Hollow Pipe (Holo): Definition, Types, and Applications

What is a Hollow Pipe (Holo)?

A Hollow Pipe, or Holo, is a steel tube with a square or rectangular cross-section. Although it is not round, it is still called a pipe because of its hollow interior. In the steel industry, the term “pipe” refers to all hollow sections, whether circular, square, or rectangular.

Hollow  sections are widely recognized in the construction industry for their strong structure, high precision, and versatile applications. This material is often chosen as a building framework, architectural support, and even as a base material for modern furniture that emphasizes both strength and aesthetics. 



Galvanized Hollow

Galvanized Hollow is coated with zinc to protect the steel from rust and corrosion. Because of its durability against moisture and weather, this type is commonly used for outdoor applications such as canopies, fences, railings, billboards, and roofing frames.

Applications of Hollow Pipes



The applications of hollow pipes are highly diverse, making them a top choice in various construction projects as well as interior design.

• In construction, hollow pipes are commonly used for canopies, ceiling frames, partitions, fences, stair railings, and lightweight steel roof structures.
• In the interior field, they are often utilized for tables, chairs, shelving, and home decoration elements.
• For outdoor use, galvanized hollow pipes are more recommended thanks to their resistance to weather and corrosion. Meanwhile, black hollow pipes are better suited for indoor applications, especially on structures that will be coated with additional finishing.

Hollow SPINDO: Trusted Steel Solution

As Indonesia’s largest steel pipe manufacturer, PT Steel Pipe Industry of Indonesia Tbk (SPINDO) produces high-quality hollow pipes products. Both Black Hollow SPINDO and Galvanized Hollow SPINDO are made with advanced technology, precise cutting, and strict quality control.



This quality has made hollow SPINDO a trusted choice for both government and private sector projects across Indonesia. With a complete range of sizes, superior durability, and guaranteed industry standards, SPINDO stands as the leading solution for construction needs and the national steel industry. 

Conclusion

Hollow pipes (Holo) are square or rectangular steel tubes that are still categorized as pipes due to their hollow structure. 

• Black hollow pipes are commonly used for indoor applications, such as ceiling frames, partitions, or furniture.
• Galvanized hollow pipes are more suitable for outdoor use, because of their protective coating that resist weather and corrosion.

By choosing SPINDO hollow pipes, you gain a steel product that is durable, highly precise, and proven in quality, trusted to support various construction projects and industrial needs across Indonesia.