ASR A1.3

Floor Marking to ASR A1.3 - How to Do It Right?

Floor marking organises traffic routes, storage areas and hazard zones so they are visible and permanent. This guide explains the requirements of ASR A1.3 and DIN EN ISO 7010, the correct colour scheme, line widths and the choice between marking paint, tape and hard marking.

5 minStand: 2026-07Geprüft: Technical editors

View floor marking

5-10 cm

line width for routes

yellow/black

warning per ASR A1.3

≥ 0.45

slip resistance R value

ASR A1.3

governing rule

Inhalt

Rules and standards
Colours and meaning
Material and application
Frequently asked questions

What does ASR A1.3 require?

The German technical rule for workplaces ASR A1.3 defines how safety signage is designed and applied in a plant. It refers to the safety colours of DIN EN ISO 7010 and sets out which colour carries which meaning.

Traffic routes for vehicles must be permanently recognisable where safety and health require it. Marking uses a colour that clearly contrasts with the floor - typically yellow or white with a line width of at least 5 cm, and often 7.5 to 10 cm in vehicle traffic.

Safety colours are clearly assigned under ISO 7010: yellow-black warns of hazards, red marks prohibitions and fire protection, green stands for escape routes, and blue for mandatory actions.

Set up the workplace

Plan workplace equipment and stations to standard.

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Which colour for routes, areas and hazards?

A consistent colour system prevents misreading. Traffic routes are marked neutrally, while hazard zones use the eye-catching yellow-black or red-white warning pattern.

Yellow-black (45 degree hatching): permanent hazards, edges, impact protection.
Red-white: temporary or special prohibition zones and keep-clear areas.
White: general storage areas, racking zones and picking bays.
Green: escape routes and assembly points combined with pictograms.

Define the colour code once and document it. The marking then stays unambiguous for years, even when areas are added later.

Paint, tape or hard marking?

Material choice depends on load, substrate and required service life. Marking paint suits large areas, tape offers fast and flexible marking, and hard marking withstands forklift traffic the longest.

Clean, degrease and dry the substrate before applying.
Mind slip resistance: at least R11 in wet areas, or add grit to the paint.
With tape, choose bevelled edges so wheels and rollers do not lift it.
Set edges and numbering cleanly and repeatably using stencils.

For outdoor areas and ramps, UV- and weather-resistant 2K paints are the most durable solution. Indoors a high-quality marking tape that peels off cleanly is often enough.

Frequently asked questions

Is floor marking mandatory in a plant?

ASR A1.3 requires permanent marking of traffic routes and hazard points where safety and health demand it. The risk assessment determines the scope and execution.

What line width is correct?

Traffic routes need at least 5 cm, while 7.5 to 10 cm is common in vehicle traffic. The line must contrast clearly with the floor covering.

What does yellow-black on the floor mean?

The diagonally hatched yellow-black pattern warns under DIN EN ISO 7010 of permanent hazards such as edges, obstacles and impact points.

Paint or tape - what lasts longer?

2K marking paint and hard marking withstand forklift traffic the longest. Marking tape is faster to lay and flexible to renew, but less abrasion-resistant.

Floor marking for your plant?

We supply marking paint, tapes, stencils and hard marking to ASR A1.3 - including a colour system for routes, areas and hazard zones.

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To ASR A1.3

Colours and patterns follow the technical rule for workplaces.

Slip resistant

Materials with defined R values for wet areas.

Durable

Long-lasting solutions for forklift traffic and outdoor areas.

Expert advice

Our team supports planning and colour systems.