Quick Answer: Per AMPP/NACE Corrosion Standards. Shipping container condensation forms when warm, moist air inside touches cold steel walls at or below the dew point. A temperature swing of just 3 to 5 degrees Celsius is enough to trigger container sweat. Ventilation, insulation, vapor barriers, and desiccants stop it. In Ontario, spring and fall freeze-thaw cycles cause the worst episodes. Real Brantford yards, real reviews (4.9 / 124+), real 1-3 day delivery. Family-operated since 1995.
In This Guide
- Why shipping containers sweat (the physics)
- Why Ontario climate makes condensation worse
- Real damage condensation causes to stored goods
- Ventilation: passive vents, whirlybirds, louvre vents
- Insulation: spray foam, batt, panels, R-values
- Vapor barriers and where they fit
- Desiccants, dehumidifiers, and moisture absorbers
- Container placement: elevation, drainage, orientation
- The 1.125 inch plywood floor moisture problem
- A six-step Brantford-yard condensation fix
- FAQs
Reading time: about 14 minutes.
Why does a shipping container sweat inside?
A shipping container sweats when warm, moist air inside meets steel walls and ceiling that have cooled to the dew point. Water vapour turns back into liquid on the cold metal. In Ontario, a temperature swing of just 3 to 5 degrees Celsius between the interior air and the steel is enough to start the beading. The steel is fine. The conditions inside are what you change.
Walk into a 40-foot dry van on a damp October morning in Brantford and you can see beads of water hanging from the ceiling like a cave. People call it container sweat, container rain, or just that drip problem. Whatever you call it, the physics is the same. Warm air holds water vapor. Cold air holds less. When warm, moist air touches a surface at or below the dew point of that air, the water comes back out as liquid. The steel walls of a dry storage container are excellent at cooling overnight and warming through the day, which makes them a perfect condensation factory. Buyers comparing a steel container for their own yard should weigh how that same physics will play out on their site before they decide on a size.
A temperature differential of about 3 to 5 degrees Celsius between the interior air and the steel surface is enough to start beading. In Ontario, that swing happens daily for most of spring, fall, and shoulder-season winter. The container is not broken. The physics is doing exactly what physics does. The fix is changing the conditions, not the steel.
The three drivers of container condensation
- Temperature differential. Warm interior, cold walls. The steel cools faster than the air. Beading begins.
- Trapped humidity. Goods stored damp, lumber drying out, even people loading the container at dawn dump moisture in.
- No air movement. Without ventilation, the saturated air has nowhere to go. It cycles between condensing on the ceiling and re-evaporating into the box.
Why is container condensation worse in Ontario?
Container condensation in Ontario is worse than in most regions because the climate puts the box through wide temperature swings on a regular schedule.
Winter brings -20 to -25 Celsius nights followed by midday sun that warms the south-facing wall to +5. Spring brings warm humid air masses that meet steel still chilled from a long winter. Fall brings warm afternoons over containers that cooled all night under clear skies. Each transition is a condensation event.
Lake Ontario, Lake Erie, and Lake Huron add humidity that inland climates do not deal with. A container parked in the Niagara fruit belt, on Norfolk farmland, in cottage country near Bracebridge, or anywhere within an hour of a Great Lake is sitting in air with elevated absolute humidity nine months of the year. That moisture finds the cold steel.
Brantford-yard observation
Christian on the Brantford yard pattern: “Every April we get the same call from buyers who bought in fall. Their stuff is wet, the floor smells musty, they think there is a leak in the roof. There usually is not. The container was sealed up tight all winter, the contents released moisture, and the steel did the rest. We talk through ventilation and insulation. Sometimes we add a vent kit. Most of the time the problem goes away by the next season.”
What condensation actually damages
Container condensation damages stored goods through three mechanisms: porous materials absorb the moisture, bare metal corrodes, and organic material grows mold. Many buyers shrug at the idea of a few drops on the ceiling. The damage shows up months later when the contents come out. The list of real-world losses Van Blanc has watched over 30 years is long.
