Walk In Coolers Engineered Specifically for Outdoor Use

The operating temperatures of Polar King walk in coolers range from 35°F (0°C) to 55°F (13°C).

Polar King commercial walk in coolers are designed specifically for outdoor applications requiring refrigerated storage. Each cooler unit is custom-built with our patented seamless fiberglass construction and available in both through-wall or freestanding applications.

All Polar King outdoor walk in coolers are delivered fully assembled and are ready to operate on delivery with a simple electrical connection. No on-site assembly or refrigeration work is required because our refrigeration experts have done all the work in advance, within Polar King’s quality-controlled facility. With a 100% seamless fiberglass design, Polar King offers the industry’s only one-piece, outdoor unit. If you’re looking for a walk in refrigerator rental, check out Polar Leasing.

The Polar King Warranty

  • 25-Year Coverage Internal Foam Structure
  • 12-Year Coverage Walk In Structure
  • 5-Year Extended Compressor Coverage
  • 1-Year Miscellaneous Parts and Accessories
  • 1-Year Refrigeration System & Components

The most energy-efficient walk in cooler on the market

combination walk in cooler and freezer unit
  • Cuts operating costs
  • Reduces power bills
  • Lowers maintenance/repair costs
  • Eliminates replacement and construction costs
  • Includes a 12-year structural warranty

Know why there aren’t any seams on a Polar King walk in cooler? The sleek, continuous design isn’t just for looks—it’s part of what makes our walk in coolers so energy efficient. Our patented construction process starts with premium polyisocyanurate rigid board insulation that we completely encase in durable fiberglass, inside and out. This one-piece construction increases the strength of the structure and blocks air and moisture from contacting the insulation and causing it to deteriorate. The rigid insulation completely surrounds the insulated chamber, eliminating the possibility of “hot spots” found in other units.

Polar King walk ins are so efficient that they can reduce maintenance & repair costs, cut power bills, and eliminate construction & replacement costs. The durable fiberglass structure won’t rust, dent or corrode, and it can stand up to the elements without needing a roof cap or other expensive protection. Our outdoor walk in coolers arrive ready to operate without the added cost of onsite assembly — and because they’re outdoor units, you can effectively add to your square footage by relocating your cold storage outside.

The attractive units can stay looking factory new for many years with regular care and cleaning and with our 12-year complete structural warranty, you can count on your walk in cooler to last even in the most extreme weather conditions.

Need an outdoor walk in cooler or freezer rental? Check out PolarLeasing.com.

Configurations that fit your needs

Inside of a Polar King industrial freezer
Blue and grey layout of refrigeration units

Outdoor walk in coolers can be installed as thru-wall or freestanding units, depending on what works best for your workflow. Freestanding units stand alone and are accessed from outside. Thru-wall installations combine the space-saving efficiency of an outdoor unit with the ease of indoor access. If your needs change, units can often be modified later to switch between thru-wall or outdoor access.

Polar King walk-ins can offer cooler or freezer storage — or even give you a combination of both. And because you can design your own layout with doors and walls wherever you need them, you can give your operators unlimited storage opportunities created specifically for your application. Additional configuration options can organize your walk-in cooler for even more efficiency.

Need more space inside of your building? Polar King walk ins come in 6′ to 16′ widths and can be up to 60′ in length. Before you consider expanding your structure, consider how much additional room you can gain by relocating your cold storage outside of your floor plan.

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What to expect with Polar King walk in coolers

Metal shelving on the inside of a Polar King commercial freezer

Installing a Polar King walk in cooler couldn’t be easier.  Your unit arrives at your location pre-built, tested, and ready to go* with just a simple electrical connection**. The reliable, high-quality refrigeration equipment is designed to give you many years of trouble-free operation.

