Orange Road Machinery Ahead Sign - Work Zone (W21-3)


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W21-3 Price

High Intensity Prismatic Reflective on .080" Aluminum
MATERIAL SIZE WORDING PRICE ADD TO CART Catalog Part #
This is an up close image of the following reflective material:  High Intensity Prismatic
High Intensity Prismatic

30" x 30"
High Intensity Prismatic
Road Machinery Ahead 1 to 2:
$109.45

3 to 5:
$98.51

6 +:
$93.03

SKU:W21-3-3030-HIP
W21-3-3030-HIP

36" x 36"
High Intensity Prismatic
Road Machinery Ahead 1 to 2:
$168.85

3 to 5:
$151.97

6 +:
$143.52

SKU:W21-3-3636-HIP
W21-3-3636-HIP

48" x 48"
High Intensity Prismatic
Road Machinery Ahead 1 to 2:
$263.89

3 to 5:
$237.50

6 +:
$224.31

SKU:W21-3-4848-HIP
W21-3-4848-HIP

In Stock - Usually ships same or next business day.

Fluorescent Orange Prismatic Reflective on .080" Aluminum
MATERIAL SIZE WORDING PRICE ADD TO CART Catalog Part #
This is an up close image of the following reflective material:  Fluorescent Orange Prismatic
Fluorescent Orange Prismatic

30" x 30"
Fluorescent Orange Prismatic
Road Machinery Ahead 1 to 2:
$126.28

3 to 5:
$113.65

6 +:
$107.34

SKU:W21-3-3030-FLO
W21-3-3030-FLO

36" x 36"
Fluorescent Orange Prismatic
Road Machinery Ahead 1 to 2:
$175.56

3 to 5:
$158.00

6 +:
$149.23

SKU:W21-3-3636-FLO
W21-3-3636-FLO

48" x 48"
Fluorescent Orange Prismatic
Road Machinery Ahead 1 to 2:
$279.40

3 to 5:
$251.46

6 +:
$237.49

SKU:W21-3-4848-FLO
W21-3-4848-FLO

In Stock - Usually ships same or next business day.

Fast shipping and Free Shipping on many traffic signs, roll-up signs and stands.

What is the purpose of the Road Machinery Ahead sign? It is used to warn drivers that they are approaching a section of road where heavy equipment is being used for construction or maintenance, signaling them to proceed with caution.

What does Road machinery mean? It refers to the various types of heavy equipment and vehicles specifically designed for constructing and maintaining roads and highways.

What are examples of road machinery? Examples include road rollers for compacting surfaces, asphalt pavers for laying asphalt, graders for leveling surfaces, excavators for digging and moving earth, and snowplows for clearing snow.


Road Machinery Ahead Sign Specifications

  • Sign is manufactured on durable rust-proof .080" aluminum
  • Pre-punched 3/8" mounting holes in top and bottom for easy installation.
  • Meets M.U.T.C.D. specifications for highway use.
See catalog page 56.

Available Reflective Finishes:

Pick traffic sign finish
  • Most common reflective finish used for traffic signs
  • Meets federal minimum requirements
  • 10 Year Outdoor Durability
Pick traffic sign finish
  • Brightest and most visible
  • Exceeds federal minimum requirements
  • 10 Year Outdoor Durability
Sign Posts
  • A galvanized u channel post
  • A picture of a green u channel sign post
  • A round post used to install signs
  • A picture of a square post that has holes from top to bottom

Sign Installation Hardware
  • A picture of different hardware used for sign mounting
  • Different break away hardware for safely install signs








W21-3 Sign Specifications

Legend: ROAD MACHINERY AHEAD
MUTCD Sign Code #: W21-3
Shape: Diamond
Color: BLACK on ORANGE
Available Sizes and Weights:Size: 30" x 30"; Ship Weight: 7.8 lbs
Size: 36" x 36"; Ship Weight: 11.2 lbs
Size: 48" x 48"; Ship Weight: 19.9 lbs
Available Styles:High Intensity Prismatic Reflective on .080" Aluminum
Fluorescent Orange Prismatic Reflective on .080" Aluminum
Full Description:

W21-3 has a orange background color. The text and border are black and it is in the shape of a diamond.

Mounting Hole Placement: Mounting Hole Diagram for Road Machinery Ahead Sign





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