Planning and designing an elevator is a highly rewarding task, but it is far from easy. If you are considering designing an elevator for your building, this guide will help you raise all the important questions that need to be considered.
Elevator Design – Key Things You Need to Consider
1. How can I optimize space usage in the elevator?
When designing an elevator, the first thing to think about is how to use the available space efficiently, especially in buildings with limited space. You need to make sure you know the required size for the elevator shaft and how to make sure the elevator works smoothly without taking up too much of the building. You could consider using a compact elevator design or a modular elevator to save space and still provide good service. If you’re replacing an elevator in an older building, make sure to check if the existing shaft can work with the new elevator or if it needs to be changed or expanded.
The design should not only meet the regular passenger needs but also be prepared for emergencies. By planning the elevator’s entrance and exit well, you can reduce wait times and make the elevator more efficient.
2. What are the weight and speed requirements for the elevator?
Another important part of elevator design is weight capacity and speed. The weight and speed of the elevator should change based on the type of building and how many floors there are. For example, in a tall building, the elevator needs to be faster to make sure passengers can move up and down quickly. But in a low-rise building, slower speeds and a reasonable weight limit might be enough.
Also, think about the weight the elevator needs to carry based on its use. In a commercial building, the elevator may need to carry both people and goods, while in a home, it can be sized for just the number of family members.
3. How do I ensure the elevator’s safety?
Safety in elevator design is very important, especially in tall buildings. First, make sure the elevator doors and control systems meet safety standards. It should also have emergency braking systems and speed protection. The control system should also have emergency features, like an evacuation system and an emergency phone.
To improve safety further, you could add advanced technology, like smart elevator systems, that adjust the elevator’s operation based on the building’s needs. This helps reduce waiting times and increases safety.
4. How do I balance the elevator’s looks and functionality?
While functionality is the main focus when designing an elevator, you also need to think about its appearance. Especially in high-end commercial buildings and luxury homes, the elevator’s look is an important part of the building’s style. You should choose materials, colors, and designs that fit with the building’s overall aesthetic, but that are also practical.
For example, you might use high-quality tempered glass, aluminum frames, and eco-friendly materials to make a modern and durable elevator design. Paying attention to the interior design, like lighting, flooring, and wall decorations, can also make the elevator space look better.
5. What are the smart features of the elevator?
As technology advances, smart elevators have become popular in modern buildings. Besides basic operation and control features, smart elevators can have additional functions like facial recognition, voice control, and remote monitoring. For commercial buildings, smart elevators improve user experience and can help optimize elevator efficiency by using data analysis.
Also, smart elevators can automatically adjust to the building’s needs, reducing crowdedness during peak hours and improving efficiency. To make these features work, the elevator design needs to be well integrated with the building’s smart systems.
How to Choose an Elevator?
Types of Elevators
There are many types of elevators, and they can be classified based on different standards. Here are some common types of elevators:
Classified by Purpose
Passenger Elevators
Passenger elevators are the most common type in most residential and office buildings. They are mainly used for vertical transportation of people. They are usually located near stairs or in the core area of the building, needing to match the flow of people in the lobby and hallways.
The weight capacity and cabin size of the passenger elevator should be determined based on the building’s use and the expected flow of people. For regular residential buildings, elevators for 6-13 people are common, while taller office and commercial buildings need larger elevators with higher weight capacity and faster speeds.
Fire Elevators
Fire elevators are designed specifically for firefighting rescue and emergency evacuation. They are usually required to go directly to the outside or to a safe floor and have a dedicated lobby and reliable fire power supply.
Unlike regular passenger elevators, fire elevators have specific requirements for pit depth, top floor height, fireproof shaft, and lobby space. If enough space is not reserved during the building design stage, problems may arise later, such as “the construction is done, but the elevator cannot be installed according to regulations.”
Cargo and Medical Elevators
Cargo elevators are used to transport goods, furniture, trash, etc. They are usually located in the logistics or underground parking areas, separated from people traffic.
Medical elevators need to consider the size of hospital beds, stretchers, and turning radii. During the planning stage, the size of the cabin and shaft should be determined based on the “bed size + caregiver activity space.”
These elevators often have stricter requirements for ceiling height, door size, and lobby width. Adding them later could involve significant structural changes.
By Drive System
Elevators can be categorized based on their drive system, such as traction elevators, hydraulic elevators, and screw elevators.
Traction Elevators
These are the most common type in high-rise buildings, using steel cables and pulley systems for movement. Traction elevators provide smooth and quiet operation, making them ideal for multi-story buildings, especially in commercial and residential settings.