Polar King walk-in coolers and walk-in freezers come standard with:

  • A smooth, continuous fiberglass surface both inside and out
  • 208-230/1/60 refrigeration system
  • Interior lighting
  • Lockable door latch
  • Hasp lock on external door
  • Rain cap exterior doors
  • Close assist hinges
  • Door closer
  • Safety release handle
  • Heated door jamb
  • Sweep seal
  • Magnetic gasket
  • Defrost timer
  • Low ambient controls
  • Light switch/pilot light
  • Your choice of exterior colors
  • Remote thermometer
  • Heavy-duty non-skid floor
  • Heated freezer door
  • Crowned roof

* – Units specified with remote refrigeration are detached from the walk-in on arrival and do not include installation or refrigeration system testing.  Remote systems do not include refrigerant unless otherwise specified.

** – Polar King delivery drivers do not perform any on-site electrical work. Electrical connections and on-site wiring are the sole responsibility of the customer and  be completed by a licensed electrician.

Colors that match your design

Paint swatches

Standard Colors

Your Polar King walk in cooler can be painted a solid color to match your exterior building with your choice of thousands of exterior colors.

You can choose one of our standard colors or provide us with a suitable paint code. We can also make a near perfect match with a sample of your current building color.

We even offer a variety of exterior finishes, including brick and granite, and may even be able to provide an exact match for the pattern of your building. See our Custom Exteriors & Paint page for more information and examples of our work.

Accessories that fit your application

Food shelving and different parts of Polar King freezer unit

Whether you need shelving to organize ingredients, temperature data recorders for compliance monitoring, or anything in between, Polar King has accessories to create the custom walk in you’ve been looking for.

We even offer graphic design services and custom finish work so your Polar King walk in can provide an opportunity to showcase your brand or artwork.  Ask your sales representative which options are right for you.

Accessories include:

  • Ramps
  • Shelving
  • Door view windows
  • Security hasp locks
  • Stainless steel kick plates
  • Digital thermometers
  • Temperature data recorders
  • Exterior lighting
  • And more!

Humidity Control Systems

Because fluctuating humidity and temperature can cause spoilage, damage products, and significantly decrease shelf life in sensitive products, we offer systems with precise temperature and humidity control. We can build custom walk ins to provide a variety of different humidity levels and add or remove moisture as needed for your application.

Safe delivery you can count on

Crane lifting a tan colored walk in freezer for delivery

You won’t get third-party delivery drivers with Polar King. Your new outdoor walk in cooler will arrive in the same condition it left the factory on company trucks, driven by experienced Polar King drivers. They’ll set your walk in in place with a truck-mounted crane, forklift, or other appropriate equipment to ensure a safe, smooth, and timely delivery.

Because your unit has been assembled and tested at the factory, there’s no need for an onsite refrigeration contractor. All you’ll need is a simple electrical connection to get your walk in cooler running in just a few hours.

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Get your commercial walk in cooler fast with Quick Ship

Can’t wait for your walk in cooler? With Polar King’s Quick Ship program, you don’t have to sacrifice quality for speed. We have top-of-the-line walk in coolers in a variety of sizes and configurations ready to ship to you in as little as 10 days. And each one features Polar King’s signature premium polyisocyanurate rigid board insulation encased in durable fiberglass. With Quick Ship, you can get the efficient walk in cooler you want with the speed you need.

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  • New 8′ x 8′ Walk in Cooler

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  • New 8′ x 12′ Walk in Cooler

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  • New 8′ x 12′ Cooler (Split System)

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  • New 8′ x 20′ Cooler (Split System)

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  • New 8′ x 20′ Cooler/Sub-Zero Freezer Combo

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  • New 8′ x 20′ Combination Walk-In

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Featured commercial applications

walk in cooler outdoor

Restaurants

Walk in coolers provide outside solutions to inside storage problems, in both stand-alone and through-wall applications.

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Polar King walk in beer keg cooler

Beer/Keg Coolers

Polar King’s walk in keg and beer coolers can be customized to accommodate any taproom, brewery or beer cave need.

See beer coolers
Metal shelving inside walk-in mortuary freezer unit

Medical/Pharmaceutical Cold Rooms

Temperature-controlled environmental rooms and walk in cold rooms specifically designed for the storage of pharmaceutical products, samples and specimens.

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Custom Exteriors

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Custom Paint

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Ready to get started?

Simply fill out the contact form below and one of our specialists will be in touch soon to discuss how a Polar King walk-in can help your operation.

