Category: Home Improvement

Dumbwaiter Installation in Boise, Idaho: What to Know About Design, Safety, and Long-Term Reliability

A smarter way to move groceries, laundry, and supplies—without straining stairs

A dumbwaiter is one of the most practical “quiet upgrades” you can make to a home or building in the Treasure Valley. It doesn’t change how you live day-to-day as dramatically as a full elevator—but it can remove a surprising amount of lifting, carrying, and risk on stairs. For Boise homeowners aging in place, families with multi-level living, and commercial property managers looking for efficient back-of-house transport, the best results come from planning the installation around safety, code compliance, and the realities of your structure (not just where you wish it could go).
Focus keyword: dumbwaiter installation (Boise, ID)
Idaho Custom Lifts & Elevators designs and installs residential and commercial dumbwaiters, along with full-service maintenance and support across Boise and the surrounding Treasure Valley. If you’re weighing whether a dumbwaiter fits your space—or you’re comparing options—use the guide below as a clear checklist for decisions that affect performance and safety for years.

What a dumbwaiter is (and what it isn’t)

A dumbwaiter is a small material-handling lift that travels between two or more landings. It’s intended for moving items—not people. In safety-code language, dumbwaiters are grouped with “conveyances” that transport material by car size and restricted access. That distinction matters because it drives the design rules, safety features, and inspection requirements used by authorities having jurisdiction. (asme.org)
Common Boise-area uses
• Homes: groceries to kitchen, laundry to bedrooms, moving boxes or seasonal items.
• Commercial: restaurant dish or supply runs, office file transport, church/kitchen support spaces.
• Accessibility support: reducing the need to carry items on stairs can meaningfully lower fall risk for many households (even when a person-lift isn’t needed).

Boise dumbwaiter planning: the 4 decisions that shape the entire project

The best dumbwaiter installations are decided on paper before any openings are framed or cut. Here are the four choices that tend to determine the rest.
Decision What it affects Practical Boise tip
Stops/landings (2 vs. 3+) Shaft location, controls, door interlocks, and travel height Pick landings that match real routines (garage→kitchen is often higher value than basement→main).
Load capacity (typical 100–500 lbs) Motor/drive selection, rails, structural support, safety devices Don’t “oversize by default.” Bigger cars can demand more space and structure than many homes allow.
Car size & opening (front vs. pass-through) Convenience, landing layout, and safety around loading/unloading Pass-through can be great for kitchens—but it may increase required clearances.
Finish & environment (painted vs. stainless, clean vs. wet areas) Durability, corrosion resistance, cleaning routine Commercial kitchens and “mud room” landings often benefit from tougher, easy-clean finishes.
Note: capacity ranges vary by model and use (residential vs. commercial). Always confirm final specifications during design and permitting.

Safety and code: what matters most for dumbwaiter installation

Dumbwaiters may be smaller than elevators, but they’re still regulated conveyances with real hazards if corners are cut. The two areas that most often separate a dependable installation from a headache are: (1) door/landing safety and (2) ongoing inspection/maintenance readiness. Industry safety codes cover dumbwaiters as part of the broader elevator and escalator safety framework. (asme.org)
Key safety features to expect
• Interlocks/landing controls: designed to reduce risk of access to the hoistway when the car isn’t present.
• Controller safety logic: UL-listed components and a clean wiring layout help with reliability and serviceability.
• Proper hoistway construction: correct clearances, durable door frames, and safe access for service personnel.
• Safe loading habits: shelves/trays that minimize tipping, and landing design that discourages overloading.
If you manage a commercial building, it’s also worth remembering that inspection and testing frameworks commonly reference ASME A17.x standards for elevators and dumbwaiters. (highergov.com)

Step-by-step: how a Boise dumbwaiter installation typically works

1) Site visit & layout selection

Your installer confirms the best hoistway path, landing locations, and whether the project is easiest as a stacked closet retrofit, a new shaft, or a mixed approach.

2) Design, specs, and coordination

This is where car size, capacity, door style, and finishes are locked in. If the dumbwaiter serves kitchens or back-of-house areas, cleanability and durability should be part of the spec—not an afterthought.

3) Permits & inspections planning

Most projects involve building/trade permitting plus a conveyance-focused process. In Idaho, the state elevator program oversees elevators and related conveyances, including dumbwaiters, and publishes fee and program information. (dopl.idaho.gov)

4) Installation & acceptance readiness

The team installs rails, car, doors, and controls, then confirms smooth travel, safe stopping, and proper landing operation. A clean, documented install makes future service faster and less expensive.

