Crafted from aluminum, the 3″x 3″x 10 ft. Black Aluminum Inground Post is impervious to warping, corrosion, and rot. That will maintain its structural integrity for decades. Just like our black aluminum flanged posts, it has a lightweight yet robust build that effortlessly integrates with Fence Vertical, Horizontal, or Traditional kits. It forms a sturdy framework capable of withstanding extreme weather conditions.
The post comes with a powder-coated finish that offers double-layer protection. A zinc-enriched base layer acts as a shield against galvanic corrosion. A baked-on topcoat ensures that the color remains vibrant even in high-UV environments. Its precision U-channel engineering enables it to adapt easily to different terrains. The pre-drilled mounting points simplify the assembly process.
To further enhance the installation, a comprehensive hardware kit is included, featuring brackets, bolts, nuts, and screws. The post is available in standard black or can be customized in RAL colors to match different architectural styles. With a 6 ft above-ground height and a 4 ft buried depth, it maximizes stability. The integrated cap at the top prevents water from accumulating, which could otherwise cause damage.
By substituting traditional wood posts, this corrosion-proof system offers a fencing solution that lasts a lifetime. It eliminates the need for resetting, straightening, or repairs. Whether it’s for residential properties, commercial sites, or decorative gardens, it combines industrial-grade strength with refined aesthetics, delivering boundary solutions that are built to endure.
Inground Fence Post Detail

- The powder-coated surface offers dual protection against electrochemical corrosion and fading.
- The precise U-channel design effortlessly adapts to uneven terrain.
- Pre-drilled mounting points, along with a complete hardware kit, including brackets, bolts, nuts, and screws, streamline the assembly process.
- Enjoy the flexibility of choosing between spot welding or full welding for your installation.
Aluminum Inground Post Specifications
| Material |
Aluminum |
| Accessories |
brackets, bolt&nut, screws |
| Welding |
Point welding or full welding |
| Height (in.) |
124 |
| Width (in.) |
3 |
| Depth (in.) |
3 |
| Color |
Black or RAL color on your request |
| Finish |
Powder Coated |
Aluminum Inground Post Advantages
Zero Corrosion
Crafted from aerospace-grade aluminum, this material is resistant to rust, rot, and warping, ensuring lifetime durability.
Ultra-Lightweight
Designed for easy handling and installation while maintaining exceptional structural strength.
Weatherproof Design
The powder-coated finish protects against fading, chipping, and UV degradation.
Slope Adaptation
The U-channel profile allows for adjustable or stair-stepped installations on uneven terrain.
Pre-Drilled Mounting
Assembly is simplified with included brackets, bolts, nuts, and screws.
Custom Color Options
Available in standard black or customized RAL colors to suit any design aesthetic.
Maintenance-Free
No need for repainting, sealing, or straightening after installation.
Universal Compatibility
Seamlessly integrates with Sinotop Vertical, Horizontal, or Traditional fence kits.
Permanent Framework
Provides a warp-proof, shrink-proof foundation that eliminates the need for post replacement.
Aluminum Inground Post Production Process

Material
High-quality steel pipes or aluminum pipes, ensure that the raw materials meet the relevant standards.
Pipe Cutting
Cut according to the design requirements to form the basic structure of the Fence Post.
Whip Blasting
Cleaning and roughening the surface by spraying high-speed abrasive particles onto the surface of the workpiece through compressed air.
Surface Pretreatment
The phosphating film itself has a certain anti-corrosion ability. Chromizing forms a dense oxide film on the surface of the aluminum product.
Powder Coating
Spray epoxy-polyester powder on the surface, and cure it at a high temperature. This process makes the product more rust-proof and corrosion-resistant.
Quality Control
We will conduct a quality inspection on each product to check the strength, wall thickness, and powder coating thickness to ensure the quality stability.
Packaging
Professional transportation methods ensure the safe transportation of products.
Black Aluminum Inground Post Application
- Garden/Courtyard Fencing: Used to separate landscaped areas, protect plants, enhance privacy, and enhance yard beautification.
- Boundary Demarcation: Defines property boundaries and increases security.
- Office Buildings/Business Parks: Used to define building perimeters, beautify entrance areas, and provide security barriers.
- Parks and Green Spaces: Used to demarcate activity areas, protect sensitive plants, and provide landscape barriers.
- Schools and Playgrounds: Provides safe, durable fencing to protect students and children.
- Seaside Resorts/Coastal Buildings: Its excellent corrosion resistance makes it an ideal choice for coastal environments.
- Coastal Areas: Resists salt spray corrosion and is an excellent alternative to traditional metal or wood posts.
- Landscapes requiring low maintenance: Saves long-term maintenance costs and time.
Black Aluminum Inground Post Packaging

- To ensure your order arrives in perfect condition, we employ a robust packaging process.
- Each product is carefully wrapped in medium-thick stretch film, and cardboard protection is added to prevent damage during transit.
- We understand the importance of efficient unloading. That’s why our products are palletized, allowing your team to easily unload them using a forklift. In addition, all bulk products are individually packed in cardboard to prevent scratching and maintain their pristine condition.
- We utilize reliable sea shipping for fast and stable transportation. This ensures that your order arrives promptly and safely, minimizing any potential delays.