or add to their original project. Adding lighting they didn't initially budget for. Adding benches as their operation grows. Considering a second greenhouse. Adding equipment they decided to defer in the original project.

These conversations work similarly to your original project — we can quote additions, expansions, or modifications through our normal process. Buyers who've already worked with us once typically move through this faster because we know your operation and you know our process.

A few things are important parts of greenhouse operation but aren’t areas where we provide guidance: crop-specific growing strategies, pest and disease management, soil and growing media selection, climate management strategy beyond what equipment provides, business operations and marketing.

For these, your best resources are agricultural extension services, industry associations specific to what you're growing, university agriculture programs, and other growers in your area. Each of these communities has expertise built around growing specifically rather than around the structures and equipment we provide.