Hydraulic Elevators
Hydraulic elevators use a hydraulic system to lift and lower the elevator. They are typically used in low-rise buildings. Hydraulic elevators are cost-effective and offer smooth operation, making them ideal for buildings with fewer floors or those with space constraints.
Screw Elevators
These use a screw mechanism to move the elevator. They are compact and take up little space, making them ideal for small buildings or home elevators.
Factors to Consider When Choosing an Elevator
Designing an elevator isn’t just about choosing a model. It must take into account the type of building, its use, and traffic flow to ensure the right number of elevators, their capacity, layout, and speed.
Building Type and Peak Demand
The type of building is key to determining the vertical transport system needed. Population density, traffic patterns, and peak demand all affect elevator design. In office buildings, peak times are often predictable (like during rush hours), so elevator demand tends to be concentrated. In places like theaters, departure times are fixed, but arrival times are flexible, so the elevator system needs to be highly adaptable.
Traffic flow is an important consideration in elevator design. By analyzing the movement of people within the building, designers can predict elevator demand during peak periods. On average, in the busiest five minutes, elevators need to handle 12%-15% of the building’s population, but modern practices show actual figures closer to 10%-12%. For special events (such as large exhibitions or concerts), designers may need to account for higher peak demand during one or two minutes.
Based on this, the number, size, and speed of elevators should be determined to avoid overcrowding and reduce wait times.
Elevator Capacity and Size
Elevator capacity is chosen based on the building’s usage and the number of people. If a building is expected to hold a large number of people and needs fast service, one elevator per 150-200 people is appropriate. For buildings with moderate service needs, one elevator per 250-300 people is sufficient.
When determining the elevator capacity, the size of the cabin should also be considered. Wide cabins are ideal for high-traffic buildings because they can carry more passengers and offer a faster loading experience. On the other hand, deep cabins are more suitable for elevators that need to accommodate special requirements, such as wheelchair access.
Traffic Flow
Effective traffic flow management is key to elevator design. Accurately predicting and managing the frequency of elevator use can improve efficiency during peak times. By analyzing how people move throughout the building, designers can optimize the number, layout, and speed of elevators, avoiding overcrowding and delays.
During peak periods, passenger flow patterns can be predicted using simulation tools. Based on these results, designers can optimize the elevator configuration, improving the overall efficiency of the building.
User Behavior
Understanding user behavior is essential in elevator design. Different groups of users have different needs. For example, is there a need for an elevator to accommodate people with mobility challenges? Do you need elevators that can transport large items in a commercial building? These questions must be fully considered at the design stage.
Elevators inside the building often need to transport different types of items. Commercial buildings may need elevators for packages and documents, while healthcare buildings must consider the transport of hospital beds and medical equipment. Based on these varying needs, the elevator’s size and functionality should be adjusted accordingly.
Building Space and Elevator Space
The elevator shaft and machine room dimensions must match the type and use of the elevator. For passenger elevators, the pit depth should typically be at least 1100mm, with a clear height of 3400mm. For buildings with limited space, the design can consider utilizing existing structures, such as adding ramps or optimizing the pit space.
For buildings with existing elevator shafts, on-site inspection is recommended to ensure the existing structure can support the new elevator installation, avoiding unnecessary costs later.
Drive System
The type of drive system affects elevator performance and suitability. Common drive systems include:
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Hydraulic Elevators: Suitable for low-rise buildings, simple and low-cost.
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Traction Elevators: Ideal for high-rise buildings, offering smooth operation and high efficiency.
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Machine Room-Less Elevators (MRL): Save space and are energy-efficient, making them perfect for modern buildings.
When choosing a drive system, factors such as building height, space requirements, and frequency of use should be considered to ensure efficient operation.
Safety and Fire Requirements
Elevators must meet strict safety and fire standards based on the size and function of the building. For high-rise buildings, fire elevators are often required. These elevators should have features like fireproofing, smoke-proofing, emergency power supplies, and communication systems to ensure they continue to function during an emergency.
Additionally, the number of elevators and fire elevators should meet related standards, determined by the building’s number of floors and total area.
For a more detailed guide on fire elevator configurations, please refer to
What is a Fire Elevator
We will discuss the technical requirements and installation standards for fire elevators in various types of buildings.
How to Design the Elevator Shaft
When designing the elevator shaft, the core elements to focus on are the shaft space, power supply, and structural foundation.
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Shaft Space
Shaft dimensions: A typical home elevator shaft size is about 1000mm × 1300mm, and can be adjusted based on the number of people and wheelchair needs.
