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How Much Space Is Needed For a Residential Elevator?
Home elevators need between 5 and 25 sq. ft. of floor space for drive components, a hoistway, and an elevator cab.
Updated:
At a glance:
- The average residential elevator installation has an overall footprint of 5′ x 5′ to 5′ x 7′ for the hoistway (if required), 7.5′ to 9′ of overhead clearance, and 3′ x 4′ (12 sq. ft.) for the elevator cab.
- Space requirements for the new construction largely depend on the type of elevator, with pneumatic elevators taking up as little as 30” (5 sq. ft.) and requiring no machine room. Hydraulic elevators, on the other hand, require a hoistway, a pit, and a separate machine room.
- Home elevators that require a machine room need an additional 4′ x 4′ to 5′ x 7′ (16–35 sq. ft.) of space and a minimum ceiling height of 7’.
What’s Important: Elevator Dimensions That Matter
Traditional home elevators, like traction or hydraulic systems, usually require at least 5’ x 5’ (25 sq. ft.) of floor space for installation. However, many shaftless elevators require less than 15 sq. ft., saving considerable space. To be more specific, the four main measurements to keep in mind are:
- Elevator shaft (hoistway): Not every elevator requires a shaft, but those that do need a space measuring between 5′ x 5′ and 5′ x 7′ (25–35 sq. ft.) on each floor.
- Pit depth: Pit-less options do exist, but most home elevators require this recessed area beneath the lowest landing point for safety, structural integrity, and maintenance. Typical measurements are 6″ to 12″, with some hydraulic systems requiring deeper pits.
- Cab size: The part of the elevator you ride in, with residential sizes usually ranging from 3’ x 4’ (12 sq. ft.) on the smaller end to 5′ x 6′ (30 sq. ft.) for wheelchair-accessible cabs. The average automatic door width for cabs is 32”, but can be anywhere from 28″ to 36″.
- Machine room: Most shaftless elevators don’t need a separate machine room, but for those that do, the machine room houses the drive system, control panel, and pump (hydraulic). These rooms typically need between 4′ x 4′ and 5′ x 7′ of floor space (16–35 sq. ft.) and a minimum ceiling height of 7′.
Space Requirements by Type of Residential Elevator
When it comes to space requirements, every type of elevator is unique. For example, shaftless elevators are more cost-effective when you’re trying to retrofit a system into a small space (less than 25 sq. ft.) but have a limited load capacity compared to hydraulic lifts.
Overall, seniors will need to gauge how much space they have vs. their mobility needs. Here are the measurements to consider:
Traction Elevator
- Hoistway: 4′ x 6′ – 5′ x 7′ (25–35 sq. ft.)
- Pit depth: 6″ – 12″
- Cab size: 3′ x 4′ (12 sq. ft.) – 5′ x 6′ (30 sq. ft.)
- Machine room: 4′ x 4′ – 5′ x 7′ of floor space (16–35 sq. ft.) or 9′ of overhead clearance
Traction elevators work by having an electric motor pull a system of steel cables and counterweights over a sheave (all located inside the hoistway). One end of the cables connects to the elevator cab, while the other connects to a counterweight that balances the cab, reducing energy consumption. This design allows for impressive travel height but demands a lot of space for installation. Sometimes machine-room-less (MRL) designs are available but are also more costly to maintain.
Hydraulic Elevator
- Hoistway: 5′ x 5′ – 5′ x 7′ (25–35 sq. ft.)
- Pit depth: 6″ – 12″
- Cab size: 3′ x 4′ (12 sq. ft.) – 5′ x 6′ (30 sq. ft.)
- Machine room: 4′ x 4′ (16 sq. ft.) minimum
One of the oldest types of elevators, these installations also require a hoistway, pit depth, and usually a separate machine room. Instead of using friction to lift the cab, they use a hydraulic piston housed in a cylinder beneath or beside the cab, powered by an electric pump, to pressurize fluid that pushes the cab upward. Likewise, when the fluid is released, gravity can gently lower the cab. They have one of the most impressive weight capacities but also take up a lot of space.
Winding Drum Elevator
- Hoistway: 4′ x 5′ – 5′ x 7′ (20–35 sq. ft.)
