Posts and accessories
Heavy-duty 3x3 in. square aluminum post, 8 ft. long with a .090" wall and black finish. Made from 6063-T6 aluminum for pedestrian gates, sliding gates and fence installations that need a sturdy post.
$147.03
HD Aluminum Post · .090″ wall
Strong and durable aluminum post designed for fencing, gates, and outdoor applications, offering long-term performance with a clean modern appearance.
The HD Aluminum Post is built for projects that require strength, reliability, and a modern finish. Manufactured from 6063-T6 aluminum, it provides solid structural support while remaining lightweight and easy to install.
This post is designed for outdoor use, resisting rust, corrosion, and weather exposure. Its black finish adds a clean and modern look while helping protect the surface over time.
Suitable for residential and commercial applications, it can be used for fencing, gates, railings, and other structural installations.
Size
3″ × 3″ × 8 ft
Wall thickness
.090″ HD
Alloy
6063-T6 aluminum
Finish
Black
Why aluminum
Built from high-quality aluminum for reliable durability.
Designed to withstand moisture and outdoor conditions without rusting.
Black finish provides a clean and stylish look.
Simple to handle compared to heavier materials.
Suitable for fences, gates, railings, and structural applications.
Requires minimal upkeep, with no need for painting or sealing.
Installation
Mark the installation location for each post.
Dig holes deep enough to support the post securely.
Place the post in position and ensure it is level and aligned.
Fill the hole with concrete and allow it to set fully.
Attach fencing panels, gates, or other components.
Check alignment and make final adjustments.
Tip: Use a post cap to protect the top and enhance the finished appearance.
Why this post
This aluminum post is designed to deliver consistent performance, durability, and a clean modern look. Its high-grade material ensures long-term reliability, even in outdoor environments.
Unlike traditional materials, it does not warp, rot, or corrode, making it a dependable solution for fencing and structural applications. Its lightweight design simplifies installation while maintaining strength.
Trusted by professionals and suitable for a wide range of uses, this post provides a cost-effective and long-lasting solution for modern construction and outdoor projects.
Questions
It is made from 6063-T6 aluminum, known for its strength and corrosion resistance.
Yes, the finish is designed to resist fading, peeling, and weather damage.
It is ideal for fencing, gates, railings, pergolas, and other outdoor structures.
Minimal maintenance is needed, just occasional cleaning.
Yes, aluminum is resistant to salt and moisture, making it suitable for coastal environments.
Yes, it can be installed by DIY users, though professional installation is recommended for larger projects.
Watch
Installation, product and factory videos from Aluglobus Aluminum Systems.
Specifications
Check sizes, material and configuration against your project before ordering.
Complete the system
Square aluminum posts (2×2, 3×3, 3.15 and 4×4 in.) with C-channel kits, C-channel and channel-cover spacers, press caps and base plates, as used on the Aluglobus fence kits and gates.
Choose the post size and wall thickness for the job (light duty or HD).
Match the cap to the post size (2, 3, 3.15 or 4 in.).
Add C-channel kits for each post face that holds slats, and the spacers that set the gap.
Decide between posts set in concrete and base plates (anchors sold separately).
Confirm color and lengths before ordering.
Ready when you are
Order online or send your project details for a factory-direct quote.
Limited Promotional Inventory
CONTRACTORS ONLY
Send us your information and our team will help you check available woodgrain colors, profiles and current promotional inventory.
Factory-direct pricing. Contractor-ready systems. Limited-time promo.
No stacking with other discounts.
Discover all our aluminum fences, gates, and cladding with full specifications and pricing. Enter your email below, and we’ll send the complete magazine straight to your inbox.
Log in