Our 3″x 3″x 10 ft. Black Steel Inground Post provides a solid foundation for secure and visually striking fencing systems. Specifically, it is made from pre-galvanized Q195/Q235 steel tubing, which offers heavy-duty load-bearing capacity and advanced corrosion resistance, ensuring long-lasting stability in various environmental conditions. Furthermore, its dual-layer protective finish, featuring a galvanized base and a durable baked-on powder coating, shields against rust, UV damage, and abrasion while maintaining its elegant black appearance.
Similar to our Aluminum In-Ground Post, this post features a U-channel design for seamless integration with Sinotop Fence steel fencing. Consequently, it offers flexibility to adapt to various terrains with an adjustable top rail configuration or stepped mounting. With a substantial total length of 10 ft, it ensures optimal below-ground anchoring for enhanced stability, while its 6 ft above-ground height meets standard fencing requirements. Additionally, the included post cap not only enhances the overall look but also prevents moisture infiltration at the top.
For added customization, the post is available in standard black or tailored RAL colors to suit specific design preferences. Moreover, clients can also request custom sizing to accommodate unique project specifications, making it suitable for both residential and commercial applications. Pre-drilled mounting points facilitate easy bracket installation. Crucially, an included hardware kit contains essential components such as brackets, bolts, caps, and screws. Finally, point welding for quick assembly or full welding for permanent reinforcement allows for adaptability to various installation needs.
As an essential component of zinc-enriched powder-coated fencing systems, this Steel In-Ground Post comes with a 10-year corrosion resistance guarantee, making it ideal for high-security perimeters, landscaped boundaries, or decorative enclosures. Its maintenance-free design, terrain-conforming adaptability, and customizable features make it a premium choice for projects that demand structural reliability, aesthetic coherence, and long-term value.
Steel Inground Fence Post Detail

- Dimensions: 3″x 3″x 10 ft.
- Durability: Heavy-duty load-bearing capacity ensures stability and strength.
- Protective Finish: Dual-layer coating with a galvanized base and powder coating. Guards against rust, UV damage, and abrasion while maintaining a sleek black finish.
- Height and Anchoring: Total length of 10 feet for optimal below-ground anchoring. 6-foot above-ground height aligns with standard fencing requirements.
- Moisture Protection: Includes a post cap to enhance aesthetics and prevent moisture infiltration.
Black Steel Inground Fence Post Specifications
| Material |
Pre-galvanized tube Q195 Q235 |
| 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 |
Steel Inground Fence Post Product Advantages
Industrial-Grade Material
Constructed from pre-galvanized Q195/Q235 steel tubing for superior strength and corrosion resistance.
Dual-Layer Protection
Combines galvanized base with baked-on powder coating for rust prevention and UV/abrasion resistance.
Terrain Adaptability
U-channel design supports adjustable top rail or stair-step installation on uneven surfaces.
Welding Flexibility
Compatible with both temporary (point welding) and permanent (full welding) installation methods.
Customization Options
Available in standard black or custom RAL colors; accommodates tailored sizing requests.
Low Maintenance
Powder-coated finish retains color integrity and requires no repainting.
Multi-Scenario Use
Ideal for residential security, commercial perimeters, and decorative fencing frameworks.
Black Steel Inground Post Production Process

Material
High-quality steel 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 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.
Steel Inground Post Application
- Residential Fencing: Backyards and garden fence posts, providing a secure boundary for homes, enhancing privacy and safety while complementing landscaping.
- Commercial Security: Ideal for businesses needing to secure their premises, protecting assets, and deterring unauthorized access, such as parking lots and shops.
- Warehouse and Factory Boundaries: Offers a durable solution for securing industrial sites, protecting against theft and vandalism.
- Athletic Fields: Used to enclose sports fields, providing safety for players and spectators while defining the playing area.
Steel 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.