| Stored item | Condensation damage | Time to visible damage |
|---|---|---|
| Cardboard boxes, paper records | Sag, mildew, ink bleed | 2 to 6 weeks |
| Lumber, plywood, MDF | Swelling, warp, mold colonies | 4 to 12 weeks |
| Power tools, hand tools | Surface rust on bare steel parts | 2 to 4 weeks |
| Upholstered furniture | Musty smell, mold on fabric backs | 6 to 12 weeks |
| Electronics in original boxes | Cardboard collapse, capacitor corrosion | 3 to 6 months |
| Stored vehicles, motorcycles | Chrome and bare-metal rust, brake-disc surface rust | 4 to 8 weeks |
| Farm equipment, machinery | Bearing rust, hydraulic seal degradation | 3 to 6 months |
| Documents, books, photos | Foxing, page swelling, permanent damage | 4 to 10 weeks |
| Drywall, gypsum board | Total loss, structural disintegration | 2 to 6 weeks |
The pattern is consistent. Anything porous absorbs moisture. Anything bare metal corrodes. Anything organic grows mold. A container with persistent condensation issues will damage stored goods at a much higher rate than the same goods left in an unheated garage, because the container creates a sealed humidity chamber the garage never does.
What is the cheapest way to stop container condensation?
The cheapest way to stop container condensation is ventilation. Most container condensation problems start with poor airflow. The factory container has two small vents above the cargo doors. They are sized for ocean shipping with cargo, not for stationary storage in an Ontario climate. The fix is adding airflow.
The most airflow comes factory-built. Our 14-vent gunmetal grey 20ft moves far more air than a standard box, the cleanest way to head off container rain before it starts.
Proper passive ventilation places intake vents low on one end of the container and exhaust vents high on the opposite end. Air rises naturally as it warms. This stack-effect draws fresh outside air through the box and carries moisture out. No fans, no power, no maintenance. If you are weighing whether passive airflow is enough or you need something powered, our breakdown of moving air through a container with and without a motor walks through the trade-off. When Van Blanc cuts vents into a box during a conversion done at our Brantford yard, the quote moves with the vent size, how many pairs you add, and the labour to weatherproof each opening. The same crew handles the rest of our at-yard build work, from man doors to roll-up doors, before the container is delivered.
Ventilation options in order of cost
| Vent type | How it works | Relative cost and what drives it | Best for |
|---|---|---|---|
| Factory cargo-door vents | Passive, small openings near top of door | Already on the box, no added cost | Light storage in dry climates (not enough alone for Ontario) |
| Louvre vents (4×4 or 6×6) | Passive, screened, weatherproof | Lowest add-on, priced per pair by vent size and install labour | General storage, contractor tools, agricultural feed |
| Whirlybird (turbine) vents | Wind-driven roof exhaust | Low to moderate, priced per unit plus roof flashing | Containers with high interior heat (workshops, partial occupancy) |
| Powered exhaust fans | Electric, controlled by humidistat | Higher, driven by wiring, humidistat, and ESA inspection | Climate-controlled storage, mixed-use conversions, ESA-required |
| Solar attic fans | Solar-powered exhaust | Moderate, driven by panel size and mounting hardware | Off-grid sites, cottage storage |
Money-saving ventilation tip
For most Ontario storage uses, two pairs of well-placed louvre vents will eliminate 80 percent of condensation problems for a fraction of what a powered system costs. Spending more makes sense only if you are storing high-value goods, doing occupied conversions, or running the container as a workshop. Buyers who jump straight to powered fans for basic storage are overspending.
What insulation stops container condensation best?
Ventilation alone is enough for many storage uses, but the moment you want to keep contents within a temperature band (workshop, occupied office, refrigerated cold storage, climate-sensitive inventory), you need insulation. Our deeper write-up on lining a container against Ontario winters covers the full range of options. For condensation specifically, the goal is keeping the interior steel surface above the dew point of the interior air, and our broader overview of insulating a container in this province sets out how each material gets you there. Once the steel sits above the dew point, water cannot condense on it. If you want to put real numbers to that threshold, you can work out the dew point for your own storage conditions before you choose an approach.