5) Owner training & maintenance setup

You’ll get best practices for loading, what not to transport, and what “normal” operation sounds/feels like—plus a plan for periodic service so the system stays dependable.
For homeowners doing a remodel in Boise, coordination with local building inspections is a normal part of the construction process. (permitflow.com)

Breakdown: residential vs. commercial dumbwaiters

The biggest difference is duty cycle and environment. A residential dumbwaiter is often used a few times a day. A commercial dumbwaiter may be used continuously during operating hours, with heavier loads and tighter timelines. That typically changes how you spec materials, doors, and long-term maintenance.
Residential priorities
• Quiet operation
• Blends with cabinetry/walls
• Right-sized car for groceries/laundry
• Easy-to-use controls at each landing
Commercial priorities
• Durability and cleanability
• Higher use frequency
• Clear loading procedures for staff
• Service access and record-keeping readiness
If you’re a property manager, don’t treat maintenance records as “optional paperwork.” Inspection failures in Idaho news coverage have repeatedly pointed to missing maintenance records and deferred upkeep as red flags—especially in buildings serving vulnerable residents. (boisedev.com)

Quick “Did you know?” facts

Dumbwaiters are regulated conveyances
Safety codes explicitly include dumbwaiters and material lifts under the same umbrella as elevators and escalators. (asme.org)
Idaho has a dedicated elevator program
Idaho’s state program information and fee schedules include dumbwaiters alongside platform and material lifts. (dopl.idaho.gov)
Maintenance issues can become a compliance issue
Inspection reports can flag missing maintenance records and neglected upkeep as code-related concerns. (boisedev.com)

Local angle: dumbwaiter installation in Boise and the Treasure Valley

Boise homes often combine multi-level living with active lifestyles—meaning stairs get used heavily every day. A dumbwaiter is especially helpful in:

• North End & East End remodels: older homes where careful shaft placement matters.
• Foothills and hillside builds: multiple floors, garages below living spaces, and long stair runs.
• Downtown and mixed-use buildings: commercial operations that benefit from organized, safe material transport.
If your project is part of a broader build or tenant improvement, building inspections are a standard part of Boise-area construction workflows. (permitflow.com)
Related local services (helpful as you compare options)
If you’re deciding between a dumbwaiter and a people-moving solution, it helps to compare against home elevators, platform lifts, or stair lifts—especially for long-term mobility planning.

Ready to plan a dumbwaiter that fits your home or building?

Idaho Custom Lifts & Elevators provides design, installation, service, and maintenance for residential and commercial dumbwaiters across Boise and the Treasure Valley. If you want clear recommendations on car size, shaft placement, and what to expect for permitting and long-term service, we’re here to help.

FAQ: Dumbwaiter installation (Boise, ID)

Do dumbwaiters require permits and inspections in Idaho?
Often, yes—both building/trade permitting and conveyance-related steps may apply depending on the scope. Idaho’s elevator program includes dumbwaiters in its published program information and fee schedule. (dopl.idaho.gov)
What’s the difference between a dumbwaiter and a material lift?
Both move goods between landings, but they’re categorized and designed differently based on size, access restrictions, and intended use. Safety codes address both categories within the broader elevator safety framework. (asme.org)
Can a dumbwaiter be installed in an existing home?
Frequently, yes. Many retrofits use stacked closets or corner chases. The key is verifying a safe hoistway path, landing layout, and the structure needed for rails and doors.
Are dumbwaiters ADA compliant?
ADA generally addresses accessibility for people, not item-only lifts. Dumbwaiters can support operations, but they don’t replace accessible routes or a compliant elevator/platform lift when people need vertical access. If your project is about public accessibility, ask about options like platform lifts or LULA elevators.
How do I keep a dumbwaiter reliable long-term?
Keep it clean, don’t overload it, and schedule preventative maintenance. In inspection contexts, maintenance records and consistent upkeep matter—especially in commercial settings. (boisedev.com)

Glossary

Conveyance
A regulated device that moves people or materials vertically (or on an incline), such as elevators, platform lifts, and dumbwaiters.
Hoistway (shaft)
The enclosed vertical space the dumbwaiter car travels through. Proper construction and clearances are critical for safe operation and service access.
Interlock
A safety mechanism tied to doors/landings designed to reduce the chance of unsafe access to the hoistway during operation.
Acceptance inspection
A required inspection step for new installations before the system is approved for operation, depending on jurisdiction and conveyance type.

