4" smooth aluminum sign post illustration with circle shape to represent end view and 3/4 view of tube
4" Diameter Smooth Aluminum Sign Post
4" Diameter Smooth Aluminum Sign Post
4" Diameter Smooth Aluminum Sign Post with other sized poles for comparison
direct burial post diagram

Product Code: SM-0408

4" Diameter Smooth Aluminum Sign Post

Regular price $124.50
Usually Ships within 2-6 Weeks
/
Shipping calculated at checkout.

4" 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.

 3

4" Diameter Smooth Aluminum Sign Post

The 4" Diameter Smooth Aluminum Sign Post combines simplicity, strength, and versatility, making it an ideal choice for a wide range of signage applications. Its smooth, streamlined design offers a modern aesthetic while providing exceptional durability to withstand outdoor elements.

This post is crafted from high-quality aluminum, ensuring resistance to rust and corrosion for long-lasting performance in any environment. Whether it’s for municipal streetscapes, private properties, or commercial spaces, this post is a reliable and functional solution. Available in multiple lengths and finishes, it can be customized to suit your unique project needs.

 

 

 

 

 

  

 

 

Handcrafted in Michigan

With over 60 years of signs manufacturing experience, we are your complete source for high quality, durable sign posts, made in the USA. Please consult with your county or local municipality for guidelines and regulations for signpost installation.

    

Specifications

  • Material: Premium-grade aluminum for lightweight strength
  • Diameter: 4 inches
  • Lengths: Multiple sizes available to accommodate different project needs
  • Finish Options: Powder-coated in black for durability and style
  • Weight: Lightweight construction for easy handling and installation
  • Compatibility: Designed to work with standard mounting hardware and signage brackets

   

Durability and Maintenance

Built with strength and longevity in mind, this aluminum post can handle even the harshest outdoor conditions. The rust-resistant material and durable powder-coated finish ensure that it maintains its appearance and structural integrity for years to come.

To maintain its sleek appearance, simply clean the post periodically with mild soap and water to remove dirt and debris. For minor scuffs or scratches, touch-up paint can be applied to restore its finish. With minimal upkeep, this post will remain a strong, dependable component of your signage system.

 

Sustainability

Aluminum is not only durable but also sustainable. It is 100% recyclable without losing quality, making it a greener choice for signage projects. Additionally, its lightweight nature reduces fuel consumption during transportation, further lowering its environmental impact.

By choosing the 4" Diameter Smooth Aluminum Sign Post, you’re investing in a long-lasting product that supports eco-friendly practices and reduces waste.

 

FAQs

What signs are compatible with this post?
4" Diameter Smooth Aluminum Sign Post is compatible with most standard MUTCD-compliant signs and custom signage brackets. Contact us for specific recommendations!

How deep should I bury the post for installation?
We recommend burying 2 feet of the post underground and securing it with concrete for optimal stability.

Are decorative bases or caps available?
Yes! We offer a variety of decorative bases and caps to enhance the appearance of your post.

Can the post be cut to a custom length?
Yes, the 4" Diameter Smooth Aluminum Sign Post can be cut to a custom length if needed. However, we recommend using a professional service to ensure a clean and precise cut.

Does this post come pre-drilled for mounting?
No, the post does not come pre-drilled to allow for maximum flexibility in mounting your signs. You can easily drill holes as needed to suit your specific signage requirements. If you need assistance, our team can guide you through the process.

 

 

Signature Streetscapes Sign and Lighting Posts

Various applications include being used as a sign post or light post! This aluminum sign post has a 4" outer diameter, with smooth surface tubing extruded out of solid aluminum. Each sign post has a wall thickness of .120" 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.

These sign posts can be "Direct Buried" and be "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".

 

Shipping

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 4 posts or less 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

Every detail of the 3" Diameter Smooth Aluminum Sign Post is designed to deliver exceptional performance and adaptability. From its durable construction to customizable lengths and finishes, this post offers the perfect combination of style and functionality for a variety of signage applications. Explore the specifications below to find the ideal fit for your project.

  • 4" Outer Diameter
  • Wall Thickness = .120"
  • Made of Extruded Aluminum Alloy 6063
  • Multiple sizes available to accommodate different project needs
  • Powder-coated in various colors for durability and style
  • Lightweight construction for easy handling and installation
  • Designed to work with standard mounting hardware and signage brackets

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

 

Download our Sign Post Installation Guide (PDF) → 

Installing your 4" Diameter Smooth Aluminum Sign Post is straightforward. Here’s what you need to know:

  • Tools Required: Standard installation tools such as a level, wrench, and concrete anchors.
  • Optional Accessories: Pair with decorative bases and caps to complete your signage system.
  • Pre-Assembled Options: For added convenience, we can pre-assemble the post with your signage before shipping.

Please consult with your county or local municipality for guidelines and regulations for signpost installation.

Applications

The 4" Diameter Smooth Aluminum Sign Post is perfect for a wide range of applications, including:

  • Residential Areas: Add a polished look to neighborhood street signage.
  • Commercial Properties: Elevate the appearance of business parks, shopping centers, and office complexes.
  • Municipal Streetscapes: Designed for durability in high-traffic areas like city streets and public spaces.
  • Parks and Recreational Areas: Create a cohesive, stylish look for walking paths, trail markers, and parking lots.

Key Features

Discover what makes the 3" Diameter Smooth Aluminum Sign Post a standout choice for your signage needs:

  • Sleek Appearance: A smooth, minimalist profile that fits seamlessly into modern and traditional environments.
  • High-Quality Aluminum: Lightweight yet incredibly durable, designed to resist rust and corrosion.
  • Customizable Options: Available in various lengths and powder-coated finishes to match your project’s aesthetic.
  • Weather-Resistant: Powder-coated finish protects against fading, chipping, and harsh weather conditions.
  • Versatile Compatibility: Works with a wide range of signs and brackets, making it suitable for multiple applications.