- Pit depth: 6″ – 12″
- Cab size: Up to 12 sq. ft. (typically 3′ x 4′)
Operating like a human-sized dumbwaiter, winding drum elevators don’t require a machine room but still need a hoistway and pit to function. Similar to traction elevators but without a counterweight, they rely on an electric motor in a friction-based system that wraps and unwinds steel cables around a grooved steel drum. The motor winds the cable up and unwinds it down. These installations are usually cheaper than the previous two options, but not the most space-efficient.
Pneumatic Vacuum Elevator (PVE)
- Cab size: 20” – 44” diameter (less than 15 sq. ft.)
PVE systems are far more space-saving than previous options because the cab operates within a self-supporting tube. This means no hoistway construction between floors is required. The use of air pressure differentials above and below the cab also eliminates the need for a machine room. They require an average of 12 sq. ft. (3’ x 4’) of available space, with some having a footprint as small as 7 sq. ft. However, they do come with travel-height and load-capacity limitations.
Through-the-floor Elevator
- Cab size: 2’ x 2.5’ – 4′ x 4′ (less than 16 sq. ft.)
Through-the-floor elevators are among the simplest installations, requiring only a small cutout between floors rather than a hoistway, pit, and machine room. Once the cab is installed, it travels on an optional guide rail system through the cutouts. Required space often ranges between 3’ x 4’ and 4′ x 4′ (12 to 16 sq. ft.), but some are less than 10 sq. ft. Typically, they can only travel between two floors.
Always Pay Attention To Local Building Codes
National standards like ASME A17.1 and the Americans with Disabilities Act (ADA) set baseline accessibility expectations in the US, but ultimately, every state and county is different. For example, most states require residential elevator cabs to be 18 sq. ft. or less, with anything larger classified as a commercial elevator. We recommend contacting your local city or town building department for more information about:
- Permits and local zoning laws
- Required inspection and testing post-installation
- Cab size limits and wheelchair-accessible door width requirements
- Fire safety and emergency communication requirements
- Seismic design requirements in earthquake-prone zones
- Electrical and load-bearing requirements
- Historic preservation restrictions (if applicable)
- Insurance and liability considerations tied to code compliance
- Homeowners association (HOA) rules
Failing to comply with local regulations can lead to fines or costly modifications later on, which is why it’s so important to work with both your city/town and a company that understands the area.
Our Takeaway: Pay Attention To The Measurements
How much space you need for a home elevator varies widely, so the best way to ensure a proper fit is to pay attention to the measurements. Take measurements of the area where the installation will go first, then browse trusted elevator company websites for detailed information about each unit’s measurements. When you have no more than two floors and don’t require wheelchair accessibility, shaftless options are almost always the most space-saving choice.
Frequently Asked Questions (FAQs) About Space Needed for a Residential Elevator
The typical range is between 5 and 25 sq. ft., but the amount of space your new home elevator will take up ultimately depends not only on its drive system but also on the specific brand/model. For example, a new traction elevator will need not only floor space for the elevator cab but also 25–35 sq. ft. for the hoistway, 6” to 12” for the pit, and a minimum of 16 sq. ft. for a machine room. Conversely, most PVEs only need less than 15 sq. ft. for the entire system.
If you need custom measurements, many elevator companies can alter the measurements of certain models. Keep in mind that such changes can add significantly to the overall cost.
Yes, in many states and counties, residential elevators have limitations, especially compared to commercial installations. For example, many states require cabs to be 18 sq. ft. or less. If you’re not sure what the regulations are in your area, check your local city or town building department website.
Sometimes. More space-demanding types, like hydraulic elevators, do have a higher average weight capacity, but most shaftless elevators can also be designed to accommodate wheelchairs, scooters, and other mobility aids seniors rely on.
No, home elevator dimensions are not the same throughout the US, even though ASME A17.1 and the Americans with Disabilities Act (ADA) do set common baseline standards. Many regions have unique cab size limits, height restrictions, and other requirements based on which elevator works best locally.
The first step is measuring where the elevator will go, including the available floor space, ceiling height, and any adjoining floors it will need to pass through. Remember, these general guidelines can help you get a rough idea of feasibility; professional measurements are essential before finalizing any installation.
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