Aluminum Worker Construction Sign (W21-1A)
The Aluminum Worker Construction Sign (W21-1A) features two top and bottom centered, pre-punched mounting holes and can be easily installed on a post, wall, or fence. Used to warn drivers that construction workers may be present around or on the designated roadway. With standard federal radius corners and 3M™ reflective sheeting, this sign meets MUTCD specifications and is designed to be a durable safety solution.
Features:
- 5052-H38 alodized aluminum for durability and corrosion resistance.
- 3/8” mounting holes for quick and easy installation.
- Standard radius corners meet federal requirements.
- MUTCD identifier W21-1A.
- 3M™ reflective sheeting.
Options:
|
Size
|
Best For
|
|
30” x 30”
|
For conventional roads and is the minimum size required for official street applications. (MUTCD Compliant)
|
|
36” x 36”
|
For high-speed roads and is the minimum size for multi-lane approaches.
|
|
48” x 48”
|
For work zones or where high speed or traffic volume requires increased emphasis, improved recognition, or increased legibility.
|
Reflectivity Level:
|
Grade
|
Sheeting
|
|
Engineer Grade (EG)
|
Increases visibility of signs when light hits their surface. Ideal for parking lots and driveways.
|
|
High Intensity Prismatic (HIP)
|
Enhances visibility when viewed at an angle. Recommended by MUTCD as the “best practice” reflective option for roadways and other high traffic areas.
|
Specifications:
|
Corners
|
standard federal radius
|
|
Finish
|
reflective
|
|
Hole diameter
|
3/8"
|
|
Hole placement
|
top and bottom centered
|
|
Hole quantity
|
2
|
|
Legend
|
Worker Construction
|
|
Material
|
aluminum
|
|
Shape
|
diamond
|
|
Thickness
|
0.80"
|
|
MUTCD Identifier
|
W21-1A
|
|
Ink Color
|
black
|
|
Sheeting color
|
orange
|
More Construction Signs
LOGIN 
