Planning a commercial kitchen means balancing menu, space, budget, and code long before construction. These answers cover how big a kitchen should be, build costs, how to make a floor plan, exhaust sizing, staffing, and what legally defines a commercial kitchen. Figures are general ranges; verify space, ventilation, and code requirements with local health and building officials.
There is no fixed number, but a common planning rule gives the back-of-house kitchen roughly 30 to 40 percent of total floor area, or about 5 square feet of kitchen per dining seat for full-service restaurants. A small cafe kitchen might be 200 to 400 square feet, while a busy full-service kitchen runs 800 to 1,600 or more. Size follows the menu, cooking methods, storage, and volume, not the dining room alone. Undersizing the kitchen is a common, costly mistake; a kitchen size and seating planner helps sanity-check your plan.
Very small kitchens can work: ghost kitchens, food trucks, and coffee bars operate in 100 to 200 square feet, and compact restaurant kitchens function around 200 to 300. The floor is set by what your menu and code require, not by an arbitrary minimum. You still need cooking equipment with proper ventilation, refrigeration, a three-compartment warewashing sink, a separate hand sink, and often a mop sink, all with clearances. A tight kitchen limits menu complexity and throughput. See commercial kitchen size requirements for how space maps to your menu.
Building out a commercial kitchen is one of the biggest startup line items, commonly ranging from about 150 to 400-plus dollars per square foot depending on location, existing infrastructure, and how much equipment, hood, refrigeration, plumbing, and electrical work is needed. Converting an existing restaurant space is far cheaper than building a kitchen from a bare shell, where new ventilation, gas, grease interceptors, and utilities drive costs up fast. Equipment alone can run tens of thousands of dollars. Get contractor and equipment quotes early, because buildout often exceeds first-time owners' expectations.
Start by listing every piece of equipment and every function the space must hold, then arrange them to follow the natural flow from receiving to storage, prep, cooking, plating, service, and warewashing, minimizing backtracking and cross-traffic. Draw it to scale, keep aisles wide enough (commonly 36 to 48 inches, more where two people pass), and place the hood and cook line where ventilation and gas can reach. Include seating, restrooms, and ADA clearances. Most jurisdictions require a scaled plan for plan review before you build, so accuracy matters from the start.
Excel can produce a rough scaled plan on a budget: set narrow, uniform column widths and row heights so each cell equals a fixed dimension, say six inches, turning the sheet into graph paper, then use borders, filled cells, and shapes to block out walls, equipment, and seating to scale. It is fine for a first draft or a very simple layout, but it is clumsy for revisions and lacks real design libraries. For anything you will submit for plan review, a dedicated floor-plan or CAD tool, or a designer, will save time and look more professional.
Word's drawing tools can sketch a basic layout: insert shapes for walls, tables, and equipment on a page set to a defined scale, use the gridlines and alignment guides, and group elements so you can move stations around. Like Excel, it works for a concept sketch or a simple room but gets tedious for detailed, to-scale kitchen drawings and revisions. For a plan you will hand to a contractor or health department, step up to free floor-plan apps or CAD software, which include furniture and equipment libraries and keep everything to scale automatically.
A restaurant layout is the overall plan for how the whole space is organized, both the back-of-house kitchen and the front-of-house dining, bar, host, and service areas, and how people and food move through them. A good layout supports an efficient workflow from receiving to storage to prep to cook to serve to wash, keeps raw and ready foods safely separated, gives guests comfortable flow, and meets code-required clearances and exits. Kitchen layout is the back-of-house subset of this. Layout decisions are hard to change later, so they are worth getting right before construction.
Work outward from your menu: it dictates the equipment, which dictates the space, ventilation, utilities, and workflow. List every dish and the equipment and steps it needs, group equipment into stations, then arrange stations to follow the flow from receiving to service with minimal cross-traffic. Layer in refrigeration and dry storage, warewashing, hand sinks, the hood and make-up air, and code clearances. Validate the design against local health and building codes through plan review. Many operators bring in a foodservice consultant or dealer designer at this stage to avoid costly mistakes.
After the design and equipment list are set, the typical sequence is: secure permits and pass plan review; rough in plumbing, gas, electrical, and the exhaust hood and make-up air; install flooring, coved base, and washable wall and ceiling finishes; set and connect equipment; then pass health, fire, and building inspections before opening. A general contractor experienced with restaurants coordinates the trades. Build sequencing matters, since floors, walls, and utilities must go in before heavy equipment. Budget extra time, because inspections and utility work are common sources of delay.
