Cold Room or Cold Storage? Scale, Build, Cost and Subsidy Compared

The difference is scale, and scale changes everything else — construction, refrigeration, approvals, subsidy and cost per tonne. A cold room is a single insulated, refrigerated room, from about 5 MT up to a few hundred MT, usually assembled from prefabricated PUF panels (see what is a cold room). A cold storage is a multi-chamber facility, usually 500 MT and above, with a civil building, a central refrigeration plant, ante rooms and dispatch docks.

In everyday Indian usage the words overlap — a trader may call a 10 MT room their 'cold storage' — but the distinction matters as soon as you talk to a bank, a subsidy agency or a licensing office.

A cold room is an equipment purchase. HyperCold supplies the PUF panels, door, Daikin refrigeration and controller and erects them on a floor you provide; foundation, flooring, drainage, water and the power connection stay in the client's scope. Panels lock together with cam-locks, so the room can later be extended, split or relocated. Rooms wider than 10 ft add an MS roof support frame, and standard designs stop at 20 ft width — beyond that you are designing a building, not a room.

A cold storage is a construction project. Civil works — RCC foundation and slab, sub-floor insulation, drainage gradients, loading docks and the external shed — are about 12–18% of capex on a 1,000 MT project, and electrical infrastructure (HT/LT line, transformer, panels, lighting, earthing) another 8–12%. Floor insulation is not optional at this scale: in north Indian summers an uninsulated floor can account for 15–22% of the total cooling load.

Cold rooms use packaged split systems: a condensing unit outside and an evaporator inside. HyperCold's configurator picks the Daikin series by temperature band — HMT for +8 to +15 °C produce rooms, MT for 0 to +8 °C chillers and LT for −18 to −22 °C freezers — and the size by room volume. The FY2026-27 rate card runs from 1.5 HP to 14 HP condensing units plus 25–35 HP semi-hermetic units, and large rooms get two to eight units in parallel. Every frozen room is configured with a standby unit (for example 1 working + 1 standby), so a breakdown does not cost the stock.

Cold storages move to central plants. HyperCold's refrigerant guide puts the crossover at about 1,500 MT for general cold storage: below it, Freon systems (R32 increasingly preferred) win on capital cost; above it, ammonia (NH3) plants are more efficient but need a PESO licence for more than 50 kg of ammonia, trained operators and continuous gas detection. The trade-offs are in ammonia vs Freon.

Cost per MT falls steeply with scale, because doors, controls, machines and installation are spread over more tonnes. These are HyperCold's published indicative all-in bands for 2026; GST treatment, site conditions and scope move the final figure.

The 50 MT-plus rows assume a north Indian climate, a level civil pad and 415 V three-phase power at site; coastal, hill and sub-zero projects run 15–35% higher. For one specific room, the quotation configurator prices panels, door, Daikin machine, controller and installation from the FY2026-27 rate card: an 8 × 8 × 8 ft chiller rated at about 5.2 MT comes to about ₹2.6 lakh plus GST, before freight, civil work and optional items. All figures are indicative; the final price follows a site survey.

If the product is food, the operator needs FSSAI registration or a licence whatever the size; the category follows turnover (basic registration below ₹12 lakh, state licence from ₹12 lakh to ₹20 crore, central licence above ₹20 crore; confirm against current FSSAI rules). Beyond that, the two formats sit in different worlds:

• Cold room (5–20 MT) — usually below the size NHB and MIDH capital subsidy is designed for; HyperCold's cost pages cite 30 MT as the usual starting point, and a 20 MT room combined into a 30 MT-plus facility can come within those norms. Eligible farmers, FPOs and agri-entrepreneurs can use the Agriculture Infrastructure Fund's 3% interest subvention on loans up to ₹2 crore, PMFME for micro food processing units, or state schemes.
• Cold storage (500 MT and above) — the scale NHB's credit-linked, back-ended capital subsidy is built for: typically 35% of eligible project cost in general areas and 50% in the North-East and hilly areas, released after commissioning and joint inspection. It needs a bank term loan and a subsidy-grade DPR, and a new facility also needs Fire NOC, pollution consent (CTE before construction, CTO after), building plan approval, an HT power sanction and a factory licence once 10 or more workers are employed with power.

Scheme rules and percentages change; check the current notification and read the NHB subsidy guide before planning finance around a subsidy.

Choose a cold room when:

• you store your own stock — a restaurant, dairy, pharmacy, trader or FPO — rather than renting space to others;
• volume is under a few hundred MT, or you need several different temperatures in small quantities;
• you want delivery in weeks and the option to extend or relocate;
• the budget is in lakhs rather than crores.

Choose a cold storage when:

• you plan to rent capacity to many farmers or traders, as bulk potato stores do;
• a single commodity runs into thousands of MT per season;
• you can carry an 18–30 month NHB cycle from DPR to subsidy release;
• you have land, an HT power connection and staff to run a plant.

Between the two sits the modular multi-room facility: several panel rooms side by side, each at its own temperature. The configurator's common-wall option removes the shared wall panels — two 10 × 10 × 9 ft fruit-and-vegetable rooms in series need 89 m² of panel instead of 106 m², about ₹35,000 less ex-GST.

Partly. Modular panels can be extended and new rooms added alongside, so a 10 MT room can become a 30–50 MT multi-room facility without demolition. What does not scale is the site: a true cold storage needs load-bearing civil work, dock space, a transformer-grade power connection and approvals that are far cheaper to plan on day one than to retrofit.

If a 500 MT-plus facility is the end goal, size the land, power sanction and project report for it from the start, and build the first chambers inside that plan. Starting construction before in-principle approval is the single biggest reason NHB applications are rejected, so sequence the paperwork first — HyperCold's DPR support covers the bank and subsidy documentation.