A ghost kitchen walk-in should be sized tightly to the footprint (most single operators use 6×6 to 8×8 ft; commissaries need more), hold 34–40°F for coolers / 0°F for freezers, and above all recover fast through constant delivery-driven door traffic. A cooler/freezer combo usually costs 10–15% less than two boxes and saves rented floor space. Foster's foamed-in-place walk-ins hold ±1°F under heavy use and assemble quickly in tight spaces.
What makes ghost-kitchen refrigeration different
A ghost kitchen is refrigeration under pressure. Orders arrive in delivery-driven bursts, the walk-in door opens far more often than in a traditional restaurant, and every square foot is rented — so the box has to be as small as it can be without running hot at peak. Shared commissaries add another layer: several brands pull from the same refrigeration, multiplying the load. The equipment that wins here is compact, holds temperature through relentless door traffic, and installs fast in the awkward urban spaces dark kitchens occupy.
That combination — small footprint, high duty cycle, fast install — is exactly what Foster's modular, foamed-in-place construction was made for. The same panels that hold ±1°F on a Navy vessel hold it through a Friday-night delivery rush.
How Foster fits a delivery-first operation
- Compact, custom footprints — walk-ins from 6×6 ft, expandable in 2-ft increments, engineered around the space you're renting rather than a fixed catalog box.
- ±1°F through heavy door traffic — sealed, foamed-in-place panels and self-closing doors with magnetic gaskets hold food-safe temperature even when the door opens constantly at peak.
- Fast, tight-space install — modular panels assemble quickly, including in basements, second floors, and cramped urban build-outs; typical build time about 4–6 weeks.
- Multi-brand layouts — zoned shelving or separate cooler and freezer sections so several delivery brands share one efficient refrigeration footprint.
- Combo units save space and money — a cooler/freezer combo typically runs 10–15% less than two separate boxes and frees floor area for prep and pickup.
Size it with the heat load calculator, compare a combo vs. separate units in the cost calculator, then configure and price it in the 3D builder.
In a delivery kitchen, door-opening frequency — not room size — is usually what strains the refrigeration. Prioritize hold accuracy and fast recovery over raw capacity, and don't oversize the box: every extra square foot is rent you pay every month.
Who it's for
Foster ghost-kitchen refrigeration serves single-brand delivery operators, multi-brand virtual restaurant groups, shared commissary and commissary-as-a-service facilities, cloud kitchens inside existing restaurants, and caterers running delivery-only lines. Wherever throughput and footprint both matter, the build is the same one Foster has shipped since 1946.
Frequently asked questions
What size walk-in cooler does a ghost kitchen need?
Most single-operator ghost kitchens run a compact 6×6 to 8×8 ft walk-in, while a shared commissary serving multiple brands needs more because several menus draw from the same refrigeration. Since space is usually rented, size precisely with the heat load calculator — an oversized box wastes rent, an undersized one runs hot at peak.
What temperature should a ghost kitchen walk-in hold?
A cooler should hold about 34–40°F (1–4°C) and a freezer at or below 0°F (-18°C). High delivery volume means constant door openings, so hold accuracy and fast recovery matter more than in a low-traffic kitchen. Foster panels hold ±1°F through heavy door traffic, protecting food-safety temperatures at peak.
How fast can a ghost kitchen get a walk-in installed?
Foster custom walk-ins typically build in about 4–6 weeks, and the modular foamed-in-place panels assemble on site quickly — including in the tight urban, basement, and second-floor spaces dark kitchens often occupy. Share your access constraints and target open date and we'll confirm a timeline.
Can one walk-in serve multiple delivery brands in a shared kitchen?
Yes. A commissary can share a larger walk-in with organized zones, or run separate cooler and freezer sections, depending on how operators want to separate inventory. Foster builds custom layouts with the door placement, shelving clearance, and combo configurations that fit shared operations efficiently.
Should a ghost kitchen choose a cooler, a freezer, or a combo?
Most delivery-first operations need both chilled and frozen storage, and a cooler/freezer combo typically costs 10–15% less than two separate boxes while saving floor space — a real advantage when rent is by the square foot. Foster builds combos with a shared wall between sections; use the cost calculator to compare for your volume.
Fit refrigeration to your footprint
Tell us your space, menu, and open date, and the Foster team in Hudson, NY will spec a compact, high-duty walk-in — or a combo — built for delivery-driven throughput. Custom-built since 1946.