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Frequently Asked Questions About Walk in Coolers

Want to know more about Polar King walk in coolers? If you don’t see what you’re looking for below, check out complete answers to our 14 most frequently asked questions here.

How do you choose a walk in cooler?

Start with a quick needs check based on your menu and space so you can right-size the unit and decide between an indoor or outdoor walk in cooler. From there, compare commercial walk in coolers on insulation and energy efficiency, door layout for your workflow, and any options you truly need while weighing total cost of ownership and whether to rent or buy.

For a simple checklist and examples, see Polar King’s guide to choosing the right walk in cooler or freezer for your business.

What factors should I consider when evaluating the top walk-in cooler manufacturers?

Start by deciding whether you need an indoor or outdoor walk in cooler, since that choice sets your initial shortlist and installation requirements. Next, pick your preferred construction style: seamless fiberglass for an energy efficient, low maintenance design, or panel built if you are comfortable with seams and on site assembly to save on initial purchase price.

Then compare brands by total cost of ownership. Total cost is driven largely by energy efficiency, which depends on insulation quality and energy loss controls such as tight door seals, as well as by overall build quality of the box and refrigeration components that affect repairs, downtime, and lifespan.

Finally, look for features that matter to your operation such as weather rating and corrosion resistance, and confirm third party approvals like NSF and Miami Dade NOA.

What are the advantages/benefits of outdoor walk-in coolers?

Outdoor walk in coolers add cold storage without taking up interior square footage, and you can place them near receiving or production to improve workflow. Since they are not limited by indoor space, they can be sized to demand, and many models arrive preassembled for simpler installation, while weather rated designs handle rain, snow, and heat when specified for local conditions.

For a side by side of benefits and tradeoffs, see Outdoor vs. Indoor Walk-In Coolers: What’s the Difference?

How does a walk in cooler compare vs. a walk in freezer?

Walk in freezers run below 32°F, typically 0°F to minus 10°F, and use thicker, higher R insulation to limit heat gain. Commercial walk in coolers usually target about 35°F and are built for higher storage temperatures with different performance requirements. A cooler can serve as a freezer only with the right refrigeration and insulation upgrades, and if you need both temperatures in one footprint a dual temperature walk in unit is purpose built for that job.

What are common walk in cooler sizes?

Many commercial walk in coolers fall in the 8′×10′ to 8′×20′ range. That said, Polar King can custom-build outdoor walk in coolers to fit a businesses’ specific location or operational needs, with sizes up to 16′×65′.

What size walk-in cooler do I need for my business?

Size your walk in cooler around what you store, how often you receive deliveries, your peak inventory, and how frequently staff access items.

Because Polar King offers a 100% seamless unit that doesn’t rely on pre-built panels, we are able to offer a walk in cooler in virtually any size.  Available widths are from 6′ to 16′ and lengths of 8′ to 65′.  Units can be ordered with even or odd dimensions, or even right down to the inch.

Can I get a custom-sized commercial walk in cooler?

Yes. Many commercial refrigeration manufacturers offer modular and custom commercial walk in coolers, letting you match footprint and at least some other features to your space and workflow.

Polar King builds seamless, one piece fiberglass units, commercial walk in coolers can be made to order with widths from 6 to 16 feet and lengths from 8 to 65 feet, including even or odd dimensions down to the inch. You can also specify height, door locations, and interior options to fit your site and workflow.

Can I customize the layout or exterior of a walk in cooler?

Yes. Door locations, interior options, and exterior colors or finishes can be tailored to your site and brand, including paint matches and architectural facades.

What temperature does a walk in cooler operate at?

Most commercial walk in coolers are set near 35°F, and many applications range from about 35°F to 55°F depending on product needs. Temperature setpoints should, of course, always match food safety or process requirements.

How does a walk in cooler work?

A sealed, insulated room removes heat from the interior. Refrigerant absorbs heat inside the box, is compressed and rejects heat outdoors, then expands and returns cooler to repeat the cycle. This is the same thermodynamic process as a household refrigerator, scaled for commercial walk in coolers.

How much electricity does a walk in cooler use?

