Quick Answer: A hydroponic shipping container grow in Ontario starts with a 40ft high-cube one-trip bin retrofitted with NFT or DWC racks, LED lighting, HVAC, and a nutrient reservoir. It is one of the more demanding ways to convert a shipping container for a working use. A single 320 sq ft container holds 4,000 to 8,000 plants and produces 2 to 6 tons of leafy greens annually, year-round. Van Blanc has shipped containers across Ontario since 1995. Honest 4.9-star service, 1-3 day delivery from 4 Brantford yards.
In This Guide
- Why Is the 40ft High Cube the Standard Hydroponic Container Shell?
- What Are NFT, DWC, and Ebb-and-Flow Hydroponic Systems?
- What LED Lighting, HVAC, and Climate Control Does a Container Grow Need?
- What Crops Can You Grow in a Hydroponic Container, and How Much?
- How Much Water and Power Does a Hydroponic Container Need in Ontario?
- Should You Buy a Turnkey System or Do a DIY Container Conversion?
- Who Are the Ontario and Canadian Hydroponic Container Players?
- How Do You Prepare a Site for a Hydroponic Container Delivery?
- What Do the Economics of a Hydroponic Container Farm Look Like?
- How Do You Choose the Right Container Shell From Van Blanc?
- Frequently Asked Questions
Reading time: about 14 minutes.
Why Is the 40ft High Cube the Standard Hydroponic Container Shell?
The 40ft high cube is the standard hydroponic container shell because its 9’6″ interior height clears vertical grow racks, overhead LED arrays, and an HVAC duct in one footprint. A 40ft HC gives roughly 320 sq ft of growing space, holds 4,000 to 8,000 plants, and yields 2 to 6 tons of leafy greens a year, indoors, all year.
Almost every hydroponic container farm in Ontario starts with the same piece of steel: a 40ft high-cube shipping container. The extra foot of interior height (9’6″ instead of 8’6″) matters more than people expect once you stack vertical grow towers, hang LED arrays, and run an HVAC duct overhead. By the time the system designer has accounted for the floor, the catwalk, the rack height, the light gap, and the air-handler clearance, that extra foot is the difference between a working farm and a system you have to crouch through.
The 320 sq ft footprint is roughly the same as a single-car garage. Inside that footprint, growers regularly run 4,000 to 8,000 plants at any given moment. Freight Farms reports more than 787 plants harvested weekly from one of their Greenery S units, with annual output landing between 2 and 6 tons of leafy greens depending on crop mix. That output replaces 1 to 2 acres of field lettuce.
Van Blanc has been supplying the steel for these conversions since the hydroponic build-out market started accelerating in Ontario (see our 40ft high cube inventory). When a Toronto integrator, a Niagara cannabis operator, or a Six Nations community-food project calls about a hydroponic conversion, the question is rarely about the system inside. They have a system supplier. What they need is a structurally sound 40ft high cube, properly graded, delivered on time, so the build can plan around it.
Paul LeBlanc, owner: “A hydroponic build lives or dies on the box it starts with. I tell every grower the same thing: the shell is the cheapest part of the project, so buy the clean one. A one-trip 40ft high cube gives the integrator a square, dry, rust-free box to work in. Skimp here and you pay for it on every install step after.”
Why One-Trip Containers Dominate Hydroponic Builds
Cargo Worthy and Wind & Watertight units have visible rust, paint variance, and small dents. Those are fine when the box is a feed store on the back forty. They are not fine when the integrator has to spray-foam the interior to R-25, drill through walls for HVAC penetrations, and certify electrical to ESA standards. One-Trip 20ft and 40ft HC containers ship from manufacturer to North America with one cargo load to offset freight, then arrive essentially new: original factory paint, clean Corten weathering steel, no rust, doors that operate without coaxing. Every reputable Ontario hydroponic system company specifies a one-trip 40ft HC as the starting shell.
What Are NFT, DWC, and Ebb-and-Flow Hydroponic Systems?
NFT, DWC, and ebb-and-flow are the three hydroponic growing methods that cover roughly 95% of container farm installs in Ontario. Each has a place, and the right choice depends on the crop mix and how forgiving the operator wants the system to be.
Nutrient Film Technique (NFT)
NFT runs a thin film of nutrient solution down a sloped channel or pipe. Plant roots dip into the film, absorb nutrients, and the solution recirculates back to the reservoir. NFT setups use up to 60% less water than DWC and roughly 35% less energy because the pumps move smaller volumes and aeration needs are lower. NFT racks stack vertically very efficiently, which is why most Ontario container farms growing lettuce, basil, and other small-root leafy crops default to NFT.
