When it comes to cold storage, every business has unique requirements. From restaurants and grocery stores to farms and breweries, the way you store temperature-sensitive products can directly impact efficiency, safety, and profitability. That’s why designing a custom walk-in cooler or freezer is often the best solution.
Polar King makes the process simple with an online Build Your Own tool that allows businesses to configure a cold storage unit tailored to their specific needs. Instead of settling for a one-size-fits-all unit, you can design a walk-in that fits your space, workflow, and operational goals.
Why a Custom Walk-In Matters
Cold storage needs vary widely depending on the industry and facility layout. Some operations require extra storage capacity, while others need specialized temperature control or unique layouts.
Polar King walk-in units are custom-built to fit specific applications, allowing businesses to design solutions that maximize efficiency and storage capacity. Units can be configured for cooler, freezer, or combination use and built to match operational requirements.
With a custom walk-in, you can design a system that:
- Fits your available space
- Supports your workflow and storage needs
- Improves organization and product accessibility
- Expands storage without expanding your building
Step 1: Choose Your Unit Type
The first step in designing a custom walk-in is determining what type of cold storage you need.
Options typically include:
- Walk-in coolers for refrigerated storage
- Walk-in freezers for frozen products
- Combination cooler/freezer units
- Dry Storage
Polar King outdoor walk-ins maintain reliable temperatures and are built specifically for outdoor refrigeration applications, helping businesses expand storage without sacrificing indoor space.
Step 2: Determine the Right Size
Every facility has different space requirements. A walk-in unit can be configured with custom dimensions to ensure the best fit for your operation.
When designing your unit, consider:
- Available installation space
- Storage capacity requirements
- Equipment or carts that will enter the unit
- Workflow and traffic patterns
Polar King walk-ins can be built in widths from 6 to 16 feet and lengths up to 60 feet, with height configured to fit your space, giving operators flexibility to create the layout that works best for them.
Step 3: Configure Doors and Layout

Door placement and configuration play a major role in efficiency and accessibility.
Common customization options include:
- Standard or oversized doors
- Multiple doors for high-traffic operations
- Door placement based on workflow
- Through-wall or freestanding installations
Polar King units allow businesses to design their own floor plan and position doors and walls wherever needed to optimize workflow.
Step 4: Select Interior Features and Accessories
Custom walk-ins can be enhanced with a range of interior features designed to improve performance and usability.
Examples include:
- Heavy-duty flooring for equipment traffic
- Shelving systems for better organization
- Interior lighting
- Alarm systems for temperature monitoring
- Vinyl strip curtains to reduce temperature loss
- Ramps for easier loading and unloading
These options help create a workspace that is efficient, safe, and tailored to your daily operations.
Step 5: Customize the Exterior
In many cases, a walk-in unit is visible from the outside of your facility, making exterior customization an important consideration.
Polar King offers extensive exterior customization options, including:
- Custom paint colors
- Architectural finishes
- Sloped or crowned roofs
These options allow businesses to design cold storage units that blend with their building or support their brand identity.
The Polar King Advantage
Polar King walk-in units are engineered with seamless fiberglass construction, which helps reduce heat absorption and improves energy efficiency compared with traditional metal panel designs.
Each unit is delivered fully assembled and ready to operate, requiring only a simple electrical connection once it arrives on site.
This design reduces installation complexity while helping businesses get up and running quickly.
Design Your Custom Walk-In Today
Designing a custom walk-in cooler or freezer doesn’t have to be complicated. With Polar King’s Build Your Own tool, you can explore options, configure your ideal unit, see detailed specifications and pricing, and request a quote in one place.
Start building your custom walk-in:
Whether you’re expanding cold storage capacity, upgrading equipment, or building a new facility, a customized walk-in ensures your refrigeration solution works exactly the way your business needs it to.



