Commercial Kitchen & Restaurant Infrastructure Engineering
Fast-Track Mechanical and Plumbing Systems for Demanding Food Venues
Restaurants are among the most mechanically and plumbing-intensive spaces in commercial construction. A commercial kitchen concentrates high heat, grease-laden exhaust, heavy gas and electrical loads, and demanding drainage into a small footprint, all governed by strict health and fire codes. Get the ventilation, make-up air, or grease waste wrong and the space fails inspection, runs uncomfortably, or shuts down. Speed matters too, because restaurant operators are paying rent while the build-out crawls toward opening day.
Apex Grid engineers restaurant infrastructure for both code compliance and fast-track delivery. We size exhaust hoods and make-up air to balance the kitchen, design grease waste and interceptors that satisfy the health department, and coordinate the gas, electrical, and water upgrades a busy kitchen demands. Working the mechanical, plumbing, and electrical disciplines together—against the plumbing, mechanical, and fire codes from day one—produces a permit-ready package that keeps the buildout moving toward opening.
Quick Answers
Restaurants & Food Service engineering questions
What engineering disciplines are coordinated for Restaurants & Food Service projects?
What information helps define a Restaurants & Food Service engineering scope?
Which codes and standards may apply to Restaurants & Food Service projects?
High-Performance Hood Ventilation, Grease Exhaust & Make-Up Air Systems
Kitchen ventilation is a balanced system, not just an exhaust fan. We size Type I grease hoods to capture and contain effluent per NFPA 96 and IMC requirements, selecting exhaust volumes based on appliance duty and hood style, then routing grease ducts with proper slope, clearances, and cleanouts to a listed rooftop exhaust fan. Make-up air is engineered to replace exhausted air—typically tempered—so the kitchen stays slightly negative to the dining room without starving the appliances or slamming doors. We integrate demand-control ventilation where appropriate to cut energy, and coordinate the required fire-suppression system per UL 300 with the hood, gas shutoff, and building fire alarm so the whole assembly passes inspection as one system.
Code-Compliant Plumbing, Grease Interceptors, and Drainage Planning
Restaurant plumbing has to handle grease, high volumes, and health-department scrutiny. We size the sanitary system and grease interceptor—hydromechanical or gravity—per the IPC or UPC and local sewer-authority rules, locating it for access and pump-out while keeping food-prep waste separated from sanitary. Floor drains, floor sinks, and indirect waste receptors are laid out for dishwashers, ice machines, prep sinks, and steam equipment with proper air gaps to prevent contamination. Domestic hot water is sized for peak dish and sanitation demand, often with booster heaters at the dish machine. Gas piping is sized per the fuel-gas code for the connected appliance load, with shutoffs coordinated to the hood suppression system.
Fast-Track Utility Inflow Conversions for Gas, Electric, and Water Infrastructure
A space converting to restaurant use rarely has the incoming utilities a kitchen needs. We evaluate existing gas service and meter capacity against the connected appliance load and coordinate upsizing with the utility when demand exceeds supply. Electrical service is checked against kitchen equipment, refrigeration, HVAC, and exhaust loads through an NEC Article 220 calculation, with panel, transformer, or service upgrades identified early. Domestic water supply is verified for fixture-unit demand and simultaneous peak use. Because these utility upgrades carry the longest lead times, we flag them at the outset and coordinate with the landlord and utility so the permit and construction schedule isn't held hostage by an undersized incoming service.
Integrated Discipline Scope for Restaurants & Food Service Projects
One coordinated engineering team across structural, MEP, civil, and geotechnical — one point of accountability from concept through permit.
Structural Engineering
Restaurant structural scope centers on supporting heavy equipment and rooftop mechanical. We design or verify support for rooftop exhaust fans, make-up air units, and condensing units, and detail roof openings for grease-duct penetrations with proper framing.
Interior work may include new openings, walk-in cooler pads, and support for pizza ovens or other concentrated loads within existing framing.
- Rooftop support and dunnage for exhaust and make-up air units
- Roof opening framing for grease-duct penetrations
- Equipment pads and support for walk-ins and heavy ovens
- New openings and header design for kitchen and dining layouts
MEP Engineering
MEP is the heart of restaurant engineering. We design kitchen exhaust and tempered make-up air, dining-room HVAC and comfort, grease and sanitary plumbing, high-demand domestic hot water, gas distribution, and the electrical service for the full equipment package.