Custom Lifts for Idaho Homes & Businesses: Choosing the Right Elevator, Stair Lift, or Platform Lift in Nampa

Accessibility that fits your building—without forcing a “one-size-fits-all” solution

In Nampa and across the Treasure Valley, property owners are planning for long-term comfort, safer daily movement, and code-aligned accessibility. “Custom lifts” can mean several different systems—home elevators, LULA elevators, wheelchair platform lifts, stair lifts, dumbwaiters, and freight/material lifts—each designed for a specific purpose, travel height, and user need. This guide breaks down how to choose the right option, what to expect during installation, and how to protect reliability with proper service and inspections.

What “custom lifts” really means (and why it matters)

The best lift is the one that matches your building’s structure, the people who will use it, and the codes that apply to the site. A lift that’s perfect for a split-level home may be the wrong tool for a church, medical office, restaurant, or warehouse. When you choose a system that’s aligned with the use case, you typically gain:

Better day-to-day safety (stable landings, consistent operation, proper clearances)
Fewer service interruptions (the equipment is not being pushed beyond its intended duty cycle)
More predictable compliance (especially for commercial/public-facing spaces)
Cleaner design integration (cab finishes, gates/doors, placement, and controls)

Start with the “why”: the 5 questions that narrow down the right lift

Before picking a model or footprint, it helps to clarify five practical questions:

1) Who is the primary user? (aging-in-place homeowner, wheelchair user, staff moving inventory, public customers)
2) What is being moved? (people, wheelchairs, packages, food trays, laundry, materials)
3) How far does it need to travel? (a few steps/porch rise vs. one or more floors)
4) Is the site residential or commercial/public? (code requirements and inspection expectations differ)
5) What constraints exist? (tight stairways, limited shaft space, power supply, door swing, outdoor exposure)

Once you can answer those questions, it becomes much easier to compare a residential elevator vs. a stair lift vs. a wheelchair platform lift—or determine whether a LULA elevator is the most practical way to add accessibility in a low-rise commercial building.

Did you know?

ADA maintenance matters: Federal guidance emphasizes that accessible features must be maintained in operable working condition—extended failures can create compliance risk in public-facing spaces. (ada.gov)
LULA elevators are recognized in ADA standards: The ADA standards include a section for Limited-Use/Limited-Application (LULA) elevators and reference ASME A17.1 for safety requirements. (ada.gov)
Safety codes are the backbone: ASME A17.1 is widely used across North America for elevator design, installation, operation, inspection, maintenance, and repair. (asme.org)

Custom lift options: what each system is best at

Residential elevators (home elevators)

A home elevator is typically the “whole-home” solution when stairs are becoming a barrier or when you want long-term convenience (groceries, laundry, luggage). It’s also a strong fit for multi-level homes where a stair lift wouldn’t serve all users comfortably (or where the staircase geometry limits options).

Learn more about installation planning and options on our Boise residential elevator installation page.

LULA elevators (Limited Use / Limited Application)

In many low-rise commercial settings—lodges, churches, small offices, community buildings—a LULA elevator can be an efficient path to accessibility. The ADA standards specifically address LULA elevators and point back to ASME A17.1 for the elevator safety framework. (ada.gov)

Wheelchair platform lifts (vertical platform lifts)

Platform lifts are often the right call for shorter travel distances—such as stage access, short floor-to-floor rises, or entry/porch applications—when a full elevator isn’t necessary or feasible. Many platform lift installations are guided by ASME A18.1 (a safety standard covering platform lifts and stairway chairlifts). (intertek.com)

Compare options on our wheelchair lifts page, or explore commercial wheelchair lift solutions.

Stair lifts (stair chairs)

Stair lifts can be an excellent, fast-to-install solution when walking stairs is difficult but the user can transfer safely to a seat. They’re especially popular for aging-in-place projects in Nampa homes with straight runs (and many curved staircases can be accommodated with the right design).

Visit residential stair lift installation for planning considerations.