Most commercial kitchen designers come from foodservice, culinary, interior design, architecture, or engineering backgrounds and learn the trade through equipment dealers, foodservice consulting firms, or design-build companies. Key skills are CAD and floor-plan software, knowledge of health and building codes, ventilation and utility requirements, and workflow efficiency. Professional credentials exist through foodservice design organizations, and the Foodservice Consultants Society International is a well-known body. Hands-on kitchen experience is invaluable because good design comes from understanding how cooks actually work. Many start by assisting on projects at a dealer or consultancy.
It depends entirely on menu complexity, volume, and service style, but a small operation might run one or two cooks per shift while a busy full-service kitchen staffs a line of several cooks plus prep, dish, and a chef or lead. Design the layout around realistic station counts so cooks are not colliding at peak. Because labor is a major cost, most operators target labor at roughly 25 to 35 percent of sales and staff to forecasted demand; a labor cost calculator helps you model it.
The exhaust fan and hood are sized by the airflow, measured in CFM, needed to capture heat and grease over your cooking equipment. CFM depends on hood type (wall canopy, island, or proximity), hood length, and the duty of the equipment underneath, since a fryer or charbroiler needs far more than a light-duty range. A professional calculates it to local mechanical code, and you must also provide matching make-up air so the kitchen is not starved of air. Undersized exhaust leaves a smoky, hot kitchen; oversized wastes conditioned air and energy. Have an engineer or hood supplier spec it.
Beyond good food, it comes down to systems: an efficient layout and workflow, tight prep and par-level routines, consistent recipes and portioning, disciplined food-safety and cleaning practices, and clear communication during service. Watch prime cost, food plus labor, and keep it in a healthy range for your concept, and train and retain a reliable team. Organization is the backbone, since a well-zoned kitchen with everything in its place speeds tickets and cuts waste. See commercial kitchen organization and workflow for practical setup ideas.
A commercial kitchen is one built and permitted to prepare food for sale to the public, which means it must meet health and building codes rather than residential standards. Typical requirements include NSF-listed, cleanable equipment and surfaces; commercial ventilation with a hood over cooking equipment; a three-compartment warewashing sink plus a separate hand sink, and often a mop sink; non-absorbent floors, walls, and ceilings; adequate refrigeration; and proper plumbing with backflow protection and grease handling. It must be inspected and licensed. A home kitchen, lacking these, generally cannot legally serve as one except under limited cottage-food rules.
Measure the actual space precisely, choose a scale such as quarter-inch equals one foot, and draw walls, doors, windows, and fixed features first, then place equipment and seating using their real dimensions so nothing is crammed. Keep aisles and clearances to code, mark utilities, exits, and ADA paths, and label each element. Graph paper works for a rough version, but floor-plan or CAD apps keep everything to scale automatically and make revisions painless. A to-scale, accurate plan is what health and building departments require for plan review before construction.
Yes. A diner is simply a style of restaurant, typically casual counter-and-booth service with a broad menu, and like any establishment serving food to the public it must operate from a licensed commercial kitchen that meets health and building codes. The same rules on equipment, ventilation, warewashing, and food safety apply. Terms like diner, cafe, bistro, or grill describe the concept and price point, not a different regulatory category. Whatever you call it, if you cook and sell food on site, you need a permitted commercial kitchen and the required inspections.
Professional kitchen designers typically work in CAD programs such as AutoCAD and Revit, often with foodservice-specific equipment libraries, to produce scaled, code-ready plans and elevations. Foodservice consultants and equipment dealers frequently use specialized design tools tied to manufacturer catalogs so equipment specs, utilities, and clearances are accurate. For rough concepts, operators use accessible floor-plan apps like SmartDraw or SketchUp. Whatever the tool, plans submitted for health-department plan review must be to scale and show equipment, utilities, and clearances. For a serious build, a designer using professional CAD tools usually saves money by catching problems on paper.
For most new builds or major remodels, yes. A foodservice designer or consultant translates your menu into an efficient, code-compliant layout, specs equipment and utilities correctly, coordinates the hood and refrigeration, and helps you avoid expensive mistakes that are hard to fix once built. Equipment dealers often provide design help, sometimes free with a purchase, though an independent consultant gives unbiased advice. Simple concepts or tight budgets may lean on a dealer designer plus a good contractor. Given how costly kitchen buildouts are and how permanent the layout is, expert design usually pays for itself.
Plan review is the process where your local health department (and often building department) examines your proposed kitchen plans before construction to confirm they meet code, covering layout, equipment, finishes, sinks, ventilation, plumbing, and more. You usually submit scaled drawings, a menu, and equipment specs, and you cannot legally build or open until it is approved. Building plan review into your timeline early prevents costly redesigns and delays. Design your kitchen with review requirements in mind from the start. See commercial kitchen permits and licenses for how it fits the broader permitting path.
