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Workers Construction Sign
Workers Construction Sign
Item Description:
Workers Construction Sign
Part Code:
CS-W21-1B Series
Price: (each)
$97.00 (2 or more)
Average Rating:

Info & Usage
  • Heavy duty alodized aluminum construction makes this sign durable & fit for long term exterior use, will not rust.
  • Pre-punched holes at center top/bottom for fast & easy mounting

For use in construction, work zone, and road paving areas.


Also available in 3M High Intensity Prismatic (HIA) and 3M Diamond Grade fluorescent orange (DGo) reflective sheeting for upgrading to MUTCD compliance. 


Data Specs

Street Sign USA Diamond MUTCD Sign Shapes

Diagram 1 Diagram 2
Size A B C D
30" x 30" 1 30" 15" 1.875" -
36" x 36" 1 36" 18" 2.25" -
48" x 48" 2 48" 15" 15" 3.75"


Size/in. 30 x 30 
Weight 9lbs
Graphics UV Ink Droplets
Ink Color Black
Face Material: Orange 3M CW80
Alum Panel/Gauge & Alloy .080"/5052-H38
Radius Corners Standard Federal


3/8" holes 

Type I Reflectivity Level (CW80)

3M Reflectivity Bulb

Optimum Performance/yrs.



Street Sign USA Color Wheel Questions about the various levels of brightness?  Learn more by viewing our color reflectivity chart.
D.O.T. Compliance

Product Bulletins & Notes

The HIA & DGo versions of this sign have been specified to meet the U.S. DOT Federal Highway Administration's MUTCD standards.

This sign is listed in the MUTCD.  To learn more about this sign and other Temporary Traffic Control devices, click here











This item normally ships within 2-4 business days from date of order!

Additional sizes & reflectivity levels are available for this item.  Please make your selections at bottom of page.


Size Recommendations:

30 x 30 Local streets or roadways 35mph or less
36 x 36 Multi lane conventional roads
48 x 48 Expressway or Freeways

See Table 6F-1 of the MUTCD for more info on size requirements.


Reflective Upgrades For All Sign Sizes:


3M Reflectivity Bulb3M Reflectivity Bulb Type III High Intensity Prismatic (HIA) 

3M Reflectivity Bulb3M Reflectivity Bulb3M Reflectivity Bulb Type VII Diamond Grade (DGo)


Additional Specs 

Size/in. 36 x 36 48 x 48 Reflectivity
Weight 13lbs 23lbs -
3M HIA  a a 3M Reflectivity Bulb3M Reflectivity Bulb
3M DGo a a 3M Reflectivity Bulb3M Reflectivity Bulb3M Reflectivity Bulb

Optimum Performance/yrs.

Additonal Lead Time  2-3 days  2-3 days -

Refer to MUTCD Table 2A-3 on minimum retroreflectivity levels.

Please select the size of your sign
Please select the reflectivity level of your sign
Your Price:
Workers Construction Sign - CS-W21-1B Series.  MUTCD DOT Compliant | Made in the USA | Order your Workers Construction Sign from streetsignusa.com today.
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