The elevator pit is the space almost nobody thinks about until an inspector is standing in it. It is located below the lowest landing, out of sight of tenants and often out of mind for building staff, yet some of the most specific and heavily enforced requirements in the entire elevator code are applied to it. The ASME A17.1 safety code is adopted by Nevada by reference under NAC 455C.500, meaning that every one of these pit provisions is directly applicable to buildings across the Las Vegas Valley. Here is what the code actually requires, section by section.

Pit Depth and Bottom Car Clearance

The pit has to be deep enough to physically fit the buffers, compensating sheaves, and any other equipment installed at the bottom of the hoistway, and it also has to provide the minimum bottom car clearance required by the code. When the car is resting on its fully compressed buffer, there must be a vertical clearance of at least 24 inches between the pit floor and the lowest part of the car, unless a designated refuge space is provided instead. That refuge space can take one of two forms, either a horizontal area of 24 by 48 inches with 24 inches of height, or a smaller 18 by 35 inch area with 42 inches of height. Anywhere in the pit outside that refuge space where the clearance falls below 24 inches has to be clearly marked on the pit floor. The code also caps how far the car or counterweight can overtravel into the pit, limiting bottom runby to 24 inches for the car and 35 inches for the counterweight.

Pit Ladder and Access

Once a pit exceeds roughly three feet in depth, a permanent or retractable pit ladder becomes mandatory. The ladder has to be non-combustible, with a handrail extending at least 48 inches above the landing, rungs with a minimum of 4.5 inches of clearance behind them, a width of at least 16 inches, or 9 inches where an obstruction makes that impossible, and 12 inches of spacing between rungs. It also has to sit within 39 inches of the pit access point. If the pit floor sits more than 120 inches below the access door sill, a ladder alone is no longer sufficient and a dedicated pit access door is required instead, a threshold that can extend to 165 inches in cases where there is no building floor below the lowest landing. Access to the pit itself is restricted to elevator personnel only, not building staff or tenants.

The Pit Stop Switch

Every elevator pit is required to have its own enclosed stop switch, positioned so it is accessible before a technician ever steps onto the ladder. Where pit access runs through the lowest landing hoistway door, that switch typically sits about 18 inches above the landing floor, right next to the ladder. If the pit is deeper than roughly 67 inches, a second stop switch becomes necessary, positioned near the bottom of the pit around 47 inches above the pit floor, and when more than one switch is present, they have to be wired in series. This is one of the simplest life safety features in the entire elevator system, and it is also one of the most common items found damaged, painted over, or blocked by stored equipment during inspection.

Lighting and Electrical Requirements

Pit lighting has to run on its own separate branch circuit along with a GFCI receptacle, and the fixture itself has to provide at least 10 foot candles of light at the pit floor. The light switch is required to be located near the stop switch so a technician can see before they can act, and the fixture itself has to be guarded to prevent accidental damage. These requirements exist because pit work often happens in a cramped, low visibility space, and a technician without reliable lighting or a properly wired GFCI outlet is working with a real hazard, not just a code technicality.

Drainage, Sump Pumps, and Water Intrusion

Pits have to be constructed in a way that keeps groundwater from getting in, and passenger and freight elevators are required to have either a floor drain or a sump pump to manage any water that does find its way in. Sump pump discharge has to route outside the hoistway entirely, and building or footing drains are never allowed to connect directly into a pit sump system, since that would risk pushing sewage or stormwater back into the shaft during a heavy flow event. No device is permitted to deactivate the sump pump’s operation, and where a sump or sump pump is present, it has to be covered, with that cover secured and kept level with the surrounding pit floor. A pit that floods regularly or has a sump pump that has quietly stopped working is one of the more serious deficiencies an inspector can find, since standing water near electrical equipment in a confined space is a genuine hazard, not just a housekeeping issue.

Why Pit Condition Keeps Showing Up on Inspection Reports

Most of what causes a pit related deficiency traces back to neglect rather than a design flaw. A stop switch buried under stored materials, a ladder with a loose rung, a burned-out pit light that has gone unreported, or a sump pump that has not been tested in years can all be completely prevented through a regular walkthrough. Because the pit is out of daily sight, it is exactly the kind of space that should be checked between official inspections rather than being checked only once a year.

Partner With AR Elevator USA

A properly maintained pit protects the people who work in it and keeps your building out of the deficiency cycle described in our other inspection related posts. AR Elevator USA inspects, maintains, and corrects pit conditions for buildings across the Greater Las Vegas Area, from routine housekeeping issues to full sump and drainage repairs.

Ready to make sure your elevator pit meets Nevada’s code requirements?
Contact AR Elevator USA today for a professional pit inspection and detailed proposal.
Phone: 702-810-2757 | 702-463-6430
Email: info@arelevatorusa.com
Address: 4345 Corporate Center Drive, 203Suites, North Las Vegas, NV 89030
Website: https://www.arelevatorusa.com
Written By Eng. Houssam Zammam
An Elevator Portfolio Manager