3 inch diameter smooth aluminum sign post 3/4 view
3" Diameter Smooth Aluminum Sign Post with other sized poles for comparison
direct burial post diagram

Product Code: SM-0308

3" Diameter Smooth Aluminum Sign Post

Regular price $107.00
Usually Ships within 2-6 Weeks
Shipping calculated at checkout.

3" outer diameter, smooth aluminum sign post, black finish. Order in different lengths for your needs. To install, bury 2 feet under ground for best results.

Note: Posts over 8ft in length ship via LTL Freight. Learn More.

Signature Streetscapes Sign and Lighting Posts

Various applications include being used as a sign post or light post! This aluminum sign post has a 3" outer diameter, with smooth surface tubing extruded out of solid aluminum. Each sign post has a wall thickness of .125" and is structurally very strong. The sign post is coated with the highest grade powder coat finish, providing a long lasting rust-free finish that will endure for many years. Additional colors and heights are available upon request, call for details. We also have the capability to match custom PMS and RAL numbers.

The 3 inch smooth sign posts can be "Direct Buried" and are "Break Away" compliant. Installation instructions for various applications of sign and light posts are available for download.


Post Heights

Choose your post height carefully. Be sure to include enough room for all sign/lighting components including a minimum direct burial depth of 24"-30".



Posts over 8 ft long ship via a LTL Freight Carrier. Order quantities of more than 4 posts will ship on a skid. Order quantities under 4 posts will ship packaged in a bundle. Shipment costs are emailed to you within 1 business day of purchase. Please be aware that LTL Freight Shipping costs can range from $250-$850+ depending on the delivery location as well as the size, weight and number of packages.

Product Specs

  • 3" Outer Diameter
  • Wall Thickness = .125"
  • Made of Extruded Aluminum Alloy 6063

*See description tab for more details and downloads tab for installation instructions.