Architectural Legend Sheet with Material Hatch Patterns and CAD Symbols

This architectural general sheet displays comprehensive legends for material hatch patterns and architectural symbols used throughout the project documentation. The left section features standardized hatch patterns for 18 construction materials including structural reinforced concrete, CMU (concrete masonry units), aluminum, wood, gypsum board, and various insulation types. Each pattern is labeled with its corresponding material for consistent documentation across all project sheets. The right section details architectural annotation symbols for elements like wall tags, door tags, window tags, louver tags, ceiling level indicators, and stair dimensioning conventions. The drawing follows Egyptian construction documentation standards, with text in both English and Arabic, and uses metric units throughout. This type of legend sheet is critical for proper interpretation of the full drawing set for the Call Center Building project (B02), particularly for construction documentation.