At KPS Global® choosing a walk-in cooler or freezer is more than temperature control, it’s about long-term performance, reliability and peace of mind. Our engineered solutions are designed to meet the demands of a wide range of environments, from high-heat regions to sub-zero.
Below, our experts answer some of the most common questions we receive about insulated metal panels, doors, finishes and lighting systems.
What Kind of Metal and Thickness is Used on KPSG Walk-Ins?
KPS Global panels are built using Aluminum-Zinc Steel or Stainless-Steel metal skins ranging from 20 to 26 gauge in a variety of natural coated or painted finishes. Stainless steel skins provide an additional level of corrosion resistance for harsh environments whereas Aluminum-Zinc Steel provides a proven economical solution for most customer needs. Our metal options are tailored to each application delivering exceptional strength, corrosion protection and longevity, making it ideal for cold storage environments that demand structural integrity and durability.
What is the Thickness of Paint Used on Insulated Metal Panels?
KPSG painted skins feature a layer of primer to promote adhesion to the base metal and a topcoat in a variety of colors to meet our customers’ specifications. Overall painted thickness will vary but 1 mil (1/1000”) is common for total dry film thickness. Our vendors perform extensive quality testing during the painting process to ensure long life and durability of the finishes for years to come.
Are Entry Swing Doors on a Walk-In Cooler and Freezer Heated?
KPSG freezer doors include a heated door jamb along the perimeter as well as a heated sweep mounted to the bottom of the door to prevent frost buildup and ensure unrestricted, reliable door operation. KPSG cooler doors do not require heat for reliable operation.
Is There a Required Panel Thickness for Outdoor Coolers?
Outdoor walk-ins are custom engineered by our KPS Global in-house engineering and design teams. Each project is evaluated based on:
- Geographic location and environmental exposure (snow, hurricanes, seismic zones, etc.)
- External temperature highs and lows
- Box application and internal temperature requirements
Every outdoor unit is tailored for its specific environment, whether it’s built for the extreme heat of Arizona or the sub-zero cold of Alaska. KPSG adjusts metal finishes, roof options, panel thickness and structural reinforcement to ensure the unit will operate efficiently and withstand the ever changing weather conditions.
For outdoor walk-ins KPSG recommends a white finish. Darker finishes like black can increase surface temperatures up to 160°F, forcing refrigeration systems to work harder, therefore shortening the lifespan of the insulated metal panel frame.
Does KPSG Supply Glass Doors for Walk-Ins?
Yes, KPS Global partners with leading glass door manufacturers to supply a range of door options, customized to your cold storage design and thermal performance needs.
What Kind of Lighting is on the Sides of Glass Doors in a Walk-In?
The sourced glass doors are equipped with ballast LED high-output lights designed to perform in low and ultra-low temperatures. These lights provide consistent, bright illumination while maintaining efficiency in demanding cold environments.
Can you Incorporate Ceiling Lighting on KPSG Walk-in Coolers and Freezers?
Yes, ceiling lighting can be surface mounted to your KPSG walk-in. We offer LED high-output fixtures as well as incandescent vapor tight options that operate in cold conditions. You can customize the quantity and layout to best suit your operational or display needs. Check out our parts store to review a few of our lighting options!
What are the New Regulations for Energy Code for Thickness and R-Value That are Required for Panels?
The federal energy standard applies to walk-in coolers and freezers manufactured on or after January 1, 2009, with a total chilled storage area under 3,000 sq. ft.
- If the total chilled area is 3,000 sq. ft. or greater, the project must follow local code requirements instead of this federal standard.
- These rules do not apply to walk-ins designed for medical, scientific or research purposes.
Minimum Required R-Values (per Federal Code):
- Cooler walls, ceilings and doors: R-25 minimum
- KPSG 3½” panels and standard doors comply.
- Freezer walls, ceilings and doors: R-32 minimum
- KPSG 4″ and 5″ panels and standard doors comply.
- Freezer floors: R-28 minimum
- KPSG 4″ floor panels (or 3½” + ½” substrate) comply.
How is Compliance Verified?
Compliance is typically verified directly with the manufacturer. The best practice to confirm compliance status with the panel manufacturer is by asking whether their equipment meets current DOE efficiency requirements. A reputable manufacturer should be able to clearly confirm their compliance status and support it with relevant technical details. Understanding DOE requirements for walk-in coolers and freezers helps confirm regulatory compliance and ensure peace of mind and support long-term cold storage performance.
Does KPS Global Have a Spec Sheet with New Energy Code Requirements?
What is the Price of a Five-Door Walk-In Cooler with a Man Door?
As a custom cold storage manufacturer, KPS Global engineers every walk-in solution from the ground up. Pricing depends on:
- Door quantity and type.
- Dimensions, panel thickness and frame type.
- Additional components, finishes and safety features.
For more details or to discuss your project, contact your local KPSG Regional Sales Manager. We’ll help you design a cost-effective, high-performance walk-in solution that meets your exact needs.
At KPS Global, we don’t just build cold storage, we provide a superior quality product and unrivaled solutions for today and tomorrow. Every panel, door and component is designed and chosen with precision and supported by a team dedicated to your success.

