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Low Clearance Height Advisory Warning Sign
Low Clearance Height Advisory Warning Sign
Item Description:
Low Clearance Height Advisory Warning Sign
Part Code:
RW-W12-2 Series
Price: (each)
$46.12 (20 to 49 pieces)
$42.37 (50+ pieces)
Average Rating:

Info & Usage Specs

Heavy duty alodized aluminum construction makes this sign durable & fit for long term exterior use, will not rust.


Laminated with 3M Engineer Grade Prismatic (EGP) reflective sheeting for high visibility both day & night.  Upgrade to 3M High Intensity Prismatic (HIA) for an even brighter, longer optimum reflective performance!


Pre-punched holes at center top/bottom for fast & easy mounting.

  • Alerts road users of clearance height from roadway surface to bottom of overpass, bridge, or obstruction.
  • Ideal sign for parking garages, repair shops, or where ever overhead ceiling height is a concern.


Size/in. 24 x 24
Weight 6lbs
Graphics Black Vinyl Roll
Color Black
Face Material: White 3M (EGP)
Alum Panel: Gauge/Alloy 080"/5052-H38
Corners 1.5" Radius
Mounting 3/8" Holes

Type I Reflectivity Level (EGP)

3M Reflectivity Bulb
Optimum Performance/yrs.


Data Product Bulletins & Notes

Street Sign USA's Diamond MUTCD Sign Shape Dimensions

Size A B C
24" x 24" 24" 12" 1.5"
30" x 30" 30" 15" 1.875"
36" x 36" 36" 18" 2.25"


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



Size Recommendations: 

24 x 24 Private roads to facilites, compounds, etc 
30 x 30 Local streets or roadways 35mph or less
36 x 36 Multi lane conventional roads

See Table 2C-2 of the MUTCD for more info on size requirements.



3M Reflectivity Bulb3M Reflectivity BulbType III High Intensity Prismatic (HIA)


Additional Sizes/in. 30 x 30 36 x 36
Weight 9lbs 13lbs
Reflective Upgrade 3M (HIA)
Optimum Performance/yrs.
Reflectivity Level 3M Reflectivity Bulb3M Reflectivity Bulb
Customizable Legend Height:  ft./in.
Additional Lead Time 1-2 days

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


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


The 30" & 36" signs in the (HIA) have been specified to meet the U.S. DOT Federal Highway Administration's MUTCD standards.

This sign is listed in section 2C.27 of the MUTCD.  To learn more about this sign and other Warning Signs, click here



This custom made item normally ships within 7-10 business days!
Please select one of our standard clearance heights for your sign
or check the box below and enter your custom height in feet and inches.
Please select the size of your sign
Please select the reflectivity level of your sign
Your Price:
Low Clearance Height Advisory Warning Sign - RW-W12-2 Series. Fast shipping | Made in the USA | Order your Low Clearance Height Advisory Warning Sign today.
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