How big should an in-office dental lab be?
On this page
- Key facts
- What size lab do you actually need?
- Where should the lab go?
- What equipment goes in a dental lab?
- What ventilation does a 3D printer need?
- What utilities does the lab need?
- How should the workstations be designed?
- Lab planning checklist
- Which free tools help with this?
- How FloorStack helps
- Free tools for this step
- Frequently asked questions
- Sources
Size the lab by the people and equipment in it. For a production lab with technicians, one Henry Schein consultant uses 150 square feet for the first technician plus 50 square feet for each additional one (Henry Schein). In 2026, a chairside lab for models, trays and 3D printing can be smaller, but it still needs ventilation, water and power.
Key facts
| Item | Figure or guidance | Source |
|---|---|---|
| Production lab size | 150 sq ft for the first technician + 50 sq ft per additional technician | Henry Schein (Tholen) |
| Zones | Wet and dry areas, sized to equipment and workstations | Henry Schein (Tholen) |
| 3D printer room (Formlabs) | Freely circulating air; HVAC with at least 3 air exchanges per hour; no closets | Formlabs |
| Traditional counter height | 34 inches (2002 guidance) | Dentistry Today (2002) |
| Cabinetry | Lab is a wet environment; avoid particle-board cabinets | DentalEZ |
| Placement | Clinical zone, near sterilization and operatories | Dental Economics (Mar 2021) |
What size lab do you actually need?
Start with a list of the work you'll do in-house. DentalEZ recommends brainstorming every procedure with your staff, because even small tasks may need dedicated space, and casting or milling crowns brings a burnout oven, casting well, wax printer, milling unit and sintering furnace, each with its own air, gas, electrical or water needs (DentalEZ).
| Lab type | Typical work | Sizing approach |
|---|---|---|
| Chairside support | Pouring models, trimming, trays, whitening trays, small repairs | Counter run with sink and trap, plus model trimmer |
| Digital chairside | 3D printing, wash and cure, milling | Add printer, wash, cure and mill footprints with clearances, in a ventilated room |
| Production lab with technicians | Crowns, dentures, full fabrication | 150 sq ft for the first technician + 50 sq ft for each additional (Henry Schein) |
To try lab sizes and positions on your own suite before paying for drawings, the free dream-practice builder (coming soon) is planned for sketching rooms, operatory counts and layouts.
Where should the lab go?
In the clinical zone, close to the operatories it serves. Dental Economics groups the laboratory with operatories, consultation, sterilization and clean supply in the clinical zone (Dental Economics). In one published 5,000-square-foot pediatric plan, sterilization and the lab share a central core between two treatment wings (Henry Schein Integrated Design Studio).
Keep lab dust, plaster and resin away from clean sterile storage. If you share a room, separate the zones and keep the CDC's dirty-to-clean instrument flow intact; see where the sterilization center should go.
What equipment goes in a dental lab?
Benco's startup checklist lists a 3D printer, lathe and hoods, model trimmer, plaster bin and plaster trap, vacuum former and vibrator for the laboratory (Benco Dental). A 2002 Dentistry Today article describes the traditional basics the same way, a counter with sink and plaster trap, a polishing lathe, vibrator and model trimmer, and notes most in-office labs were designed as an afterthought and often doubled as storage (Dentistry Today, 2002). Digital workflows add printers, wash and cure units, and mills. For the full list by room, see the dental office equipment list.
What ventilation does a 3D printer need?
Formlabs says its resins don't need special ventilation, but printers and wash units should run where air circulates freely, never in closets or small storage rooms, and recommends HVAC with at least three full air exchanges per hour. It also says to follow building code guidance for a well-ventilated occupied space and to check each material's Safety Data Sheet (Formlabs). Wash solvents such as isopropyl alcohol are flammable, so plan closed storage away from heat (Formlabs). Other brands' requirements differ; use the SDS for the materials you buy.
What utilities does the lab need?
- Water and drain with a plaster trap at the sink (Dentistry Today, 2002).