Deep Water Culture (DWC)
DWC suspends plants on floating rafts above a reservoir of aerated nutrient solution. Roots sit in oxygenated water full-time. The system is the most forgiving for new operators because the root environment buffers temperature swings and pump failures. If an NFT pump dies, plants are dry inside an hour. If a DWC airstone fails, the operator has hours to respond before dissolved oxygen drops critically. Freight Farms’ Greenery S runs DWC for that operational reliability.
Ebb-and-Flow (Flood-and-Drain)
Ebb-and-flow floods a grow tray with nutrient solution on a timer, then drains it back to a reservoir. Plants sit in expanded clay, perlite, or coconut coir. The cycle delivers oxygen to roots between floods. Container farms running heavier fruiting crops, microgreens trays, or transplant nurseries lean on ebb-and-flow for the substrate stability it provides.
| System | Best for | Water use | Forgiveness |
|---|---|---|---|
| NFT | Lettuce, basil, small herbs | Lowest | Low (pump-dependent) |
| DWC | Leafy greens, mixed lettuce | Highest | High (root buffer) |
| Ebb-and-Flow | Microgreens, fruiting plants, propagation | Moderate | Moderate |
What LED Lighting, HVAC, and Climate Control Does a Container Grow Need?
A hydroponic container grow needs full-spectrum LED lighting, a sized HVAC system, and a climate-control panel managing temperature, humidity, and CO2. Lighting is where container hydroponics earns its place against greenhouse production. Inside a steel box with zero natural light, the operator dictates the photoperiod, spectrum, and intensity. Most Ontario container farms run full-spectrum white LEDs (4,000K to 5,000K) supplemented with deep-red diodes around 660 nm for flowering signals on fruiting crops.
Typical lighting load on a 40ft HC hydroponic build runs 12 to 18 kW of LED draw, organised across 20 to 32 fixtures depending on rack count. Photoperiods run 16 to 18 hours daily for leafy greens, 12 hours for fruiting crops. Operators chase a daily light integral (DLI) between 12 and 22 mol/m²/day depending on crop.
Why HVAC Sizing Is the Make-or-Break Spec
LEDs run cooler than legacy HID lights, but inside a sealed 320 sq ft steel box, even efficient LEDs dump significant heat. Container farms run dedicated HVAC sized for 1.5 to 2.5 tons of cooling, plus a dehumidifier rated for 60 to 120 pints per day, plus CO2 enrichment to 1,000 to 1,200 ppm. An undersized HVAC turns the bin into a sauna by hour three and crashes the crop. The integrator who specs the system should size HVAC for full-light, full-canopy summer-load conditions, not the bench number on a datasheet.
Climate control panels typically run a small industrial PLC that reads temperature, humidity, CO2, pH, EC (electrical conductivity of the nutrient solution), and water level. Modern systems push that data to a cloud dashboard so the operator can pull up the farm from a phone. Freight Farms’ farmhand software is one common example; Growcer and Just Vertical have their own platforms.
What Crops Can You Grow in a Hydroponic Container, and How Much?
Container hydroponic farms in Ontario are profitable on a narrow band of crops. The economics work for fast-growing, high-margin, perishable plants where local production beats the long supply chain from California, Mexico, or Florida.
The Honest Crop Shortlist
Lettuce (butterhead, romaine, leaf), basil, arugula, kale, swiss chard, mustard greens, cilantro, parsley, mint, and edible flowers cover roughly 90% of commercial container farm output in Canada. Microgreens are the high-margin specialty layer on top: pea shoots, sunflower microgreens, radish, broccoli microgreens. Fruiting crops (tomatoes, strawberries, peppers) are technically possible but cut yields by half or more per square foot because of the larger plant footprint and longer cycle time.
Typical commercial yields per 40ft HC hydroponic container in Ontario:
- Lettuce-heavy mix: 4 to 6 tons per year, 200 to 400 lb harvested weekly
- Basil and herb-focused: 800 to 1,200 lb fresh basil monthly
- Mixed leafy plus microgreens: 3 to 5 tons leafy greens plus 80 to 150 lb microgreens monthly
One 40ft container replaces approximately 1 to 2 acres of field lettuce production while using 90% less water and zero pesticides. The crop is grown indoors, sealed away from pests, weather, and contaminants. The water footprint is roughly five gallons per day for the whole system because nutrient solution recirculates.
How Much Water and Power Does a Hydroponic Container Need in Ontario?