The hood fire-suppression, gas shutoff, and fire-alarm interfaces are coordinated so the life-safety systems function and inspect as an integrated whole.
- Type I hood exhaust and tempered make-up air per NFPA 96 / IMC
- Grease and sanitary plumbing with interceptor sizing per IPC/UPC
- Gas piping sized to appliance load per the fuel-gas code
- Electrical load studies and equipment power per NEC Article 220
- Hood suppression, gas shutoff, and fire-alarm integration
Civil Engineering
Freestanding and pad restaurants need site engineering. We design grease-interceptor access, sanitary and water connections, drive-through geometry, trash and grease-bin enclosures, and parking with accessible routing.
Site grading and stormwater are designed to local and NPDES standards, coordinated with the building's utility connections and outdoor dining areas.
- Exterior grease interceptor access and sanitary connections
- Drive-through lane and stacking geometry
- Trash, grease-bin, and utility enclosure design
- Site grading, drainage, and stormwater to NPDES
Geotechnical Engineering
For freestanding restaurants, we coordinate subsurface investigation to establish bearing capacity and settlement for slab-on-grade and foundations, and to guide pavement section design for drive-through and parking areas.
Where an existing tenant space adds heavy walk-ins or equipment on grade, we confirm the subgrade and slab can carry the concentrated loads.
- Bearing capacity and settlement for slabs and foundations
- Pavement section design for drive-through and parking
- Subgrade evaluation for heavy walk-in and equipment loads
- Seismic site classification for ASCE 7 design
Specialty Project Types
Facility Types We Engineer
- Full-service and fine-dining restaurants
- Quick-service and fast-casual concepts
- Drive-through and pad-site restaurants
- Ghost kitchens and commissary facilities
- Bars, breweries, and tasting rooms
- Cafes, bakeries, and coffee shops
- Food-hall and food-court vendor stalls
- Hotel and venue banquet kitchens
Project Types
- New freestanding restaurant construction
- Restaurant tenant improvements and fit-outs
- Change-of-occupancy kitchen conversions
- Kitchen renovations and equipment upgrades
- Concept remodels and rebranding
Deliverables
- Permit-ready, PE-sealed MEP drawing sets
- Kitchen exhaust and make-up air calculations
- Grease-interceptor and plumbing fixture-unit sizing
- Gas and electrical load studies
- Hood fire-suppression coordination documentation
- Energy code compliance documentation
- Structural support details for rooftop equipment
- RFI responses and construction administration support
Codes & Standards We Design To
Restaurants & Food Service projects live and die by code compliance. These are the standards our drawings and calculations are built around.
The standard for commercial cooking ventilation governs grease hood, duct, and exhaust design and the clearances and cleanouts we detail.
The kitchen fire-suppression standard governs the wet-chemical system that must be coordinated with the hood, gas shutoff, and fire alarm.
The International Mechanical Code establishes exhaust rates, make-up air, and duct requirements for commercial kitchen ventilation systems.
The plumbing code governs grease-waste separation, interceptor sizing, indirect waste, and drainage for food-service fixtures.
The fuel-gas code governs sizing and installation of gas piping serving the connected commercial cooking appliance load.
The adopted food code and local health rules drive finish, drainage, and equipment coordination for sanitary, inspectable kitchens.
Quick Answers
Restaurants & Food Service Engineering Questions
- What engineering disciplines are coordinated for Restaurants & Food Service projects?
- Structural Engineering, MEP Engineering, Civil Engineering, Geotechnical Engineering are coordinated around the facility program, applicable codes, and permit deliverables.
- What information helps define a Restaurants & Food Service engineering scope?
- The facility type, project type, existing conditions, jurisdiction, schedule, and required deliverables establish the basis for a project-specific engineering scope.
- Which codes and standards may apply to Restaurants & Food Service projects?
- Applicable requirements can include NFPA 96, UL 300, IMC, IPC / UPC, IFGC / NFPA 54, FDA Food Code. The adopted editions and amendments must be confirmed with the authority having jurisdiction for each project.
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