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See the Difference at Night
In daylight, 3M reflective sheeting grades can look very similar. At night, the difference is dramatic. The photo compares Engineer Grade on the left, High Intensity Prismatic in the center, and Diamond Grade on the right under headlight illumination. For higher-speed roads, critical intersections, and locations where nighttime visibility matters most, Diamond Grade provides the brightest, most visible sign.
Square Galvanized Steel Posts – 8′
Ordering 100+? Contact us for volume pricing.
Square Galvanized Steel Posts – 8' are used as part of a sign-support, mounting, or installation assembly. Choose the available configuration that fits the installation and visibility requirements.
- Gauge: 12 Gauge and 14 Gauge
- Available in 12 gauge and 14 gauge and 1-3/4", 2" and 2-1/4" square outside dimensions
- 7/16" holes 1" on center run the full length of the post
- Signs can be mounted back to back at any height, and at opposite angles if staggered heights
- Available in a variety of gauge and length options
The Square Galvanized Steel Posts – 8' provide the structural support used to mount compatible traffic, parking, street-name, or property signs.
This version has a galvanized finish for a traditional corrosion-resistant sign-post surface.
Confirm compatibility with the post, sign substrate, bracket, fasteners, and mounting method used in the complete assembly before installation.
Product Specifications
- Gauge: 12 Gauge and 14 Gauge
- Available in 12 gauge and 14 gauge and 1-3/4", 2" and 2-1/4" square outside dimensions
- 7/16" holes 1" on center run the full length of the post
- Signs can be mounted back to back at any height, and at opposite angles if staggered heights
- Available in a variety of gauge and length options
Additional information
| Gauge | 12 Gauge, 14 Gauge |
|---|---|
| Outside Dimensions | 1-3/4" x 1-3/4", 2" x 2", 2-1/4" x 2-1/4" |
Outsmart the Dark with 3M Diamond Grade DG3 Reflective Sheeting
Where Diamond Grade Makes the Biggest Difference
Some locations are more challenging for drivers because road conditions or layout can leave less time to react. 3M Diamond Grade DG3 is engineered to return more light from vehicle headlights back toward the driver, helping signs stand out sooner and from farther away. It’s an ideal choice for:
Sharp curves and blind corners
Hills and winding roads with limited sight distance
Hidden or unexpected intersections
Warning signs that are easy to overlook
Watch the video to see how Diamond Grade can improve sign visibility in higher-risk locations.
Video courtesy of 3M.
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