Dumbwaiters (residential & commercial)

Dumbwaiters move goods—not people. Homeowners often use them for groceries or laundry between floors. Restaurants, offices, and hospitality spaces may use commercial dumbwaiters to reduce staff strain and streamline back-of-house flow.

Freight / material lifts

For warehouses, shops, and facilities moving heavy loads, freight lifts focus on durability, capacity, and workflow. If your team is pushing carts up ramps or struggling with repeated manual handling, a freight lift can reduce damage risk and improve operational efficiency.

How to plan a custom lift project (practical step-by-step)

Step 1: Identify the “must-haves” vs. “nice-to-haves”

Must-haves could include wheelchair access, specific door widths, or a certain travel height. Nice-to-haves might include upgraded cab finishes, a specific control style, or extra stops.

Step 2: Confirm the building constraints early

Shaft/hoistway space, pit and overhead requirements, power, and door swing clearances can determine which equipment category is realistic. Early layout validation prevents mid-project change orders.

Step 3: Align the project with applicable codes and use

Commercial and public-facing spaces often have additional accessibility and inspection expectations. ADA standards call out elevator requirements (including LULA) and stress maintaining accessible features in operable working condition. (ada.gov)

Step 4: Plan for long-term service, not just install day

Reliability is a lifecycle decision. A strong maintenance plan helps reduce downtime, protects parts, and supports safer operation. If you manage a commercial property, plan your service relationship at the same time you plan your equipment.

Quick comparison: which lift matches which need?

System Best for Typical settings Key planning note
Residential elevator Multi-floor home access + daily convenience Homes, aging-in-place remodels, new builds Space planning (shaft, doors, controls) early in design
LULA elevator Low-rise accessibility in public/commercial buildings Churches, lodges, small offices, community spaces Often tied to ADA expectations; design around traffic flow (ada.gov)
Wheelchair platform lift Short rises where an elevator is unnecessary Entries, stages, split-level transitions Confirm travel distance and site exposure (indoor/outdoor) (intertek.com)
Stair lift Stair access for users who can transfer to a seat Homes with limited space for a shaft Stair geometry matters; plan parking and transfer space
Dumbwaiter Moving goods (not passengers) between floors Homes, restaurants, offices Plan drop-off points to reduce carrying and spills
Freight/material lift Heavy loads + operational workflow Warehouses, shops, back-of-house areas Capacity and duty cycle drive design and maintenance planning

Nampa & Treasure Valley notes: inspections, uptime, and property planning

In the Treasure Valley, lift uptime is more than convenience—especially for commercial buildings that serve the public. A practical way to reduce surprises is to treat service, documentation, and inspections as part of the building’s routine operations.

Budget for maintenance as a predictable operating expense (not an emergency line item).
Keep records accessible for inspections and service calls—organized logs can speed troubleshooting.
Plan ahead for scheduled inspections so you’re not forced into rushed repairs at the worst time.
If you’re managing a business or multi-tenant facility, review our commercial elevator service and inspection support options, or learn more about our full elevator sales, support, and service.

Talk with a local lift team about your space

Whether you’re planning a home elevator in Nampa, adding a wheelchair platform lift, or managing a commercial elevator that needs dependable maintenance, Idaho Custom Lifts & Elevators can help you sort options, constraints, and next steps—without guesswork.

FAQ: Custom lifts, elevators, and accessibility equipment

Is a stair lift “better” than a home elevator?

It depends on the user and the home. Stair lifts can be ideal when the primary need is seated stair travel and there’s limited space for a shaft. A home elevator is often better for multi-floor access, carrying items, and long-term accessibility planning—especially when wheelchair access is needed.

What’s the difference between a LULA elevator and a commercial passenger elevator?

LULA elevators are typically used for limited-use, low-rise applications and are commonly selected for accessibility upgrades in smaller commercial buildings. ADA standards include requirements specific to LULA elevators and reference ASME A17.1 for safety code alignment. (ada.gov)

Do platform lifts have a different code than elevators?

Many platform lifts are governed by ASME A18.1, which addresses platform lifts and stairway chairlifts as a separate category from the main elevator code. (intertek.com)

How can a business reduce elevator downtime?

A proactive service plan helps: schedule preventive maintenance, address small issues quickly (door performance and communication devices are common culprits), and keep onsite maintenance and inspection documentation organized. ADA guidance also stresses maintaining accessible features in operable working condition. (ada.gov)

Can you help with controllers and modernization?