A hydroponic container in Ontario typically needs a 200-amp electrical service and a standard cold-water tap. The two utility hookups that decide whether a site can support a hydroponic container farm are water and power. Neither is unusually demanding, but both need planning.
| Utility | Typical Demand | Site Requirement |
|---|---|---|
| Electrical service | 200 amp / 240V single-phase or 3-phase preferred | Dedicated subpanel inside or beside the container |
| Water supply | 5 to 20 gallons per day recirculating | Standard cold-water hose bib with backflow preventer |
| Wastewater | Periodic reservoir flushes (every 4-8 weeks) | Drain to floor or sanitary sewer |
| Internet | Continuous for cloud dashboard | Wi-Fi or cellular backup |
Most Ontario commercial sites have the 200-amp service available. Rural farms running 100-amp service may need an upgrade through their LDC (local distribution company). Three-phase power is preferred for larger units but not strictly required for single 40ft installations.
Should You Buy a Turnkey System or Do a DIY Container Conversion?
The hydroponic container farm market in Ontario splits into two paths: turnkey systems from established integrators, or DIY conversions where the operator buys the steel and builds the interior themselves (or contracts a hydroponic specialist separately).
Turnkey path
Freight Farms (Boston-based, 38 units in Canada as of mid-2023) sells the Greenery S as a fully integrated unit, available outright or through a monthly leasing program that spreads the cost over the equipment’s working life. Growcer (Ottawa-based Canadian manufacturer) and Just Vertical (Toronto-based) sell similar Canadian-built turnkey systems with installation, training, and ongoing support included. Turnkey installs ship ready to plug in, so what you pay is driven mostly by system complexity, rack count, and the level of automation built in.
DIY conversion path
The DIY path makes sense for a basic conversion if the operator already has hydroponic experience, technical skill, and time to design the rack layout, source LEDs, size the HVAC, run the electrical, and integrate climate control. The container shell itself is a fresh one-trip 40ft high cube from Van Blanc, and as our breakdown of 40ft container costs shows, it is the smallest line item in the build. The rest is system components and labour, which is where most of the budget actually goes. Many serious growers split the difference: buy the shell from Van Blanc, contract the interior build with a regional hydroponic integrator (often a former greenhouse manager or grow-room consultant). See our container modification options if you need basic insulation or electrical work done before the integrator arrives.
Christian LeBlanc, second-generation operator: “Every couple of weeks somebody calls about a hydroponic build. We supply the box, they supply the system. What we tell them is the same thing: don’t cheap out on the shell. A WWT bin with rust pinholes and a soft floor will fight every install step. A one-trip 40ft HC saves you four days of prep on the system side. The integrator on the other end will thank you.”
Who Are the Ontario and Canadian Hydroponic Container Players?
The established hydroponic container players in Ontario and Canada include Growcer, Just Vertical, ZipGrow, and Freight Farms, each with a slightly different angle. If you are designing a hydroponic container farm in Ontario, knowing them helps.
- Growcer (Ottawa): Canadian-built modular hydroponic farms designed for cold-climate operation and remote community food access. Their installs run from Iqaluit to remote First Nations communities to urban Toronto retail-back-of-house operations.
- Just Vertical Commercial (Toronto): Designs, builds, and supports modular container farms at any scale. Toronto headquarters and manufacturing facility.
- ZipGrow (Cornwall, ON): Vertical farming system specialist. Their ZipPod is a hydroponic shipping container product that compacts 2 to 4 acres of farmland equivalent into a 3,800 cubic foot footprint.
- Freight Farms (Boston): The Greenery S is the market-leading hydroponic container farm globally. 600+ units sold across 41 countries.
- Rooms2Grow (Southern Ontario): Custom hydroponic container builds for Ontario growers.
Van Blanc sits upstream of all of them. We supply the 40ft HC one-trip containers, deliver across Ontario in 1-3 days from our 4 Brantford yards, and stay out of the system-design side where the specialists earn their fee. If you are building with one of the integrators above, ask them whether they need you to source the shell separately. Many of them prefer it that way because shell sourcing is freight-and-supply work, not their core business.
How Do You Prepare a Site for a Hydroponic Container Delivery?
You prepare a site for a hydroponic container delivery with a level gravel or concrete pad, power and water within reach, and a clear tilt-deck approach. The hydroponic container farm sits at a fixed location for years. Site prep matters more than for storage containers because once the system is installed, moving the bin is a major undertaking.
Hydroponic Container Site Checklist
- Level pad: Compacted gravel minimum 4″ thick, level within 1″ over the 40ft run. Concrete slab preferred for permanent installs. The system relies on level water flow.