- Compressed air for handpieces, blasting and some mills. Add it to your compressor sizing; the free compressor & vacuum sizing calculator (coming soon) is planned for this step, and the manufacturer's specs remain the authority.
- Dust collection at grinding workstations. DentalEZ describes lab benches with a dust collector, suction hose and face shield (DentalEZ).
- Power for ovens, furnaces and mills, often on dedicated circuits; check each manufacturer.
- Network for printers and mills that receive files from your scanner.
How should the workstations be designed?
DentalEZ recommends ergonomic, adjustable benches (desk height, stool, armrests, dust shield), shelving for case pans within reach, and color-corrected lighting for shade matching. It also warns that labs are wet environments where wood or particle-board cabinets warp, so specify durable lab casework (DentalEZ). Dentistry Today's 2002 article recommends sit-down workstations for most detailed tasks, with standing areas for model trimming (Dentistry Today, 2002).
Lab planning checklist
- List every in-house procedure and the equipment it needs
- Size the room: workstations + equipment footprints + clearances
- Separate wet (sink, trimmer, plaster) and dry (bench, digital) zones
- Ventilated room for printers and wash units; no closets
- Sink with plaster trap
- Compressed air, dust collection and dedicated circuits where required
- Network drops for printers and mills
- Moisture-resistant casework
Which free tools help with this?
FloorStack Studio (live, free plan) places every device on your floor plan and gives you a device schedule with rooms, ports and cable lengths (FloorStack FAQ).
How FloorStack helps
FloorStack is a dental build-out platform that places the lab, its equipment and its utilities on the same plan as the operatories and mechanical room. Start at the Dental Office Design hub, and see how much space a dental office needs and dental mechanical room planning.
Related guides: dental office HVAC and dental office plumbing requirements.
Free tools on the FloorStack dental build-out platform for this step: Dream-practice builder (free tool, coming soon) and Compressor & vacuum sizing calculator (free tool, coming soon). Also use FloorStack Studio (live, free plan).
Free tools for this step
- Dream-practice builder (free tool, coming soon): sketch rooms, operatory counts and layouts on your own suite before you pay for drawings.
- Compressor & vacuum sizing calculator (free tool, coming soon): size the compressor and vacuum to your chair count; confirm with your dealer.
- Studio (live, free plan): map every device and drop on your floor plan.
Frequently asked questions
How many square feet does an in-office dental lab need?
For a production lab, one consultant uses 150 square feet for the first technician and 50 square feet for each additional technician. Chairside labs vary with equipment.
Can a 3D printer go in a closet?
Formlabs says no. Its printers should run in a room with freely circulating air and HVAC providing at least three air exchanges per hour.
Where should the lab be located?
In the clinical zone near the operatories, often next to sterilization, with lab dust kept away from clean storage.
What equipment does a basic dental lab need?
Common items are a sink with plaster trap, model trimmer, lathe, vibrator, vacuum former and, increasingly, a 3D printer.
Does the lab need compressed air?
Often, for lab handpieces, blasting units and some mills. Include it when sizing the compressor.
What cabinets should a dental lab have?
Moisture-resistant lab casework. One manufacturer warns that wood and particle-board cabinets warp in a lab's wet environment.
Sources
- FloorStack: Frequently asked questions
- Henry Schein: Start-up Specialty Practice, What to Know Before You Break Ground (Mark Tholen, DDS)
- Formlabs: Safety with Formlabs SLA Products
- DentalEZ: Dos and Don'ts for Your Dental Lab Workstation (Nov 2021)
- Dentistry Today: Designing the Dental Office Laboratory (Mar 2002)
- Benco Dental: Starting a Dental Practice Guide (PDF)
- Dental Economics: Designing the Dental Practice of the Future, Efficiency, Infection Control, and Flow (Mar 2021)
- Henry Schein Integrated Design Studio: Space Saving Solutions in a Pediatric Practice (Mar 2023)
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