Yes—controllers and electrical components can be a major driver of reliability. If you’re planning upgrades, see our Smartrise elevator controller service page and talk with our team about what’s appropriate for your equipment and usage.

Glossary (quick definitions)

ASME A17.1: A widely used safety code covering elevators and related conveyances, including guidance for design, installation, operation, inspection, maintenance, alteration, and repair. (asme.org)
ASME A18.1: A safety standard that covers platform lifts and stairway chairlifts (commonly referenced for wheelchair platform lifts and similar equipment). (intertek.com)
LULA elevator: Limited-Use/Limited-Application elevator—often used in low-rise buildings for accessibility; addressed within ADA standards and tied to ASME A17.1 for safety. (ada.gov)
Platform lift (wheelchair lift): A lift designed to move a wheelchair user between levels over shorter travel distances than a typical elevator.
Controller: The “brains” of a lift/elevator system that manages movement, door operation, stops, and safety circuits—often a key component in reliability and modernization planning.

Dumbwaiter Installation in Eagle, Idaho: A Practical Guide for Homeowners & Property Managers

Safer trips, easier daily routines, and cleaner carry paths between floors

A dumbwaiter is one of the most underrated accessibility and convenience upgrades for multi-level homes and light commercial spaces. In Eagle and across the Treasure Valley, dumbwaiters are especially popular for moving groceries, laundry, dishes, small supplies, and boxes—without carrying loads up stairs. This guide explains what “good” dumbwaiter installation looks like, how to plan the shaft and doors, what to expect for permits/inspections in Idaho, and how to keep your system reliable long-term.
Quick note on terminology: A dumbwaiter is a small freight-style lift for goods—not passengers. Most systems are cable/winding-drum style and are designed around safe, controlled movement and interlocked doors so the hoistway is never open while the car is away from a landing.

1) Is a dumbwaiter the right solution for your building?

Dumbwaiters are ideal when you’re moving items (not people) between levels and you want a cleaner, safer alternative to stair carries. In homes, common use-cases include kitchens-to-garage, pantry-to-kitchen, laundry-to-bedroom floors, or moving seasonal storage bins. In commercial settings, they’re often used for back-of-house transport of supplies.
If you need to move… Best-fit option Why
Groceries, laundry baskets, dishes, small boxes Dumbwaiter Fast item transport with a small footprint
A wheelchair user (or someone who can’t do stairs) Wheelchair/platform lift or elevator Designed and coded for passenger use and accessibility
Large carts/pallet loads in a business Freight/material lift Built for heavier capacities and industrial duty cycles
If you’re deciding between options for a home, it may also help to compare with a residential elevator. If that’s on your roadmap, see Boise residential elevator installation guidance from Idaho Custom Lifts & Elevators.

2) What “good” dumbwaiter installation planning includes

The smoothest projects start with a layout conversation before any framing begins. Even when the equipment is straightforward, the building details—shaft alignment, door swing, electrical, and finish coordination—determine whether the system feels seamless or “added on.”

Hoistway (shaft) design

Your dumbwaiter needs a vertical path that stays plumb across floors. Many residential systems can fit within a compact footprint, but your installer will confirm clearances, car size, and whether travel is 2 stops or multi-stop. Some designs can reach up to around 50 feet of travel depending on model/specifications. (foxvalleyelevator.com)

Landing doors + safety interlocks

Door coordination is a common “gotcha.” A safe dumbwaiter installation includes code-appropriate door interlocks so a landing door can’t be opened when the car isn’t present at that level. This protects kids, pets, and anyone working around the opening.

Electrical and controls

Your installer will plan dedicated power, disconnect requirements, call/send stations at each landing, and any integration with your finish carpentry plan (trim, cabinet panels, stainless faces, etc.). Professional coordination here prevents mid-project rework.
For broader project coordination (especially when a home has multiple lift systems), Idaho Custom Lifts & Elevators provides elevator sales, support, and service across the Treasure Valley.

3) Step-by-step: what to expect during dumbwaiter installation

Step 1: Site visit + measurements

Confirm the stops, identify the best shaft location, and review what you’ll be lifting (laundry, groceries, small boxes). This drives car sizing and door placement.