Insulation types ranked by condensation performance
| Insulation | R-value per inch | Vapor barrier needed? | Relative installed cost | Condensation rating |
|---|---|---|---|---|
| Closed-cell spray foam | R-6 to R-7 | No, the foam is the barrier | Highest, but no separate barrier needed | Excellent |
| Open-cell spray foam | R-3.5 to R-4 | Yes, separate vapor barrier | High, plus the cost of the barrier | Good with vapor barrier |
| Rigid foam boards (XPS, polyiso) | R-5 to R-6.5 | Joints must be taped | Moderate, more labour to cut and tape | Good if taped |
| Mineral wool batt + vapor barrier | R-3.5 to R-4.2 | Yes, essential | Lower material cost, framing and barrier add up | Moderate |
| Fiberglass batt + vapor barrier | R-3.2 to R-3.8 | Yes, essential | Lowest material cost, framing and barrier add up | Poor (absorbs moisture if barrier fails) |
| Reflective foil bubble wrap alone | R-1 to R-2 | Functions as one | Cheapest, but rarely sufficient on its own | Inadequate alone in Ontario |
Closed-cell spray foam at 2 inches is the gold standard for Ontario shipping container condensation control. It hits R-12 to R-14, seals every seam and corner, and acts as its own vapor barrier. There is no missed seam, no taped joint that fails after a thaw cycle, no batt that sags. The downside is cost. Spraying a 40-foot container is the most expensive option, and the quote climbs with the foam thickness you specify.
Rigid foam boards are the cost-effective compromise. Two-inch XPS at R-10 per panel, cut to fit between welded furring strips, taped at every joint with sheathing tape, and finished with a continuous polyethylene vapor barrier on the warm side. This approach costs less than a full spray-foam job on a 40-foot container and is what most Ontario tradespeople will install for a workshop or non-occupied climate-control build.
Vapor barriers: where they matter and where they do not
A vapor barrier is a continuous membrane that stops water vapor from diffusing through the wall assembly. Standard polyethylene at 6 mil is the Canadian default. The rule is simple. If you are using any insulation that is permeable to vapor (mineral wool, fiberglass, open-cell foam), you need a continuous vapor barrier on the warm side of the assembly. If you are using closed-cell spray foam, the foam is the barrier.
Where vapor barriers go wrong in container builds is at the seams. Steel containers have corrugated walls that create vertical channels every few inches. Trying to wrap a continuous 6 mil sheet through those channels with no air gap is difficult and most installations fail at the corrugation transitions. This is one reason the spray foam premium pays back over time. The labor cost of getting a vapor barrier right on corrugated steel is meaningful.
The condensation point of failure most Ontario builds miss
The ceiling. Steel ceilings cool faster than walls because warm interior air rises against them and the roof has the most direct heat exchange with the outside sky on a clear night. A perfectly insulated wall assembly will still drip from a poorly insulated ceiling. If you budget compromises, do not compromise on the ceiling.
Desiccants, dehumidifiers, and moisture absorbers
Desiccants are the third tier of condensation control. They do not stop the temperature differential and they do not move air. They lower the absolute humidity inside the container, which raises the threshold at which condensation can form.
Desiccant options for Ontario storage
- Calcium chloride hanging buckets (DampRid, Eva-Dry, Big Box generics). The cheapest option per unit. Each absorbs roughly 16 ounces of water before saturation. For a 40-foot container, plan on 4 to 6 buckets. Replace every 2 to 4 months in active use.
- Silica gel desiccant bags. Industrial-grade hanging bags cost more per unit than calcium chloride but last 6 to 12 months. Often re-charged in an oven.
- Clay-based desiccants (kraft paper bags). Cheap and widely used by shippers in transit. Limited capacity for stationary Ontario storage.
- Electric dehumidifiers. The most expensive desiccant route, and worth it for a quality unit. Pulls 20 to 50 pints per day. Requires power and a drain or empty cycle. Best for occupied spaces or high-value inventory.
- Bulk loose desiccant clay (poured in trays). Industrial application, used for high-value pharmaceutical or electronics storage. Overkill for residential or contractor use.
Honest assessment
Desiccants alone will not solve a real condensation problem in an uninsulated, unventilated Ontario container. They are a finishing tool, not a primary fix. Add them on top of ventilation and insulation, not instead of those two. Buyers who buy a stack of DampRid buckets and call it done in November will find soaked contents in April.
Container placement: elevation, drainage, and orientation
Where you put the container affects how much moisture it sees. Site setup matters as much as the modifications you make to the box itself. How you set the box on a level, drained pad is covered in depth on the structural side. For condensation specifically, three site decisions matter.
Elevation. A container set directly on damp earth, grass, or compacted soil will wick moisture through the floor permanently. Even when the corner castings are on concrete blocks, if the wood floor sits within an inch of damp ground, it stays damp. Standard Van Blanc practice is setting the container on four to six concrete blocks per side, giving 8 to 12 inches of air gap. Buyers who skip this step have wetter containers than buyers who do not.
