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United States · ADA · Illustrated standards guidance

Operable parts: reach ranges and controls

Forward and side reach guidance for accessible controls, switches and other operable parts, including obstructed reaches.

AccessibilityAnthropometry & ergonomics
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Source wording and page order preserved. Drawings and table layouts remain available in the original PDF.

Chapter 3: Building Blocks Operable Parts Side Reach [§308.3] The range for side reach, like forward reach is 15” to 48” if unobstructed. The maximum reach depth for this range is 10” measured from the available clear floor space. 48” max Fuel Dispensers The operable parts of fuel dispensers located on existing curbs can be up to 54” high. 15” min Obstructed High Reach The maximum high reach is reduced to 46” when the reach over an obstruction is deeper than 10” (to a maximum of 24”). Obstructions at side reaches are limited to a height of 34”. 10” max >10”- 24” max 48” 46” max max 34” 34” max max 7

Edition and local adoption determine which requirements apply. Use the publisher’s document for the complete clauses, diagrams and amendments.