- Power proximity: Subpanel within 50 ft of the container with 200 amp service available. Run conduit before delivery if possible.
- Water access: Cold water tap within reach. Backflow preventer required because nutrient solution will be in the supply circuit.
- Drainage: Gentle grade away from the container pad to handle reservoir flush events.
- Sun exposure: Less important than for traditional growing, but partial shade helps reduce HVAC summer load.
- Truck access: Tilt-deck delivery requires roughly 70 ft of straight approach. Confirm gate widths and overhead clearance.
- Snow load: Ontario site needs to handle 60-100 cm seasonal snow accumulation around the unit. Plan snow removal access.
Van Blanc delivers across Ontario in 1-3 days from our 4 Brantford yards. The bin arrives on a tilt-deck trailer, the driver places it on the prepared pad, and the install team picks up from there. Every quote comes with a real lead time, not a hopeful one. For hydroponic builds we recommend coordinating delivery with the system integrator so the LED, HVAC, and electrical install can start the same week.
What Do the Economics of a Hydroponic Container Farm Look Like?
The economics of a hydroponic container farm in Ontario are modest and depend entirely on selling every pound harvested. Hydroponic container farming sounds glamorous in pitch decks. The operational reality in Ontario is more sober. A working farm needs steady demand from local buyers (chefs, grocers, food banks, community supported agriculture members), tight operational discipline, and the willingness to harvest, pack, and deliver weekly.
Ontario Buyer Demand: Who Actually Pays Premium for Indoor-Grown Greens
Toronto and Ottawa restaurants pay per pound for premium basil and specialty lettuce mixes. Independent grocers and farmers’ markets pay per pound for clamshell-packed mixed greens. Cannabis operators (in Norfolk County, Tillsonburg, and the Niagara region) sometimes run a hydroponic container as a sister operation for staff-fed leafy greens or as a diversification play. Six Nations of the Grand River and similar community-food initiatives use container farms for food sovereignty programs where the metric is not revenue but consistent local produce access.
Realistic revenue from a single 40ft HC hydroponic farm in Ontario:
- Restaurant supply (premium): roughly 200 lb/week sold across about 50 weeks, at the highest per-pound rate, because chefs pay a premium for specialty basil and lettuce mixes
- Mixed grocery and farmers’ market (standard): roughly 250 lb/week across about 50 weeks at a lower per-pound rate, trading margin for higher volume and steadier turnover
- Operating cost (power, water, nutrients, labour, depreciation): the single largest annual line item, scaling mainly with electricity rates, labour hours, and how hard the unit is pushed
The net profit on a well-run single-container hydroponic farm in Ontario is modest once operating costs come out of gross revenue, and it lives or dies on how reliably the operator can sell every pound harvested. That is not a passive income stream. It is a full-time small business with the equivalent of one operator working roughly 30 to 40 hours weekly between seed-to-harvest cycles, packaging, sales, delivery, and equipment maintenance.
How Do You Choose the Right Container Shell From Van Blanc?
You choose the right container shell from Van Blanc by matching size, grade, and door layout to the hydroponic fit-out. For a hydroponic build, the shell specifications matter more than for almost any other use case. Here is what we recommend from Van Blanc’s catalogue:
| Spec | Recommendation | Why |
|---|---|---|
| Size | 40ft High Cube (HC) | 9’6″ interior height for vertical racks + HVAC clearance |
| Grade | One-Trip | Clean steel, factory paint, no rust pinholes |
| Doors | Standard double doors at one end | Allows easy install access; integrator may add personnel door later |
| Wind rating | Standard ISO 1496-1 spec | Adequate for Ontario site conditions |
| Floor | Marine-grade plywood (factory standard) | Integrator covers with sealed flooring |
Buyers comparing Big Steel Box and PODS often end up at Van Blanc when they want to walk a container before buying. Big Steel Box and PODS are national franchises focused on storage rentals, not hydroponic-grade conversions. We are a real Brantford yard with one-trip stock, family-run since 1995. Drive to our yard at 90 Morton Avenue East, walk the rows, pick the bin that suits the conversion, and we ship it in 1-3 days. You can also see what is currently in the Brantford yard before you make the trip.
Many Norfolk and Niagara growers call Van Blanc after their integrator has already walked them through what an indoor-grow fit-out actually involves. Paul has watched the hydroponic market grow from a curiosity to a serious vertical of Ontario container demand. “The shells we ship for hydro builds now are a real chunk of what we sell,” he says. “Twenty years ago it was zero. Five years ago a few. Now it’s every couple of weeks.”
