At FireEscapePlans.com, we provide evacuation diagrams for clients across multiple countries. While individual nations may have different safety regulations, the core requirement everywhere is the same:
Evacuation diagrams must be clear, readable, and include all essential safety information.

Below is our standard size guidance followed by most international facilities:

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Fire Escape Plan Size Options

A4 Size (210mm × 297mm) — Minimum

A4 is the smallest commonly accepted size for evacuation diagrams.
It is suitable when:

• The building is small or simple

• The layout has fewer fire safety elements

• The diagram remains clear and readable from normal viewing distance

This size is often used for door-mounted evacuation plans or compact areas.

A3 Size (297mm × 420mm) — Recommended Standard

A3 is the most widely preferred size globally because it offers better clarity and more room for mandatory safety details.

This size is ideal for:

• Offices

• Schools

• Apartments

• Hotels

• Public buildings

• Medium-size commercial facilities

A3 allows easy placement of essential elements such as the “You Are Here” point, exits, fire equipment, legends, assembly points, and site details.

A2 or Larger (420mm × 594mm and above) — For Complex Sites

For larger or complex facilities, we recommend A2 or custom larger sizes.

Best suited for:

• Shopping malls

• Hospitals

• Manufacturing plants

• Airports

• Large educational campuses

• Multi-building sites

Bigger diagrams ensure visibility and readability of detailed layouts.

General Global Guidelines

Across most countries, the following practices remain common:

• Clear visibility is prioritised over size

• Diagrams must include all mandatory safety elements

• Plans are often laminated or framed before installation

• Typical mounting height ranges from 1200mm to 1600mm above floor level (varies by region)

Summary for FireEscapePlans.com

• A4 (Minimum Size) — For simple/small facilities, door-mounted plans

• A3 (Recommended Standard) — Offices, schools, hotels, apartments, commercial buildings

• A2 or Larger — Complex layouts like hospitals, airports, large shopping centres

We design and deliver evacuation diagrams that meet your country’s safety requirements, ensuring clarity, compliance, and professional presentation.