PVC Strip Curtains for Containers: When You Need Airflow Without Open Doors

It's a busy delivery day and the container doors have been swung open since 7am. Pallets go in and out every few minutes, so closing them between drops isn't realistic. By mid-afternoon the floor is gritty, a wasp has found the stock, and in a reefer the unit has been fighting warm air all day. Opening the doors made the job quicker, but it left the inside exposed to whatever the weather and the yard throw at it.

PVC strip curtains for containers are the middle ground. Overlapping flexible strips hang across the doorway, part easily as people or trolleys pass through, then fall back into place. The doors stay open for access, while the curtain cuts down draughts, dust, insects and lost cold air.

This guide covers when a container strip curtain is worth fitting, which PVC grade to choose, how to size and mount it, and the safety points that matter on a working site.

How PVC Strip Curtains Work

A strip curtain is a row of vertical PVC strips hung from a rail across an opening. Each strip overlaps the next, so when nobody is passing through, the curtain forms a near-continuous screen. Push through it and the strips separate around you, then swing back once you're through.

How well it performs depends on three things: the PVC grade, the thickness of the strips and how much they overlap. A well-specified curtain noticeably reduces air exchange and airborne dust. It isn't airtight, though, and it offers no security. Think of it as an environmental barrier for working hours, not a replacement for your container doors.

When to Fit a Strip Curtain to a Shipping Container

Busy Storage Containers

Containers used for daily deliveries, stock picking or site stores see constant door traffic. A strip curtain lets the doors stay open while keeping out wind, rain spray, dust and insects. That's useful for builders' merchants, landscapers, event suppliers and anyone running a container as a working store rather than occasional storage.

Refrigerated and Static Cold Storage Containers

This is where strip curtains earn their keep. Every time a reefer door opens, cold air spills out of the bottom of the opening and warm, humid air flows in at the top. On static cold stores at restaurants, farms, events and food production sites, the doors may be opened dozens of times a day.

A curtain across the doorway helps by:

• Reducing cold air loss during loading and picking.

• Smoothing out temperature swings so the unit isn't constantly recovering.

• Limiting moisture getting in, which means less frost on the evaporator and fewer defrost cycles.

• Reducing strain on the door seals, because the doors spend less time being swung open and shut.

For cold use, the strips must be a low-temperature grade (see below). A strip curtain also can't make up for a worn door gasket or a faulty unit. If the box is struggling to hold temperature with the doors shut, our guide to refrigerated container parts covers what to check.

Container Workshops

Container workshops need easy access but suffer badly from draughts and blown-in dust. A curtain across the doorway keeps the space warmer in winter and cleaner all year. Strip curtains can also be hung inside to separate a work area from a storage area, often alongside a divider wall.

Where there's welding, fumes or fuel-powered equipment, a curtain must never stand in for proper ventilation. Fumes need somewhere to go, so keep vents clear and check the workshop's ventilation separately. Our guide to venting a shipping container explains the options.

Choosing the Right PVC Strip Curtain

Pick the Right PVC Grade

Clear strips are the default for most container doorways because people can see who or what is coming the other way. Coloured or opaque strips are best kept for privacy screens or internal divisions away from traffic routes.

Get the Strip Size and Overlap Right

Strip width and thickness should match the traffic. As a general guide, around 200mm by 2mm strips suit pedestrian doorways, while wider, thicker strips of around 300mm by 3mm stand up better to pallet trucks and trolleys. Thicker strips last longer but take more effort to push through, so don't over-specify a curtain that people walk through all day.

Overlap matters just as much. A bigger overlap seals better but feels heavier. For external doorways and cold stores, a generous overlap, often around 50%, keeps wind and cold loss down. Internal divisions can usually get by with less.

Measure the Opening

Measure the full height and width of the door opening, then decide where the rail will go. On most containers that means across the inside of the door header or on a separate subframe. Allow for the rail itself and make sure the bottom of the strips clears the floor slightly so they don't drag or catch.

Plan the Fixing

The rail needs a solid fixing that can take the weight of the strips. If you drill into the container to fit it, treat any bare steel and seal the holes so water can't track in. A container sealant is ideal for this. Choose a rail system that lets you swap out single strips, because they will wear.

PVC Strip Curtains vs Container Doors

For most sites, the answer is both. The curtain does the work during the day, then the doors are closed and locked at night. Keep the door seals in good condition with replacement container door gaskets, and the setup works well all year.

Practical rule: the strip curtain is for when you're there; the doors and padlock are for when you're not.

Safety Points to Check

• Visibility. Use clear strips on any route where people and pallet trucks meet, and keep them clean so they stay see-through.

• Escape routes. A curtain must never obstruct an emergency exit or make it harder to get out quickly.

• Lighting. Strips cut some daylight, so make sure the inside is properly lit. Our container lighting range includes motion sensor lights that suit busy doorways.

• Doors. Fitting a curtain is also a good reason to keep the main doors fully open and secured while working, so they can't swing shut on someone inside.

Maintaining a Container Strip Curtain

PVC strips are a consumable part and will wear with use. Clean them regularly with a cleaner suited to PVC, avoiding harsh solvents that can cloud or weaken the plastic. Check for tears, heavy scratching, stretched or warped strips and loose fixings on the rail. Replace damaged strips promptly, as one missing strip leaves a gap that undoes much of the benefit.

Common Mistakes to Avoid

• Using standard PVC in a freezer. It goes stiff and brittle in the cold and can crack.

• Too little overlap. Gaps between strips let wind and cold air straight through.

• Strips that are too heavy for foot traffic. People end up hooking them aside, which defeats the point.

• Coloured strips on a traffic route. If you can't see through it, you can't see what's coming.

• Relying on the curtain for ventilation or security. It does neither job.

Frequently Asked Questions

Can you fit a PVC strip curtain to a shipping container?

Yes. A strip curtain can be hung across the inside of the door opening on a rail fixed to the door header or a separate frame. It's a common upgrade for storage containers, reefers and container workshops.

Do strip curtains work on refrigerated containers?

Yes, especially on static cold stores where the doors are opened often. Use low-temperature PVC that stays flexible in the cold, and keep the door seals and refrigeration unit properly maintained.

What overlap should a strip curtain have?

It depends on the opening. External doorways and cold stores benefit from a generous overlap, often around 50%, while internal partitions can usually use less.

Are PVC strip curtains secure?

No. They control draughts, dust, insects and temperature loss, but they don't stop anyone getting in. Always close and lock the container doors when the site is unattended.

Make Your Container Work Harder With Quickfit Container Accessories

A strip curtain is a simple way to keep a busy container cleaner, warmer or colder without slowing your team down. Pair it with good door seals, proper ventilation and decent lighting and you'll have a container that works well all year round.

Explore our ventilation and condensation control products, door gaskets and container lighting, or speak to the team about your container setup. Call 020 7118 8373 or email sales@qfca.co.uk.

Fighting damp as well as draughts? Read our guide to condensation control.