Ceiling height and top floor height: The net height of each floor and the reserved height for the top floor (usually about 3000mm) will affect elevator type selection.
Pit: Most traction or hydraulic home elevators require a pit depth of 150-300mm. If a pit cannot be excavated, a pitless solution or a small ramp can be used.
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Power Supply
Ensure that 220V or 380V power is available at home;
Reserve a separate power circuit and switch box for the elevator;
Elevators usually have low power consumption, but their starting current is high, so it is necessary to have a professional electrician follow the electrical plan.
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Structure and Doors
The foundation and floors must meet the elevator load requirements, typically verified by structural engineers;
Reserve proper door openings on each floor to avoid conflicts with beams or pipes;
If using an external steel structure shaft, make sure the foundation and connections are properly designed.
How to Design the Elevator Station
When designing the elevator station, several factors must be considered, including the layout, location, and size of the elevators.
Common Elevator Layout Methods
The layout of the elevator directly affects the building’s traffic flow and passenger experience. A well-planned elevator layout ensures minimal walking distance from the entrance to the elevator and avoids potential traffic bottlenecks and space wastage. Depending on the building’s needs, user flow, and function, different layout strategies can be used.
2 Car Lift Layout
This layout is suitable for low-demand areas, such as small office buildings, hotels, and residential projects. The elevator width is typically 5.5 meters, depth 5.6 meters, and the waiting area width is about 3 meters, providing around 31 square meters of space, suitable for buildings of approximately 90,000 square feet. This layout helps distribute elevator load effectively, preventing overcrowding during peak times and ensuring basic vertical transportation efficiency.
3 Car Lift Layout
Ideal for buildings with medium traffic, such as large office buildings or medium-sized hotels. The triple-car lift layout typically has a width of 8.2 meters, depth of 5.6 meters, and a total area of around 46 square meters. It suits buildings of approximately 135,000 square feet. This configuration can accommodate more passengers during peak times and improve transportation efficiency.
4 Car Lift Layout
This layout is often used in buildings with moderate load, such as large office buildings or commercial centers. Typical dimensions are 10.9 meters in width, 5.6 meters in depth, and a total area of 61 square meters, suitable for buildings of approximately 180,000 square feet. This layout provides ample space for both waiting areas and the elevators, meeting daily and peak demands for smooth operation.
6 Car Lift Layout
Used in large buildings or facilities with high passenger traffic, such as large hospitals or shopping malls. The layout typically has a width of 12.7 meters, depth of 7.3 meters, and an area of 92 square meters, suitable for buildings of around 360,000 square feet. This layout offers higher load capacity and can handle more complex peak traffic, ensuring quick evacuation and smooth operation.
How to Choose a Suitable Elevator Installation Location
While every building’s layout is different, there are reliable design principles to help choose an elevator location that is both convenient and safe. A good layout ensures smooth vertical traffic flow, while poor planning can lead to issues such as fire elevator pit depth problems, noise from the machine room disturbing residents, or even compensation costs.
Place it near the entrance and stairs.
In most projects, the ideal elevator location is near the main entrance and main stairs.
In residential projects, it’s recommended to place the elevator next to the unit door or public lobby so that residents can see the elevator and stairs right after entering.
In office and commercial projects, elevator groups are usually concentrated in the core area, forming a “traffic hub” with the lobby, evacuation stairs, and public restrooms.
This helps:
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Reduce walking distance from the entrance to the elevator, improving efficiency.
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Ensure that the fire elevator lobby aligns properly with the evacuation stairs and safe floors, meeting regulations.
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Concentrate structural load-bearing elements, shaft spaces, and mechanical and electrical risers, making the structure and pipelines clearer.
Floor Plan Lobby and Elevator Design
Architectural Section
Left or Right of the Stairs
Once you’ve decided on the combination of elevator and stairs, the next question is: should the elevator be to the left, right, or directly across from the stairs?
There is no single answer, but you can follow these principles:
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In apartment buildings, it’s common to have one side with an elevator and the other side with stairs, both facing the corridor, so residents can enter from the same direction.
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In office buildings, multiple elevators are often lined up on one side, with stairs and equipment rooms on the other, forming a symmetrical core area.
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For buildings needing separate passenger and freight flow (such as passenger elevators and freight elevators), it’s best to avoid mixing elevators with different functions in the same small space.
More importantly: don’t sacrifice lobby space, evacuation width, or the opening direction of fire doors for symmetry.
Elevator design floor plan for residential project
Ensure the Elevator Is Close to Main Flow Areas
Ideally, the distance from the elevator hall to frequently used spaces should be short.
