Commercial Cold Room Guide for Hospitality: Construction, Panel Types & Floor Solutions

Surface-facing options for cold room panel

Cold Room Door Types: Hinged, Sliding, & Strip Curtain

The door is one of the highest-risk points in any cold room; every opening allows warm air in and forces the refrigeration unit to work harder. Choosing the right door type for the traffic level and layout can make a meaningful difference to both energy efficiency and temperature stability.

• Hinged doors are the standard choice for most cold rooms. They provide an excellent seal, are straightforward to install and maintain, and are available in single or double configurations. Best suited to moderate-traffic environments where the door isn't being opened every few minutes. Most hinged cold room doors feature self-closing mechanisms, magnetic gasket seals, and, critically, an internal emergency release handle. Nobody should ever be able to get locked inside a cold room.
  Pro tip: Door Swing Clearance
  Door swing clearance (also known as opening radius) is a critical spatial consideration that is easy to overlook during the design phase. To ensure the door leaf operates freely without striking adjacent walls or obstructions, the required hinge-side clearance is calculated based on the clear opening width (X):
  1. 90° opening — requires a lateral clearance of ≥ X + 240mm
  2. 180° opening — requires a lateral clearance of ≥ X + 260mm
  
  
• Sliding doors work well in tight spaces where a swinging door would cause obstruction, and are popular in larger walk-in cold stores where trolleys, pallet trucks, or forklifts need access. They require a clear wall run alongside the opening, so space planning is important. Sealing performance is slightly lower than that of a well-fitted hinged door, so they're more commonly used in chilled than frozen applications.
  
  
• Strip curtains (PVC strip doors) are used as a secondary thermal barrier inside a door opening, particularly in high-traffic commercial kitchens where staff are moving in and out constantly. They're not a replacement for an insulated door, but they significantly reduce the temperature loss with every entry. Often used in conjunction with hinged or sliding doors, especially in busy restaurant pass-through areas or dispatch zones.

Cold Room Floor Solutions

Floor design is one of the most frequently underestimated aspects of cold room specification, and getting it wrong can be expensive to fix later.

For cooling rooms operating above 0°C, it is often acceptable to use the existing building floor, provided it is level, properly sealed, and meets food hygiene requirements. An insulated floor panel system can be laid on top to improve thermal performance without a full structural build.

For a walk-in freezer operating at -18°C or below, an insulated floor is non-negotiable. Without adequate underfloor insulation, the sustained cold penetrates the concrete substrate below, causing it to heave and crack over time, a costly structural problem that is far easier to prevent than repair.

Floor surfaces in cold rooms must meet four practical requirements: anti-slip (especially important where condensation is present), easy to clean, load-bearing capacity appropriate for the operation, and compliance with food hygiene regulations. Aluminium tread-plate is frequently used in walk-in freezers for its durability and grip under frozen conditions.

For outdoor modular cold rooms or units installed on uneven ground, a dedicated raised floor frame with insulated panels provides both the thermal barrier and a level, hygienic working surface.

Walk-In Freezer vs Walk-In Cooler

Just like most individual refrigeration units behind the line, commercial cold rooms are available as coolers and freezers, each designed for storing different products at different temperature ranges.

A walk-in cooler (chilled room) maintains temperatures between +1°C and +5°C. It is designed for fresh produce, dairy, cooked food awaiting service, beverages, and anything that needs to be kept cold but not frozen. This is the day-to-day storage equipment of most commercial kitchens and hotel food operations.

A walk-in freezer operates at -18°C or below. It is for long-term frozen storage, protein, ice cream, par-cooked products, batch-prepared meals, and anything that needs to be preserved for weeks or months rather than days.

Many hospitality operations need both, and a modular cold room (a cooler and freezer sharing a common insulated wall) is the most cost-effective solution for operations that need both temperature zones without doubling the footprint. The shared wall reduces the thermal differential between zones and cuts energy consumption compared to two entirely separate units.

If the operation relies heavily on fresh-daily ingredients with minimal frozen stock, a larger walk-in cooler paired with a small standalone freezer chest may be more practical than a full freezer room. Conversely, operations that batch-cook, bulk-buy, or manage large frozen inventories benefit significantly from a dedicated walk-in freezer.

How to Choose the Cold Room Matching Your Hospitality Business

Choosing the right commercial cold room is not simply a matter of picking a size and placing an order. It is a specification decision that affects food safety compliance, operational efficiency, energy costs, and long-term equipment lifespan. The following steps walk through the key considerations in the order they should be addressed.

1. 1. Define the Temperature Requirement
   The first and most fundamental question is whether the operation needs chilled storage, frozen storage, or both. A walk-in cooler operating at +1°C to +5°C and a walk-in freezer operating at -18°C or below are built to entirely different specifications, different panel thickness, different refrigeration system capacity, and different floor requirements. Getting this wrong at the outset means either undershooting performance or overspending on capability that is never used. If both temperature zones are needed, a combination cold room sharing a common insulated wall is almost always more cost-effective than two entirely separate units.
   
