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  3. Mowers Ahead Roll-Up Construction Signs - W21-8-RU

Mowers Ahead Roll-Up Construction Signs - W21-8-RU

Mowers Ahead Roll-Up Construction Signs - W21-8-RU
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Product Details

Mowers Ahead Roll-Up Construction Signs - W21-8-RU

Construction site safety relies on clear, visible warnings that can prevent potential accidents. The Mowers Ahead Roll-Up Construction Signs provide essential communication for workers and passersby, utilizing reflective aluminum standard punched blanks that ensure high visibility even in low light conditions. These W21-8-RU signs meet DOT and MUTCD state and federal standards, delivering regulatory compliance with a practical design. Constructed from durable, high-quality materials, the signs are engineered to withstand challenging construction environments. Their roll-up functionality allows for convenient storage and transport across multiple job sites, making them a versatile safety solution for construction professionals. The high intensity and diamond grade signage offers maximum legibility and durability, with a design focused on clear communication of potential hazards. By providing advanced warning and meeting critical safety standards, these signs play a crucial role in protecting workers and the public in active construction zones.

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

W21-8-RU

Sign Type

Construction Sign

Shape

Diamond

Standard warning sign shape

Colors

ABC

Orange background

Black legend

Compliance

MUTCD Compliant: This work zone warning sign meets federal standards per MUTCD Section 6F.16. Orange background indicates temporary traffic control.

SizeDimensionsApplication
ConventionalDefault36×36"Low-speed work zones
Freeway48×48"High-speed work zones
Compliance & Certifications

MUTCD Compliant

Federal standards

DOT Approved

State & Federal

ASTM D4956

Type III/IV/XI

10+ Years

Durability

Engineer Grade (EG)

Type: ASTM Type I

Lifespan: 5-7 years

Brightness: ~50 cd/lux/m²

Parking lots, low-speed areas, non-critical signage

Recommended

High Intensity Prismatic (HIP)

Type: ASTM Type III/IV

Lifespan: 10 years

Brightness: ~360 cd/lux/m²

Traffic signs, work zones, roadways

Diamond Grade (DG3)

Type: ASTM Type XI

Lifespan: 10-12 years

Brightness: ~580 cd/lux/m²

Critical signs, freeways, overhead signs

Install in advance of work zone per MUTCD Chapter 6F. Orange background for temporary conditions. Remove or cover when work not in progress.

MUTCD Reference: Section 6F.16

Reference: MUTCD Section 6F.16

Often Paired With

Signs commonly installed together per MUTCD guidelines

Right Turn Arrow Sign - W1-1R

W1-1R

Right Turn Arrow Sign

Road Work (distance) Sign - W20-1

W20-1

Road Work (distance) Sign

Pedestrian Crossing Sign - W11-2

W11-2

Pedestrian Crossing Sign

Road Closed (distance) Sign - W20-3

W20-3

Road Closed (distance) Sign

Stop Ahead (Symbol) Sign - W3-1

W3-1

Stop Ahead (Symbol) Sign

Workers Ahead Sign - W21-1

W21-1

Workers Ahead Sign

View All Warning Signs