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  3. Utility Work Ahead Roll-Up Construction Signs - W21-7-RU
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Sign Specifications

MUTCD Code

W21-7-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

Utility Work Ahead Roll-Up Construction Signs - W21-7-RU

Utility Work Ahead Roll-Up Construction Signs - W21-7-RU
Min: 1 • Max: 1000
Unit Price:$0.00
Quantity:× 1
Total:$0.00

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Product Details

Utility Work Ahead Roll-Up Construction Signs - W21-7-RU

High-visibility utility work signs are critical for maintaining safety and regulatory compliance on construction sites. These W21-7-RU roll-up signs feature reflective aluminum blanks designed to alert drivers to upcoming utility work zones, significantly reducing accident risks. Constructed with durable aluminum and meeting both DOT and MUTCD federal and state standards, these signs provide maximum visibility in all lighting conditions. The innovative roll-up design allows for quick installation, easy transportation, and convenient storage, making them an essential tool for construction and utility professionals who prioritize worker and driver safety. The standard punched reflective blanks ensure drivers are well-informed about upcoming work areas, helping to create a safer, more organized work environment. Compliant with high-intensity and diamond grade reflectivity requirements, these signs represent a professional approach to roadside safety signage.

Spec • 2026
MUTCD Compliant