Walk-In Coolers & Walk-In Freezers

Foamed-In-Place Insulation


Master-Bilt uses foamed-in-place polyurethane insulation to deliver the highest quality panels.

Walk in panels are manufactured in horizontal presses so they lay flat during the foaming process. Using this method, injected foam doesn't have to rise as far which greatly reduces foam voids.

Polyurethane foaming offers many advantages including:

• Energy efficiency due to polyurethane's greater temperature-retaining properties. In fact, all Master-Bilt panels meet or exceed federal Energy Independence and Security Act requirements.
• Polyurethane foam permanently adheres to metal panels adding strength and reliability
• Superior moisture resistance due to polyurethane's 97% closed cell content
• Maximum walk-in storage space because polyurethane foam allows for thinner walls
• An environmentally-friendly 245fa blowing agent with zero ozone depletion potential

Panel Diversity

panel-familyMaster-Bilt’s standard wall and roof panels are
four inches thick with a standard corrosion-
resistant 26-gauge acrylic-coated galvanized steel interior and exterior finish. Many other finishes are available to match individual design schemes and budget requirements.

Optional five-inch and six-inch panel thicknesses provide additional insulation efficiency where needed as well as added support in snow load situations. Master-Bilt is one of the few manufacturers who can supply up to a 23 ft. long ceiling panel in 6-inch thickness with no additional panel support required.

See our standard walk-in exterior dimensions.

Cam-Lock System

cam-lock-panel-illustrationThe Master-Bilt­ cam-locking system, together with tongue and groove construction and a dual gasket system, provides an accurate, tight fit between panels. Locks require only a factory-supplied
5/16-inch hex wrench to operate. Should the walk-in need relocation or expansion, panels can be taken apart as easily as they are assembled.


door-familyStandard V-Series

Master-Bilt’s standard V-Series entry doors are available in a wide variety of sizes and features. 

V-Series doors are infitting and flush-mounted with a standard size of 36" x 78". They also feature cam-lift hinges which are spring-loaded for an easier, more positive closure.

Unique field-adjustable hinge backing plates ensure a proper fit of the door to its opening during installation and also allow for any necessary future adjustments. Simply loosen the hinge bolts, re-align the door properly, shim and tighten bolts.

Additionally, a standard deadbolt-locking handle on all walk-ins offers extra security without extra cost.

Other door features include:

  • Hydraulic door closure
  • Dial thermometer
  • Vapor proof light
  • Magnetic gasket
  • Adjustable double wiper gaskets
  • Pressure relief port on freezer doors
  • Heated frames on freezer door
Heavy-Duty ColdSeal Max®

Take walk-in security and reliability to the next level with heavy-duty ColdSeal Max doors. As a standard part of Bilt2Spec™ and Ready-Bilt™ models, ColdSeal Max offers many standard features for increased efficiency as well:
  • LED lighting
  • Welded structural anodized aluminum rigid frame
  • Digital thermometer/light switch integrated into one component
  • Deadbolt-locking handle
  • Superior energy efficient thermal break
  • Spring-actuated door closer
  • Heavy-duty, wide strap hinges that are cam-lift and spring-loaded



Walk-in floors, when required, are standard with a .080 diamond aluminum surface. The added traction provided by the raised surface pattern reduces the potential of slip-and-fall accidents, even in wet conditions. Because the surface pattern is designed to be easily cleaned, it fully meets NSF guidelines.

Standard Master-Bilt floors support 700 pounds per square foot (evenly distributed stationary load). 

A reinforced floor can be provided in applications with frequent traffic from heavy handcarts, dollies or forklifts. This heavy-duty floor contains a layer of foamed-in-place plywood to distribute weight of light wheeled traffic across the floor.


For even heavier usage, Master-Bilt's structural floor is designed to withstand a pallet jack or equivalent transporter with an evenly distributed load of up to 5000 pounds over all four wheels. It also allows for maximum weight storage on internal shelving. At the same time, it saves labor by allowing carts or lifts to be driven directly into the walk-in and unloaded.


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