No Parking Sign (R8-3a)
White regulatory sign prohibiting parking. Mounted curbside and in lots to mark general no-parking areas.
Two sizes, two prismatic reflective grades — $37.95 to $73.92 per sign, or from $34.16 at volume.
- 5 to 9
- $36.05
- 10 +
- $34.16
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R8-3a-1218-HIP(None)Designed in accordance with the MUTCD design standards, on rust-proof .080" aluminum.
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All R8-3a prices
Every size and sheeting combination. Click to select.
| Size | High Intensity Prismatic | OmniCube™ Full Cube |
|---|---|---|
| 12 x 18 | $37.95 each (1-4) 5-9: $36.05 10+: $34.16 | $48.51 each (1-4) 5-9: $46.08 10+: $43.66 |
| 18 x 24 | $65.67 each (1-4) 5-9: $62.39 10+: $59.10 | $73.92 each (1-4) 5-9: $70.22 10+: $66.53 |
R8-3a Sign Specifications
| Legend: | NO PARKING |
|---|---|
| Sign Code #: | R8-3a |
| Shape: | Vertical Rectangle |
| Color: | RED on WHITE |
| Available Sizes and Weights: | Size: 12 x 18; Ship Weight: 1.9 lbs |
| Size: 18 x 24; Ship Weight: 3.7 lbs | |
| Available Styles: | High Intensity Prismatic Reflective on .080" Aluminum |
| Full Cube Prismatic Reflective on .080" Aluminum | |
| Full Description: | R8-3a has a white background color. The text and border are red and it is in the shape of a vertical rectangle. |
R8-3a Purpose and Use
The R8-3a No Parking sign is the compact federal standard for a general parking prohibition.
Use it wherever a compact general prohibition fits, and add an R8-3a series placard to narrow it to hours, loading, or shoulder use.
R8-3a Questions
When is the compact R8-3a the right no parking sign?
Where space is tight or a general prohibition is all that is needed. Adding an R8-3a series placard then narrows it to hours, loading, or shoulder use.
How does the R8-3a differ from the R7-1?
The R7-1 states No Parking Any Time explicitly. The R8-3a is a shorter general prohibition intended to be qualified by a placard beneath it.
R8-3a Important Information
The purpose of No Parking Signs (MUTCD R8-3a) is to designate areas where parking is prohibited, ensuring proper traffic flow and adherence to local parking regulations.
MUTCD R8-3a Guidance
R8-3a Reflective Sheeting Options
Because the R8-3a is often posted along open curbs and travel lanes where drivers approach at speed, the T-11500 OmniCube - up to 60 percent brighter with a 12-year outdoor durability rating - is the safer choice when night visibility matters most, while the T-6500 High Intensity Prismatic delivers proven 10-year durability.
- Most Common Reflective Finish
- Very Reflective At Night
- Required for Most Highway Signs
- 10 Year Outdoor Durability
- Brightest and Most Visible
- Most Reflective At Night
- Up to 60 percent brighter than HIP
- 12 Year Outdoor Durability
The R8-3a puts a red legend on a white reflective background, and white returns more light than any other color under ASTM D4956, so nearly the entire face lights up under headlights. That is why stepping up to the T-11500 OmniCube produces such a visible change on this sign: you are brightening the color that already dominates the sign face.
Compare T-6500 and T-11500 OmniCube retroreflectivity, durability and warranty →
R8-3a Mounting Hole Pattern and Spacing
The R8-3a has mounting holes on the vertical centerline, equally spaced from the top and bottom edges: the standard pattern for u-channel and square post mounting.
Products commonly purchased with this sign
Sign Posts
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Sign Installation Hardware
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