Electrical demand varies by size, climate, loading, and door activity. Typical systems fall in the 1.5 to 3 horsepower range and draw roughly 15 to 30 amps around 208 to 230 volts.

What type of insulation is used in walk in coolers?

Common options include polystyrene, polyurethane, and polyisocyanurate rigid board. Polar King uses premium polyisocyanurate rigid board completely encased in durable fiberglass, which creates a continuous thermal and moisture barrier and helps prevent hot spots.

What safety or code requirements apply to walk in coolers?

OSHA requires that employees can open exit route doors from the inside at all times without keys, tools, or special knowledge. Walk in cooler doors therefore include interior safety releases to prevent entrapment and to align with exit-route provisions. Local code officials may apply additional requirements, so always verify with your authority having jurisdiction.

Other safety ratings include Underwriters Laboratories (UL) approval of electrical components, National Fire Protection Association (NFPA) for fire safety, National Sanitation Foundation (NSF) for cleanability, and American Association for Testing and Materials (AATM) for industry consistency and safety.

Do walk in coolers need a floor drain?

Most do not. That said, drains can be installed for special use cases such as meat or poultry processing where frequent washdown or product handling creates liquid waste.

What is the lighting requirement inside a walk in cooler?

Lighting inside of a walk in cooler is typically 70 to 80 to ensure safe visibility. Brightness can be specified, however, to meet task needs and staff preferences.

Are Polar King outdoor walk in coolers approved for Miami-Dade high-velocity hurricane zones?

Yes. Polar King holds Miami-Dade Product Control Notice of Acceptance No. 21-0914.04, which covers use in Miami-Dade County and other areas where permitted by the authority having jurisdiction.

What are the installation requirements for an outdoor walk-in cooler?

Set the walk in cooler on a level, load-bearing surface with good drainage and place it where the condensing section has open air for ventilation. Provide the correct electrical service and have a qualified electrician make the connection according to NEC and local code, then complete the manufacturer startup checks. Plan site access for delivery and placement, and follow any local anchoring or weather-exposure requirements.

Polar King outdoor walk in coolers arrive fully assembled and are ready to run after a simple electrical connection. There is no on-site panel assembly or refrigeration work, so most customers are up and operating within hours.

Where should I locate an outdoor walk in cooler?

Choose a location that balances workflow with exposure. Units in direct sun in hot climates will work harder than shaded placements, and proximity to kitchens or receiving will impact employee efficiency. Polar King units are approved for harsh weather conditions, including high-velocity hurricane zones when installed per the Notice of Acceptance.

Are Polar King walk in coolers delivered fully assembled?

Yes. Our walk in coolers arrive fully assembled, factory tested, and typically require only a simple electrical connection, which allows most customers to be operational the same day. This removes the need for on-site panel assembly or separate refrigeration work.

How fast can I get a walk in cooler through the Quick Ship program?

Polar King’s Quick Ship Program prioritizes the most common sizes and configurations so that you can place an outdoor walk in cooler quickly without sacrificing build quality. Select sizes are available with a listed shipping target as soon as about 10 days, subject to availability and distance.

What are best practices for organizing a walk in cooler?

Try a simple, staff-friendly system that puts safety and airflow first. Use wire shelving, keep space around evaporators, and store raw items below ready-to-eat foods with everything at least six inches off the floor; then label shelves, post a basic map, and restock using FIFO so items always go back to the same place.

For a printable layout and step-by-step tips, see Polar King’s guide to organizing a walk in cooler and freezer.

How do I clean a walk in cooler and prevent mold growth?

Use mild dishwashing liquid and water and avoid bleach, ammonia, or other caustic cleaners, which can degrade surfaces and create places where bacteria grow.

After cleaning, remove standing water immediately to reduce slip hazards and keep the interior dry.

Keep condenser coils free of dust and debris, replace or clean air filters on the recommended schedule, and wipe door gaskets, thresholds, and drain pans so moisture does not linger.

What warranty do Polar King walk in coolers include?

The published standard coverage includes 25-year internal foam, 12-year structure, 5-year extended compressor, and 1-year parts and refrigeration components. Always review the current warranty document that ships with your unit for the controlling terms.

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