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Enlarged plans exist to show details that cannot be read at overall scales, especially for accessibility-critical rooms like restrooms. Clarity is maximized by dimensioning centerlines of fixtures (water closet, lavatory, grab bars), clearance envelopes around fixtures and doors, and mounting heights for accessories and dispensers. These dimensions allow contractors and inspectors to verify compliance directly on the drawing without cross-referencing multiple sheets. Keynotes are useful but must be paired with explicit dimensions; relying solely on a legend slows interpretation and invites mistakes. General notes are not a substitute for precise, scalable information within the detail. Finish schedules are inappropriate for dimensional criteria; they list materials, patterns, and ratings, not layout clearances. Including spot elevations and section cuts can further clarify slopes and blocking requirements. By providing centerlines, clearances, and mounting heights on the enlarged plan, the designer ensures accessible design intent is constructed accurately and efficiently.