ISO 7519:2024

Overview

ISO 7519:2024 - Technical product documentation (TPD) - Construction documentation - General principles of presentation for general arrangement and assembly drawings establishes consistent, practical rules for presenting building and architectural drawings. The second edition modernizes presentation principles for general arrangement and assembly drawings, includes guidance for site plans and site layout drawings, and considers CAD and BIM workflows. This standard helps ensure drawings are readable, accurate and suitable for handover, construction and coordination.

Key topics and requirements

• Scope and purpose: Rules for conveying intent, dimensional accuracy and robustness of external references in construction documentation.
• Types and organization of drawings: Definitions and hierarchy for site plans, site layout drawings, general arrangement, assembly, component and detail drawings; grouping and supplementary information for drawing sets.
• Representation techniques: Simplification levels (low/medium/high/detailed), representation types, and general graphical conventions to improve clarity.
• Graphical symbols and lines: Requirements for symbol types, presentation and consistent interpretation; guidance on line types, line widths and their use in cut/foreground/background indication.
• Hatching, shading and colour: Purpose-driven use of hatch and shading, scale considerations and guidance for large-area treatments.
• Alphanumerical information: Text styles, heights, designations, keynotes, schedules and lists to support unambiguous documentation.
• Specific applications: Recommended representations for stairs, ramps, doors (including swings), windows, suspended ceilings, openings/recesses and arrow symbols.
• Referencing and cross-referencing: Best practices for linking drawings and supporting information.
• Annexes: Informative examples for door/window representation and materials in plan/section.

Applications and users

Who benefits from ISO 7519:2024:

• Architects and architectural drafters creating building layouts and general arrangement drawings.
• Structural, MEP and civil engineers preparing assembly and coordination drawings.
• CAD technicians and BIM managers implementing drawing templates and model exports.
• Contractors, fabricators and trades who rely on consistent presentation for fabrication and construction.
• Document controllers and quality managers ensuring compliance with industry drawing conventions.

Practical uses:

• Establishing drawing templates and CAD/BIM output rules.
• Standardizing symbol libraries, line styles and hatch conventions.
• Improving cross-disciplinary coordination and reducing misinterpretation on-site.
• Producing clear site plans, assembly drawings and part/component documentation.

Related standards

ISO 7519:2024 was prepared by ISO/TC 10 (TPD) in collaboration with CEN and replaces ISO 7519:1991. It complements other international standards on technical product documentation, drawing conventions and CAD/BIM interoperability. For implementation, obtain the full standard from ISO.