The most reflective sheeting is diamond grade retroreflective. Diamond grade sheeting is the best choice for roadways, as it offers the highest visibility from the furthest distances. Diamond grade retroreflective sheeting also lasts the longest, making it the best investment long-term.
Signs with diamond grade sheeting can generally be seen from as far as 1500 feet away and are 10 times as bright as standard EG sheeting. Diamond grade sheeting’s high visibility makes it a great fit for potentially hazardous intersections, high traffic areas, and large signs that need to be seen from a distance.
Below is a simple chart that shows the benefits of each type of retroreflective sheeting:
Sheeting | ATSM D4956 Type | Brightness | Visibility at Night | Ideal Uses |
Engineering Grade | Type I | 1x | 500ft | parking lots and private drives |
High Intensity Prismatic | Type IV | 3x | 1000ft | low traffic roadways |
Diamond Grade | Type IX | 10x | 1500ft | moderate to heavy traffic roadways |


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