h30190/hjplus_taiwan_architect_kb/accessible-elevator-shaft-dimensions

Accessible Elevator Shaft Dimensions (無障礙電梯機道尺寸對應)

Overview

Taiwan's accessibility code specifies car interior dimensions; building plans must show elevator shaft (hoistway) clear dimensions. The mapping between the two depends on the manufacturer, capacity, and door type.

Invoke this skill when:

• Laying out elevator cores on a floor plan and need to know how much shaft space to reserve
• Checking whether a selected elevator model meets §406.1 accessibility requirements
• Preparing building permit drawings involving elevator shafts

Regulatory Basis

Both thresholds derive from §406.1 of the Taiwan Accessible Facilities Design Specification (建築物無障礙設施設計規範). The H-2 residential relaxation is a proviso clause within the same article.

Statutory text (§406.1, excerpt, translated):

Car dimensions: elevator door clear width shall not be less than 90 cm; car depth shall not be less than 135 cm (handrail space excluded). However, for buildings of use class H-2 (residential/apartment), the door clear width shall not be less than 80 cm and the car depth shall not be less than 125 cm (handrail space excluded); voice systems may add a switch.

Core Principle: Code Measures the Car; Plans Show the Shaft

The regulatory threshold applies to car interior dimensions (door clear width, car depth). The dimensions drawn on building plans are the elevator shaft (hoistway) clear dimensions (width × depth).

Shaft dimensions vary by manufacturer, capacity, and door type. Direct substitution of code values into the plan is incorrect.

The tables below have completed three-layer verification: regulatory threshold → manufacturer car-spec confirmation → corresponding shaft dimension (data date: 2023-03-29).

Shaft Dimension Table — General Buildings (Door ≥ 90 cm, Car Depth ≥ 135 cm)

Smallest shaft: Mitsubishi machine-room-less P8 side-opening bi-fold — 170 × 180 cm

Shaft Dimension Table — H-2 Residential / Apartment (Door ≥ 80 cm, Car Depth ≥ 125 cm)

All P8 configurations from all three brands are compliant. The table lists the minimum shaft size per brand:

Smallest shaft: Mitsubishi machine-room-less P8 2S (170 × 180) or Chung Yu machine-room P8 (180 × 170) — similar footprint, different orientation; select based on floor plan.

Notes

• Mitsubishi machine-room-less P11 and P13 are not available in Taiwan
• OH (overhead clearance) and PIT (pit depth) vary by speed rating — refer to manufacturer spec sheets
• Machine-room types require additional machine room with minimum clear height: 220 cm (Mitsubishi, Chung Yu) or 200 cm (Yung Ta at 60 m/min)

Design Checks

• [ ] Confirm building use type (general or H-2 residential) to select the correct table
• [ ] Verify shaft dimensions are reserved on the floor plan for the selected brand and capacity
• [ ] Confirm structural beams and columns do not intrude into the shaft clear dimensions
• [ ] For machine-room-less type: verify OH and PIT depths meet manufacturer requirements

Data Currency

• Manufacturers: Mitsubishi Electric Taiwan, Yung Ta Elevator, Chung Yu Elevator
• Data date: 2023-03-29
• Manufacturer specifications may be updated. Verify against the latest spec sheet before permit submission.

References

• Taiwan Accessible Facilities Design Specification §406 (Elevating Equipment) — Ministry of the Interior regulation system: https://glrs.moi.gov.tw/
• Taiwan Building Technical Regulations — Design and Construction Chapter §55 (Elevator Equipment)