Drainage. The pad under the container should slope a half percent away from the box. If water pools around the base after a heavy rain, that water evaporates upward into the floor and walls. A crushed gravel pad with a slight crown solves this and keeps the base dry. Skipping the gravel pad to save time leads to more condensation damage over the years.
Orientation. Where physically possible, orient the container with its long wall facing south or east. Morning and midday sun warms the steel before the interior reaches dew point, reducing condensation events. North-facing walls stay cold longer and condense more. This is a small effect but it is free.
The 1.125 inch plywood floor moisture problem
Shipping containers ship from the factory with a 1.125 inch thick marine-grade plywood floor, often treated with a wood preservative. This floor is engineered for loading freight inside an ocean container, not for sealing moisture out of a stationary Ontario box. It absorbs water, holds it, and releases it slowly. In stored container conditions where condensation drips from the ceiling and pools at the corners, the floor becomes a moisture reservoir.
Three options exist for managing the plywood floor in condensation-prone use.
- Seal and leave. Apply two coats of a marine epoxy or oil-based floor sealer. The sealer reduces moisture absorption by 60 to 80 percent. This is the cheapest route: low material cost for a 40-footer plus a weekend of labor.
- Overlay with rubber or vinyl. Industrial rubber mat or sheet vinyl over the existing floor adds a moisture barrier and a wear surface. A mid-range option, priced by the material you choose and the area covered.
- Replace with new flooring. Pull the original plywood, install closed-cell foam between the cross-members, lay treated subfloor, finish with engineered floor of choice. The most expensive of the three on a 40-footer. Used in occupied conversions and serious workshops.
Christian LeBlanc, second-generation operator: “Most buyers do not realize the factory floor is the wettest part of the container. We tell every condensation-worried customer the same thing: ventilate the air, insulate the ceiling, then deal with the floor. Skip the floor sealing and your stuff at floor level stays damp even after the dripping stops.”
A six-step Brantford-yard condensation fix
Christian walks through the exact sequence Van Blanc recommends for an Ontario buyer with a working container that has started sweating.
- Empty and dry. Move contents out for 48 hours of dry weather. Sweep the floor clean. Let the box air out with both doors open during dry afternoons.
- Install vents. Two pairs of louvre vents minimum: one pair low on the front, one pair high on the back, or one pair on each end at staggered heights. This single change resolves most light-storage condensation.
- Elevate the box. Confirm the container is on at least 6 to 8 inch concrete blocks with airflow underneath. Add blocks if needed.
- Seal the floor. Two coats of marine epoxy or oil-based deck stain. Wait the cure time. This addresses the floor reservoir problem.
- Add insulation if needed. For storage where temperature swing exceeds 15 Celsius daily (anywhere in Ontario), add at least 2 inches of closed-cell spray foam to the ceiling. The walls can wait if budget is tight. The ceiling is non-negotiable for serious condensation.
- Add desiccants as finishing. 4 to 6 hanging calcium chloride units, replaced every 2 to 4 months in active storage. These deal with residual humidity from contents themselves.
What this sequence costs depends on container size and how much DIY versus contracted labor goes into it. It resolves 95 percent of Ontario condensation cases.
What about winter? Cold-weather specifics
Winter condensation in Ontario containers has a different mechanism than spring or fall. In peak winter (December through February), the steel is cold enough that interior air rarely reaches dew point against the walls. The condensation problem is suppressed temporarily. The risk shifts to two specific failure modes.
Thawing during a January warmup. A brief midwinter thaw raises interior air temperature, releases stored moisture from contents and floor, then refreezes when temperatures drop. The condensation appears as frost on the inside of the ceiling rather than liquid water. When the next thaw arrives, it melts and drips.
Loading goods that release moisture. Bringing warm, damp contents into a cold container during winter creates an immediate condensation event as the goods cool and the air saturates. This is why we recommend loading in dry weather and pre-cooling contents to outside temperature where possible.
For year-round occupied uses (workshops, offices), the answer is straightforward: insulate properly, add a small heater on a frost thermostat, and run a low-output dehumidifier in summer. The container HVAC guide covers heating and cooling specifically.
Refrigerated containers and condensation
Refrigerated containers (reefers) handle condensation differently than dry containers. The active refrigeration unit maintains a tight humidity band as part of its cooling cycle. A working reefer running at -25 to +5 Celsius will not develop the kind of free-water condensation a dry container develops. The more on cold-storage containers covers the specifics.
