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2010 ADA Standards for Accessible Design Pocket Guide

407.4.1 Car Dimensions.

Inside dimensions of elevator cars and clear width of elevator doors shall comply with Table 407.4.1. [S.H. 4.10.9], [S.H. 10.3.1(17)]

EXCEPTION: Existing elevator car configurations that provide a clear floor area of 16 square feet (1.5 m2) minimum and also provide an inside clear depth 54 inches (1370 mm) minimum and a clear width 36 inches (915 mm) minimum shall be permitted. [S.H. 4.1.6(3)(c)(ii)], [S.H. 4.1.6(3)(c)(iii)]

Table 407.4.1 Elevator Car Dimensions
  Minimum Dimensions
Door Location Door Clear Width Inside Car, Side to Side Inside Car, Back Wall to Front Return Inside Car, Back Wall to Inside Face of Door
Centered

42 inches

(1065 mm)

80 inches

(2030 mm)

51 inches

(1295 mm)

54 inches

(1370 mm)

Side

(off-centered)

36 inches

(915 mm)1

68 inches

(1725 mm)

51 inches

(1295 mm)

54 inches

(1370 mm)

Any

36 inches

(915 mm)1

54 inches

(1370 mm)

80 inches

(2030 mm)

80 inches

(2030 mm)

Any

36 inches

(915 mm)1

60 inches

(1525 mm)2

60 inches

(1525 mm)2

60 inches

(1525 mm)2

1. A tolerance of minus 5/8 inch (16 mm) is permitted.

2. Other car configurations that provide a turning space complying with 304 with the door closed shall be permitted.

Figure (a) shows an elevator car with a centered door.  The door clear width is 42 inches (1065 mm) minimum and the car width measured side to side is 80 inches (2030 mm) minimum.  The car depth is 51 inches (1295 mm) minimum measured from the back wall to the front return, and 54 inches (1370 mm) minimum measured from the back wall to the inside face of the door.
Figure (b) shows an elevator car with an off-centered door. The door clear width is 36 inches (915 mm) minimum and the car width measured side to side is 68 inches (1725 mm) minimum.  The depth is 51 inches (1295 mm) minimum measured from the back wall to the front return, and 54 inches (1370 mm) minimum measured from the back wall to the inside face of the door.
Figure (c) shows a car with a clear door width of 36 inches (915 mm) minimum and the car width measured side to side is 54 inches (1370 mm) minimum.  The car depth is 80 inches (2030 mm) minimum measured from the back wall to the front return.
Figure (d) shows a car with a clear door width of 36 inches (915 mm) minimum and the car width measured side to side is 60 inches (1525 mm) minimum.  The car depth is 60 inches (1525 mm) minimum measured from the back wall to the front return.
Figure (e) illustrates the exception for an existing elevator car configuration.  The car depth is 54 inches (1370 mm) minimum, the width is 39 inches (915 mm) minimum, and the clear floor area is 16 square feet (1.5 square m) minimum.

Figure 407.4. Elevator Car Dimensions

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