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  1. Home
  2. Regulatory Signs
  3. Speed Limit Sign - R2-1

Speed Limit Sign - R2-1

Speed Limit Sign - R2-1
Min: 1 • Max: 1000
Unit Price:$0.00
Quantity:× 1
Total:$0.00

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Choose Your Reflectivity Grade

Compare visibility, durability, and ideal applications

Type I

Engineering Grade

Ideal Use

Parking lots

Brightness

Standard

General Lifespan

7 years

Night-time Visibility

500 feet away

Type IV

High Intensity Prismatic

Ideal Use

Roadways

Brightness

High

General Lifespan

10 years

Night-time Visibility

1000 feet away

Type IX

Diamond Grade

Ideal Use

High-speed roadways

Brightness

Maximum

General Lifespan

10+ years

Night-time Visibility

1500 feet away

Product Details

Speed Limit Sign - R2-1

Speed limit signs are essential for regulating traffic and promoting driver safety on roadways. Constructed from durable aluminum with a reflective surface, these signs ensure maximum visibility during day and night, allowing drivers to quickly understand and comply with posted speed restrictions. Engineered to meet DOT and MUTCD standards, the R2-1 Speed Limit Sign features standard punched blanks for straightforward installation. Available in high-intensity and diamond grade reflective options, these signs are designed to withstand harsh weather conditions while maintaining clear, legible messaging that effectively communicates speed limits to motorists.

Spec • 2026
MUTCD Compliant

Sign Specifications

MUTCD Code

R2-1

Sign Type

Regulatory Sign

Shape

Rectangle (Vertical)

Standard regulatory sign shape

Colors

ABC

White background

Black legend

Compliance

MUTCD Compliant: Speed limit sign per MUTCD Section 2B.13.

SizeDimensionsApplication
Minimum18x24"Low-volume roads
StandardDefault24x30"Conventional roads
Multi-Lane30x36"Multi-lane roads
Expressway36x48"Expressways
Freeway48x60"Freeways
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 on the right side of roadway at the beginning of the speed zone.

MUTCD Reference: Section 2B.13

Reference: MUTCD Section 2B.13

Often Paired With

Signs commonly installed together per MUTCD guidelines

Speed Reduction Ahead Sign - W3-5

W3-5

Speed Reduction Ahead Sign

Speed Zone Ahead Sign - W3-5A

W3-5A

Speed Zone Ahead Sign

View All Regulatory Signs