Non-operating reefer shells used as premium insulated storage do face condensation if the unit is unpowered. The 4 to 5 inches of polyurethane foam in the walls slow the temperature differential but do not eliminate it. Adding ventilation and desiccants to a non-op reefer storage build is still required.
What 30 years of Brantford deliveries has taught us
Paul started Van Blanc in 1995 after four decades in Asian trade. The pattern of Ontario container condensation complaints has been consistent across three decades. Christian, his son, has been working the yard with him for the last four years, taking the same calls.
“The customers who never call us about condensation,” Christian says, “are the ones who installed two pairs of louvre vents the week the container arrived. The customers who call back the next April with a wet container are the ones who said vents could wait. We tell every buyer the same thing at the yard: ventilate now, insulate later, do not skip the floor. The buyers who follow that order do not have problems. The ones who skip ventilation and add desiccants instead always come back.”
Worth the drive to Brantford
Buyers from across Ontario regularly drive to our Brantford yard at 90 Morton Avenue East to walk the rows before they pay. You can see how factory vents are positioned, what a fresh louvre vent looks like installed, what closed-cell spray foam coverage actually looks like on a sample wall. We have been delivering containers since 1995. The condensation question comes up on almost every yard visit, and we walk through it the same way every time.
Condensation control cost summary
| Approach | Container size | Relative investment | Effectiveness |
|---|---|---|---|
| Vents only (2 pairs louvre) | 20ft or 40ft | Lowest, the entry-level fix | Resolves 70-80% of light storage cases |
| Vents + floor seal | 20ft or 40ft | Low, vents plus a weekend of sealing | Resolves 80-90% of general storage |
| Vents + ceiling spray foam | 20ft | Moderate, scaled to the smaller box | Resolves 90-95% of all uses |
| Vents + ceiling spray foam | 40ft | Moderate to high, more area to spray | Resolves 90-95% of all uses |
| Full insulation, vapor barrier, vents, dehumidifier | 40ft | Highest, a full climate-control build | Occupied space climate control, 99%+ |
Most Van Blanc condensation customers land in the vents-plus-floor-seal or vents-plus-ceiling-foam tiers. The full climate-control build only makes sense for occupied spaces or extremely temperature-sensitive inventory.
Go Deeper: Detailed Topic Guides
For more depth on specific aspects of this topic, see our spoke articles:
More from this cluster
Deeper reads we’ve added since the original guide:
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Frequently asked questions
Why does my shipping container sweat or drip?
Warm, humid interior air contacts cold steel walls and ceiling. At or below the dew point, water vapor condenses to liquid. A temperature differential as small as 3 to 5 degrees Celsius between interior air and steel is enough to start beading. In Ontario, daily temperature swings during spring and fall trigger condensation events almost every shoulder-season day.
What is the cheapest way to stop container condensation?
Two pairs of louvre vents installed at staggered heights, low on one end and high on the other. This creates stack-effect passive ventilation that carries moisture out of the box. It is the lowest-cost fix in Ontario, priced per pair by vent size and install labour. This single fix resolves the majority of light-storage condensation cases.
Do I need to insulate my container to stop condensation in Ontario?
Not always. Ventilation alone resolves most general storage cases. Insulation becomes necessary when you need to maintain a temperature band inside (workshop, office, climate-sensitive inventory) or when you cannot get enough airflow because the container is sited in a low-wind location. Ceiling insulation is the highest priority if you do insulate.
What is the best insulation for stopping container condensation?
Closed-cell spray foam at 2 inches minimum is the standard answer. It hits R-12 to R-14, acts as its own vapor barrier, and seals every seam without taped joints that can fail. It is priced per square foot installed in Ontario, so a fully sprayed 40-footer is the most expensive insulation route, with the quote rising as you add foam thickness.
Will silica gel or DampRid stop condensation in my container?
By themselves, no. Desiccants reduce absolute humidity but do not address the temperature differential or air movement. They work as a finishing tool on top of ventilation and insulation. Calcium chloride hanging units (DampRid) are inexpensive, last 2 to 4 months in active storage, and a 40-foot container typically needs 4 to 6 units.
How much temperature difference causes container sweat?
A differential of about 3 to 5 degrees Celsius between the interior air and the steel surface is enough to trigger beading. In Ontario, this threshold is exceeded on most days during spring (March-May), fall (September-November), and any thaw cycle in winter. Summer condensation happens overnight when the steel cools faster than humid air.
Can I install vents myself or do I need a contractor?