A commercial kitchen build typically involves health-department plan review and a pre-opening health inspection, building permits for construction, plus electrical, plumbing, mechanical, and fire inspections, and often a fire-suppression and hood inspection and a certificate of occupancy. You will also need business licensing and a food establishment permit. Requirements and sequence vary by jurisdiction, and each step takes time, so plan them into your schedule early and budget for fees. Missing or late permits are among the most common causes of delayed openings. Confirm the exact list with your local authorities before you start.
Utilities are driven by your equipment list, so finalize equipment first, then total the gas BTU load, electrical loads and required circuits and voltages, and hot- and cold-water and drainage needs. Many pieces need dedicated circuits or specific voltages, and gas equipment needs adequately sized supply and shutoffs. Water heating, grease interceptors, floor drains, and backflow protection all must be sized and located. Coordinate with licensed electricians and plumbers and confirm the building's incoming service is adequate, since upgrading service is expensive. Undersized utilities discovered mid-build are a frequent, costly surprise for first-time operators.
If your kitchen has a Type I exhaust hood, you almost always need a make-up air system to replace the air the hood removes, and it must be planned alongside the hood, not added later. Without balanced make-up air, the kitchen goes negative, doors are hard to open, the hood cannot capture smoke, and pilot lights and HVAC suffer. Make-up air units need roof or wall space, ducting, and often heating for cold climates, all of which affect layout and budget. Have a mechanical engineer or hood supplier size it. See ventilation and make-up air explained.
Equipment is a major line item that varies enormously by concept, from tens of thousands of dollars for a small cafe to hundreds of thousands for a full-service kitchen with extensive cooking, refrigeration, and warewashing. Build the budget from your actual equipment list, get real quotes, and include installation, delivery, and utility connections, not just sticker prices. Decide where new versus used makes sense, and factor the hood, refrigeration, and dish machine as big-ticket items. A kitchen equipment configurator can help you scope a list before pricing it with dealers.
A mix is common. New equipment brings warranties, reliability, and energy efficiency, which matters most for hard-working items like refrigeration, cooking line, and the dish machine. Used equipment can save a lot on durable stainless items such as work tables, shelving, sinks, and some prep gear, if inspected carefully. Weigh warranty, condition, energy use, and whether parts and service are available, and confirm used gear is NSF-listed and passes inspection. Avoid used refrigeration or complex electronics unless you can verify condition. See buying used restaurant equipment for what to check.
Size refrigeration and storage to your menu, volume, and delivery schedule, not guesswork. Estimate how much cold and frozen product you hold between deliveries, then plan walk-in, reach-in, and prep-table capacity accordingly, plus dry storage shelving. Under-planning storage is a classic mistake that forces risky overstocking or too-frequent deliveries. Locate refrigeration for workflow, near receiving and prep, and account for utility and clearance needs. Leave room to grow. Tools like a walk-in cooler sizing calculator help translate your product volume into the cubic footage and equipment you actually need.
Plan the path deliveries take from the back door to storage so it is short, clean, and separate from food prep and service. Provide a receiving area with room to inspect and stage deliveries and, ideally, a scale to verify weights against invoices. Locate dry storage, walk-ins, and freezers nearby to minimize carrying, with shelving that keeps product at least six inches off the floor and away from walls and chemicals. Good receiving and storage design supports first-in, first-out rotation, food safety, and efficient inventory. Cramped or poorly placed storage slows every shift and invites spoilage and mistakes.
The frequent errors are undersizing the kitchen relative to the menu, skimping on storage and refrigeration, poor workflow that forces backtracking and cross-traffic, undersized utilities and ventilation, and forgetting code items like hand sinks, coved base, and clearances until plan review flags them. Others include buying equipment before finalizing the layout, ignoring make-up air, and underestimating buildout cost and timeline. Many trace back to planning around the dining room instead of the menu and workflow. Working from the menu outward and involving a designer or consultant early prevents most of these expensive, hard-to-reverse mistakes.
Restaurants must meet accessibility requirements, primarily in guest-facing areas: accessible entrances, routes, restrooms, seating, and counters under the ADA, which affects your overall floor plan. Back-of-house employee areas also have workplace accessibility considerations. Plan adequate door widths, turning space, reachable controls, and accessible restrooms from the start, since retrofitting is costly. Front-of-house accessibility is typically reviewed alongside building permits. Consult your architect and local building department for the specific ADA and code requirements that apply to your space, and design them in early rather than discovering them late when changes are expensive.