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In residential buildings, the distance from the elevator hall to the resident’s door should be kept within a reasonable range, avoiding long corridors after the elevator doors open.
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In office buildings, the elevator hall should face the open office entrance or main public area, not through narrow, winding back corridors.
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For projects with underground parking, elevators serving the basement should have clear and well-lit paths from the parking spaces to the elevator hall, avoiding equipment rooms or narrow spaces.
A simple test: the number of steps from the elevator to the main functional space should not be significantly more than the steps from the stairs to the same spot.
Check for Accessibility in the Space
Before finalizing the elevator location, simulate scenarios such as elevator door openings, waiting areas, and peak passenger flow.
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The elevator door should not block the main evacuation passage when opened.
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Avoid conflicts between elevator hall doors and stairwell or equipment room doors in small spaces.
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Ensure the waiting area can accommodate enough people without blocking evacuation routes during peak times.
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The elevator hall should have enough turning radius to accommodate wheelchairs, stretchers, or trolleys (especially for medical or freight elevators).
In L-shaped or U-shaped plans, door interference is difficult to avoid, but at least ensure:
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When the elevator door is fully open, the evacuation width meets the required standards.
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There is a clear, accessible path from the waiting area to the safety exit.
Accessible elevator lobby design floor plan
For External or Scenic Elevators
When the elevator is outside the traditional core area, mounted on the building’s facade or in a courtyard, special care is needed:
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Consider how the elevator integrates with the building’s facade, curtain wall joints, canopies, and entrances.
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Determine the support points, load paths, and connections to the original structure for the steel shaft.
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External elevators must have weather protection and non-slip measures at their entrance to prevent rainwater from flowing directly onto the hall door.
If the building is on a concrete slab, the elevator’s foundation location and pipe routing should be determined in the early structural design stage, as changes later on can be costly.
Outdoor elevator
Integrating the Elevator into the Overall Design
In open lobbies or finely decorated spaces, if you want to make the elevator less noticeable, you can blend it into the overall design:
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Use finishes that match the walls and door frames, making the elevator door part of the entire wall.
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Align the elevator door with equipment room doors or storage room doors in a uniform design line or array.
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In commercial or public spaces, combine scenic elevators with stairs or escalators into one complete vertical transportation system, which is both functional and visually striking.
Alternatively, place it in the logistics or “service area.”
For large residential or public buildings, some elevators (such as trash or freight elevators) can be placed in the logistics corridor or “service area”:
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Passenger elevators should face public areas, ensuring a pleasant experience and appearance.
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Freight and service elevators can be hidden in the back area for transporting goods, cleaning, and maintenance, minimizing disruption to the front area.
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For high-end residences, set up two separate vertical transportation systems: front elevators for residents and visitors, and back elevators for staff and logistics.
These elevator placements also need to be planned early, considering circulation, waste collection, and storage, rather than being added later in the construction phase.
Determining Elevator Size Based on Layout
The layout of the elevator determines its size. Different layouts are suitable for different buildings, adjusted based on usage, traffic, and space. Here are some common layouts and size references:
2 Car Lift LayoutSuitable for low-traffic areas, often used in small office buildings or residential projects.
Elevator width: 5.5 meters
Elevator depth: 5.6 meters
Waiting area width: 3 meters
This layout suits buildings of around 90,000 square feet (8361 square meters).
3 Car Lift LayoutIdeal for medium-traffic buildings, such as large office buildings or medium-sized hotels.
Elevator width: 8.2 meters
Elevator depth: 5.6 meters
Waiting area width: 3 meters
This layout suits buildings of around 135,000 square feet (12,542 square meters).
4 Car Lift LayoutFor buildings with higher loads, like large office buildings or commercial towers.
Elevator width: 10.9 meters
Elevator depth: 5.6 meters
Waiting area width: 3 meters
This layout suits buildings of around 180,000 square feet (16,723 square meters).
6 Car Lift LayoutFor large buildings or facilities with high passenger traffic, like large hospitals or shopping malls.
Elevator width: 8.2 meters
Elevator depth: 8.2 meters
Waiting area width: 3.2 meters
This layout suits buildings of around 270,000 square feet (25,084 square meters).
Other Considerations for Elevator Size Selection
- Safety and Compliance: Ensure the elevator size meets safety standards and building codes, such as door width and cabin depth.
- Peak Demand: Consider the peak demand when designing elevators, ensuring the waiting area is spacious enough for high traffic periods.
- Elevator Usage Type: Home elevators, commercial elevators, freight elevators, and medical elevators have different size needs.