Step 2: Permit path + inspection planning

In Idaho, dumbwaiters fall under state elevator/conveyance oversight. It’s smart to clarify permit requirements and inspection scheduling early so the project doesn’t stall at the end. Idaho’s DOPL Elevator Program provides permits/inspections information and references its adopted safety code framework. (dopl.idaho.gov)

Step 3: Framing the hoistway and landing openings

Your contractor builds the shaft, doors/rough openings, and any needed blocking. Precision matters: a clean, plumb hoistway reduces noise and improves leveling.

Step 4: Equipment installation + interlocks

Rails, machine/drive, car, and safety devices are installed. Door interlocks and call/send stations are set so each landing operates predictably.

Step 5: Testing, adjustments, and turnover

The installer verifies operation, smooth travel, and safe door behavior. You’ll get basic operating instructions and maintenance expectations.

If your project includes more than a dumbwaiter—such as a stair lift or platform lift—explore residential accessibility solutions or commercial lift solutions to keep scope and timelines aligned.

4) Maintenance tips that protect reliability (and your inspection readiness)

A dumbwaiter is a mechanical system—small, but still a “conveyance.” The best way to avoid nuisance issues is consistent upkeep and a clear service plan. Idaho’s elevator program framework emphasizes safety and inspection processes for regulated conveyances. (dopl.idaho.gov)
Keep the hoistway clean: Dust, debris, and storage near doors can interfere with safe operation and create wear over time.
Don’t overload the car: Residential units commonly fall in the 100–200 lb range, though capacities vary by model. Treat the rated load as a hard limit, not a suggestion. (kclift.com)
Schedule service before problems show up: Minor adjustments (doors, switches, alignment) are far cheaper than downtime after a failure.
If you’d like a planned approach, visit lift and dumbwaiter maintenance to set up ongoing care.

5) Local angle: dumbwaiter installation considerations in Eagle & the Treasure Valley

In Eagle, Idaho, dumbwaiter projects often happen in newer multi-story homes, remodels with kitchen upgrades, and properties designed for long-term living. A few local planning realities are worth keeping in mind:
Permit & inspection coordination: Idaho’s Division of Occupational and Professional Licenses (DOPL) oversees elevator/conveyance programs, including dumbwaiters and platform lifts, with online resources for permits and inspections. Plan this early—especially on tight remodel timelines. (dopl.idaho.gov)
Finish carpentry matters: Many Eagle homes prioritize clean design. Aligning landing doors with cabinetry, trim, and countertop workflow is what makes the system feel “built-in,” not bolted-on.
Plan for long-term service access: Ensure the drive/machine location and controller access remain reachable after the remodel is complete.

Ready to plan a dumbwaiter installation in Eagle, ID?

Idaho Custom Lifts & Elevators is a family-owned, full-service elevator company serving Eagle, Boise, and the Treasure Valley. If you want a layout review, help coordinating permits/inspections, or a clear scope for a new install or replacement, we’re here to help.
Prefer to start with service planning? Explore support & service options.

Frequently Asked Questions

How much weight can a residential dumbwaiter carry?

It depends on the model, but many residential dumbwaiters are commonly in the 100–200 lb range, with some systems offered in higher capacities. Your installer will size the unit to your use-case and confirm the rated load before installation. (kclift.com)

Do I need a permit for dumbwaiter installation in Idaho?

Often, yes—dumbwaiters are treated as regulated conveyances. Requirements can vary by project and local jurisdiction, but Idaho’s DOPL Elevator Program provides permit and inspection information and should be part of your planning checklist. (dopl.idaho.gov)

How many stops can a dumbwaiter have?

Many systems are installed with 2 stops (for example, kitchen-to-garage), but multi-stop configurations are available depending on travel height, layout, and the equipment selected. Some models are advertised with multiple stops (even up to 6) under certain specifications. (foxvalleyelevator.com)

Is a dumbwaiter considered an ADA accessibility device?

No. A dumbwaiter moves goods only and is not designed for passenger transport. If you’re solving a mobility/accessibility need, you’ll typically be looking at a platform lift, LULA elevator, or a residential elevator depending on the setting and requirements.

Glossary

Hoistway (Shaft): The framed vertical enclosure that the dumbwaiter travels inside.
Landing Door: The door at each floor/stop where items are loaded and unloaded.
Interlock: A safety device that prevents a landing door from opening unless the car is at that landing (and prevents movement when the door is not secured).
Rated Load: The maximum safe carrying capacity set by the equipment manufacturer and reflected on the unit’s labeling/documentation.