   
2. Calculate the Required Storage Volume
   Sizing a cold room correctly comes down to one core calculation. The industry-standard formula, based on GB50072-2010 cold storage design specifications, is:
   G = (V × η × ρs) ÷ 1000
   G — cold room capacity (tonnes)
   V — internal volume of the cold room (m³)
   η — space utilisation coefficient (typically 0.4–0.6; smaller rooms run lower, larger rooms run higher)
   ρs — calculated density of the stored product (kg/m³)
   In practice, the density of the stored food is the critical variable in arriving at an accurate figure; refer to the food density reference table below for common product types. Always build in a 20–30% buffer above the calculated minimum to account for peak delivery days, seasonal demand spikes, and future business growth.
   
   
   
3. Assess the Installation Space and Location
   Before any equipment is ordered, the physical installation environment needs to be fully assessed. For indoor walk-in cold room installations, confirm that the floor is level, the ceiling height is sufficient for panel assembly and refrigeration unit mounting, and that there is adequate ventilation clearance around the condensing unit. For outdoor installations, the specification changes significantly, with weatherproof condensing units, UV and moisture-resistant panel facings such as stainless steel, and a raised insulated floor frame all typically required. Access routes for panel delivery and installation also need to be confirmed early, as cold room panels are large and require clear, unobstructed pathways into the building.
   
   
4. Choose the Right Panel Facing Material
   Panel facing material directly affects hygiene compliance, durability, and long-term maintenance cost. For most standard indoor hospitality environments, PUR or PIR core panels with stainless steel facing offer the best balance of performance and value. For wet or coastal environments, PVC is the perfect solution. For cold room floors specifically, anti-slip stainless steel or anti-slip aluminium are the standard options, depending on the required load rating and hygiene standard. For a full breakdown of all eight facing material options and their recommended applications, refer to the Cold Room Panel Types section earlier in this guide.
   
   
5. Indoor or Outdoor Installation
   Whether the cold room is installed inside the building or outdoors as a standalone unit affects nearly every aspect of the specification, including the condensing unit type. Indoor cold rooms benefit from a stable ambient environment, which reduces the thermal load on the refrigeration system and extends equipment lifespan. For indoor installations in high-ambient-temperature locations such as tropical climates or hot kitchen environments, a water-cooled condenser is the more efficient choice. In cooler ambient conditions, a standard fan-cooled condenser performs reliably and at lower cost.
   Outdoor units face a more demanding environment, direct sunlight, temperature fluctuation, rain, and wind all increase energy consumption and place greater demands on panel facings, door seals, and the condensing unit. Outdoor installations should always specify a weatherproof condensing unit with an appropriate IP rating, moisture-resistant panel facings, and a raised floor frame with proper drainage. Installing a shade structure or canopy over an outdoor unit can meaningfully reduce solar heat gain and improve overall system efficiency year-round.

Why SHINELONG Is the Popular Option

Setting up the right walk-in cold room for a hospitality operation is not a simple procurement decision. It involves layout design, product storage requirements, serving volume, material selection, installation logistics, and ongoing after-sales support, every element interconnected. That is exactly why working with an experienced turnkey partner makes the difference between a cold room that merely functions and one that genuinely supports the operation.

SHINELONG is a premium turnkey commercial kitchen solution provider based in China, having delivered thousands of successful projects across the globe, from independent restaurants and hotel groups to large-scale food production facilities and institutional catering operations. The approach goes beyond product supply: every solution is built around the specific needs of the business, the kitchen workflow, and the long-term efficiency of the food service operation.

6 Reasons Why Hospitality Businesses Choose SHINELONG

1. End-to-End Turnkey Solution
From initial kitchen layout design through to equipment supply, cold room installation, and post-installation after-sales service, SHINELONG manages the entire process under one roof. There is no need to coordinate between multiple contractors or suppliers

2. Advanced Refrigeration Technology
Cold rooms supplied by SHINELONG are equipped with high-performance condensing units featuring internal thread copper piping and aluminium foil radiators, delivering up to 20% greater heat transfer efficiency compared to standard units. The result is a more stable cold room temperature, lower energy consumption, and a longer compressor lifespan.

3. Globally Certified Products
Every SHINELONG cold room is built to meet international standards, with certifications including CQC and CE.

4. Full Material Customisation
With eight panel facing material options from colour steel and stainless steel to FRP and anti-slip aluminium, SHINELONG cold rooms are specified to match the exact hygiene, durability, and environmental requirements of each project.

5. Proven Global Project Experience
With thousands of completed installations across multiple continents, SHINELONG brings real-world project experience to every build. From compact modular walk-in coolers for boutique hotels to multi-zone cold stores for group meal suppliers and food production facilities, the team has encountered and resolved the full range of specification, installation, and operational challenges.

6. Long-Term After-Sales Support
A cold room is a long-term infrastructure investment, and SHINELONG treats it as one. After-sales support covers technical consultation, spare parts supply, maintenance guidance, and responsive service, ensuring the equipment continues to perform at specification throughout its operational life, not just on day one.

If you are planning a new cold room installation, expanding existing cold storage capacity, or upgrading ageing refrigeration equipment, speak to the SHINELONG team. Share your space dimensions, storage requirements, and serving volume and the team will design the right cold room solution for your operation, from specification through to installation.