Frequently Asked Questions
What size container should I buy for a hydroponic farm in Ontario?
A 40ft high cube (HC) one-trip container is the standard. The 9’6″ interior height accommodates vertical NFT or DWC racks plus overhead HVAC and lighting. A 20ft HC works for small-scale microgreens or research builds but limits commercial output to roughly 30% of a 40ft.
How much does a full hydroponic container farm cost in Ontario?
The total depends on which path you take. Turnkey systems from Freight Farms, Growcer, or Just Vertical arrive fully integrated and installed, so they sit at the top of the range. A DIY build where you buy the 40ft HC shell from Van Blanc and contract the interior install separately lands well below a turnkey unit, with the final number driven by system complexity, automation level, and how much of the work you do yourself. The shell is the smallest part of the budget; the LED, HVAC, racking, and labour are what move the cost.
How many plants can a 40ft hydroponic shipping container hold?
Between 4,000 and 8,000 plants at any given moment, depending on crop choice and rack density. Lettuce-heavy operations run on the higher end; herb and microgreens operations vary based on harvest cycle. Annual output ranges from 2 to 6 tons of leafy greens.
What crops grow best in a hydroponic container in Ontario?
Lettuce (butterhead, romaine, leaf), basil, arugula, kale, swiss chard, cilantro, parsley, mint, and edible flowers cover roughly 90% of profitable container farm output. Microgreens (pea shoots, sunflower, radish) add a high-margin specialty layer. Fruiting crops are technically possible but less profitable per square foot.
How much electricity does a hydroponic container farm use?
Roughly 200 amps at 240V single-phase, drawing 12 to 18 kW for LEDs plus 3 to 6 kW for HVAC and pumps. Monthly electricity costs in Ontario swing with your rate plan, time-of-use pricing, and how efficiently the unit is run, since lighting is by far the biggest draw.
Can I run a hydroponic shipping container farm year-round in an Ontario winter?
Yes. The sealed steel envelope plus insulation plus HVAC plus LED heat load keeps the interior at a steady 20-24°C even at -30°C outside. The farms designed by Growcer specifically target remote cold-climate operation in northern Canada. Ontario winters are well within operating range.
Who supplies hydroponic shipping containers in Ontario?
For the steel shell, Van Blanc supplies one-trip 40ft HC containers from our Brantford yard with 1-3 day delivery across Ontario. For the full turnkey system, Growcer (Ottawa), Just Vertical (Toronto), ZipGrow (Cornwall), and Freight Farms (US, sold in Canada) are the established integrators. Most growers buy the shell from us and have their chosen integrator build out the interior, since shell sourcing is freight-and-supply work rather than system design.
How long does a hydroponic container farm last?
The steel shell, when one-trip grade, will outlast the hydroponic system inside. Container life is 25+ years. The hydroponic system components (LEDs, HVAC, pumps, sensors) follow normal commercial-equipment life cycles: LEDs 10-15 years, HVAC 8-12 years, pumps 5-10 years. Most operators plan a major refresh at year 10.
Can Van Blanc deliver a 40ft hydroponic container shell across Ontario?
Yes. Van Blanc delivers in 1-3 days to every region across Ontario from our 4 Brantford yards. Every quote comes with a real lead time, not a hopeful one. The bin arrives on a tilt-deck trailer; placement on a prepared level pad takes the driver roughly 30 minutes.
Sources
- International Organization for Standardization. (2022). ISO 6346:2022, Freight containers, Coding, identification and marking. iso.org/standard/82754.html
- Freight Farms. (2024). The Greenery S Controlled Hydroponic Container Specifications. freightfarms.com/greenery-s
- The Growcer. (2024). Comparing hydroponic setups: DWC vs. NFT. thegrowcer.ca
- Northern Ontario Business. (2023). Container farms enable indoor growing. northernontariobusiness.com
- Business Development Bank of Canada. (2023). Growcer Modular Vertical Farms case study. bdc.ca
Reach Van Blanc in Brantford
We have been supplying shipping containers across Ontario since 1995. Our warehouse is at 90 Morton Avenue E in Brantford, and we deliver right across the province on a cash-on-delivery basis. No surprise fees, no chase-the-paperwork.
Van Blanc Ent. Inc. 90 Morton Ave E Unit 1B, Brantford, ON N3R 7J7 +1 888-509-6658
Planning a hydroponic build in Ontario? Visit the Brantford yard, walk the one-trip 40ft HC inventory, and pick the shell that matches your integrator’s hydroponic-fit-out plan. We ship in 1-3 days, every quote comes with a real lead time, not a hopeful one.
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