unfinished.one

Uniformat D1020

Escalator

  • Confidence C
  • Version 0.3.0 (permanent link)
  • Reviewed 2026-10-22

This is version 0.3.0. The latest is 0.5.0.

Service life

50 yearsas stated by one source
0510152025303540455055605050

Years in service. One stated life so far; the band will widen as sources are added.

One source. This value rests on a single document (CNA e-Tool Estimated Useful Life Table, p14). Treat it as that source's figure, not a settled life, until others confirm it.

Basis

  • 50 years · CNA e-Tool Estimated Useful Life Table, p14 · HUD CNA 3.5.1.10 “Escalators” — U.S. Department of Housing and Urban Development (planning life)
    Same life for family and elderly properties. US multifamily housing.

How sources are chosen and recorded: sourcing policy.

Municipal lives for conveying (D10)

9 municipalities in Ontario and British Columbia state a life for conveying as a whole, in 9 distinct tables: 20–35 years, median 20. These come from capital asset policies: accounting lives, used for amortization. They describe the system rather than this component, and none is a measured life.

Median 20 yearsGrey Highlands: Elevator, 20 yearsKenora: Buildings - Elevator, 20 yearsPrince Edward: Buildings - Elevators, 20 yearsSarnia: Elevators, 20 yearsSevern: Building Components - Elevators, 20 yearsWelland: Elevator, 20 yearsParksville: Elevators, 25 yearsBrockton: Elevator - Mechanical Elevator, 35 yearsGreater Madawaska: Services Conveying, 25–30 years010203040

Years. Each dot is one stated life and each bar a stated range; equal values stack. The dashed line is the median. Policies that copy the same table count once.

All 9 stated lives
MunicipalityAs writtenYearsKindSource
Grey HighlandsElevator20accountingp11 · 2026
KenoraBuildings - Elevator20accountingp15 · 2026
Prince EdwardBuildings - Elevators20accountingp34 · 2022
SarniaElevators20accountingp1
SevernBuilding Components - Elevators20accountingp400 · 2019
WellandElevator20accountingp8 · 2021
ParksvilleElevators25accountingp9 · 2023
Greater MadawaskaServices Conveying25–30accountingp17 · 2025
BrocktonElevator - Mechanical Elevator35accountingp2 · 2009

Every row was matched to its page automatically (the label and number appear in the page text). Follow the page link before relying on an automatically matched row. About the policies · All approved rows as JSON

Preventive maintenance

1 tasks in 1 work order.

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6
  7. 7
  8. 8
  9. 9
  10. 10
  11. 11
  12. 12Annual

Months from the schedule start. Download the tasks as CSV for a CMMS, or ask the MCP tool get_pm_schedule for dated visits.

Annual · 1 task

Source: NAVFAC MO-118 Inspection of Vertical Transportation Equipment, 7.3 Periodic Inspection and Tests (escalators)

TaskPage
Perform escalator periodic inspections and testsp185

Frequencies are ISO 8601 durations in the data (P3M = every 3 months).

Open questions

  • Only one source so far, HUD's 50 years for escalators. HUD's single row does not separate the truss, which can last that long, from drives, steps, handrails and controls, which usually need major work much sooner. A second openly licensed source is needed before relying on 50 years.
  • Only one source so far: HUD planning lives for US multifamily housing. Canadian and observed sources are needed.
  • Elevator tasks come from NAVFAC MO-118 (1988), which restates the elevator code tests of its time; check them against the current ASME A17.1 and local requirements.

Know the answer? Send it with a source to [email protected].

Cite this

Citation

unfinished.one (2026). Escalator, v0.3.0. https://unfinished.one/c/escalator/v/0.3.0

BibTeX

@misc{unfinished_escalator_0_3_0,
  title = {Escalator},
  author = {{unfinished.one}},
  year = {2026},
  version = {0.3.0},
  url = {https://unfinished.one/c/escalator/v/0.3.0},
  note = {CC BY 4.0}
}

Licence CC BY 4.0 · How to cite · JSON · Versions: 0.5.0, 0.4.0, 0.3.0, 0.2.0, 0.1.0