Louvre vents can be installed with basic metal-cutting tools (angle grinder or hole saw with bi-metal blade), a drill, and self-tapping screws. Most handy buyers do it themselves for the material cost of the vents alone, paying per pair. A contractor-installed price runs higher because it reflects labor, weatherproofing, and warranty on the seal. For powered fans or whirlybirds, an installer is typically the better call.
Does a vapor barrier matter inside a shipping container?
Yes, when using vapor-permeable insulation (mineral wool, fiberglass, open-cell foam). The vapor barrier (typically 6 mil polyethylene) goes on the warm side of the assembly. With closed-cell spray foam, the foam itself is the vapor barrier and no separate sheet is needed. Vapor barrier failure at corrugated steel seams is one reason spray foam often outperforms batt-and-poly assemblies in containers.
Why is the ceiling of my container the wettest part?
Warm air rises. Steel ceilings cool fastest because they radiate heat to the sky on clear nights and lose temperature faster than walls. The combination produces the largest temperature differential at the ceiling, where condensation forms first and most heavily. Ceiling insulation is the highest priority in any container condensation build.
Will the wooden floor of my container rot from condensation?
It can. The factory plywood floor is 1.125 inch marine-grade treated for international shipping, not for stationary Ontario storage. It absorbs moisture and holds it. Sealing with two coats of marine epoxy or oil-based deck stain reduces absorption by 60 to 80 percent. Overlay with rubber mat or vinyl adds a moisture barrier. Full floor replacement is the gold standard for occupied or workshop builds.
Does container condensation cause rust on the steel itself?
Yes, over time. Repeated condensation cycles on the interior side of the steel walls and ceiling cause surface rust to develop, particularly where coatings are thin or scratched. The structural steel is thick enough that surface rust takes years to become structural. A well-maintained container can stay structurally sound for 25 to 30 years with proper condensation control. Without it, expect interior surface rust within 5 to 10 years.
Is condensation worse in winter or summer in Ontario?
Spring and fall are the worst seasons because the temperature swing between day and night is largest while humidity remains elevated. Winter condensation is suppressed by persistent cold (the dew point is rarely reached), but thaw cycles create episodes of frost-then-drip. Summer condensation occurs overnight as humid air contacts steel that cooled under clear skies.
Can poor ventilation cause mould in a shipping container?
Yes. Condensation that keeps landing on cargo and the wood floor feeds mould within weeks in a sealed box. The fix is airflow and dry loading: paired vents on opposing walls, pallets off the floor, desiccant where the load arrives damp, and a seasonal check on the door seals. Ventilation costs less than one spoiled load.
Sources
- International Organization for Standardization. (2022). ISO 6346:2022, Freight containers: Coding, identification and marking. iso.org/standard/82754.html
- Government of Canada, Environment and Climate Change Canada. (2025). Canadian Climate Normals 1991-2020: Brantford, Ontario. climate.weather.gc.ca
- Natural Resources Canada. (2024). Keeping the Heat In: Insulation R-Values and Vapour Retarders. natural-resources.canada.ca
- American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). (2024). Handbook of Fundamentals, Chapter 27: Climatic Design Information. ashrae.org
- Discover Containers. (2024). How to Stop Container Condensation: A Complete Guide. discovercontainers.com
Reach Van Blanc in Brantford
We have been supplying shipping containers across Ontario since 1995. Our warehouse is at 90 Morton Avenue East in Brantford, and we deliver right across the province in 1 to 3 days from our four Brantford yards. No surprise fees, no chase-the-paperwork. Every quote comes with a real lead time, not a hopeful one.
Van Blanc Ent. Inc. 90 Morton Ave E Unit 1B, Brantford, ON N3R 7J7. +1 888-509-6658
Visit our yard before you buy. We can show you exactly where vents go on a 20 or 40-foot box, what closed-cell spray foam looks like installed, and walk through your specific condensation concerns before you commit. With 200 plus containers in stock, you pick the bin and we deliver. Most Ontario container yards do not let you choose your unit; we do.
Related Reading
- Insulated Shipping Containers Ontario: Spray Foam, Batt, and Panels
- Container Roof and Waterproofing in Ontario
- Shipping Container Foundation: Site Prep, Blocks, and Pads
- Container HVAC and Climate Control in Ontario
- Shipping Container Modifications Ontario: Full Mods Guide
- Used Shipping Container Buying Guide Ontario