Unistrut is a metal framing system for building support structures in construction and industrial projects. It consists of channels, fittings, and hardware that can be easily assembled without welding. Unistrut Channels, such as P1000, P1001, and P3300 and more come in various sizes and can be installed quickly using essential tools. Made from stainless steel, glavanize these channels have protective finishes to resist corrosion, making them durable and reliable. This versatile system is ideal for supporting pipes, conduits, and equipment in a wide range of applications.
Types of Unistrut and Their Uses
Strut channels come in various shapes and configurations to suit multiple applications. Here are some of the most common Unistrut types and their uses:
P1000 (Solid-Strut)
The most popular Unistrut, P1000, is a standard channel suitable for general framing and support applications. It is commonly used for supporting pipes, cables, and other building components.

P1001 (Back-to-Back Strut)
The P1001 has two standard channels welded together for extra strength. It can handle heavy loads and is perfect for industrial and structural work. Often used for overhead supports and framing in harsh environments.

P3300 (Shallow Strut)
This type of Unistrut has a shallow profile, making it ideal for tight or narrow spaces. It’s used for lightweight framing, equipment support, and small projects. Provides reliable support without taking up much space. Perfect for compact installations where space is limited.

P4100 (Deep Strut)
The P4100 has a deeper profile for added strength and support. It’s designed for heavy-duty applications and industrial projects. Often used to support heavy pipes, machinery, and structural.

P5000 (Slotted Strut)
Featuring pre-punched holes, the P5000 allows for easily attaching accessories and components. It’s perfect for adjustable framing and cable tray supports.

P5500 (Half-Slotted Strut)
The P5500 has slots on one side only, allowing precise alignment. It’s used for securely mounting equipment and components. Offers flexibility while ensuring proper positioning during installation. Ideal for applications needing controlled and accurate placement.

Fiberglass Strut
Made from lightweight, corrosion-resistant material, this strut is perfect for outdoor and harsh environments. It doesn’t rust or conduct electricity, making it safe for chemical plants and marine areas.

What Material is Unistrut Made From?
Unistrut is made of superior materials, such as steel or aluminum. In the manufacturing process, the metal is shaped into a specific channel profile that provides strength and versatility. Several Unistrut Finishes are plain, galvanized, powder-coated, and stainless steel. These protect against corrosion and further enhance durability. The result is a dependable support system with a smile on its face in terms of strength and resilience.

Aluminum Strut
This lightweight, corrosion-resistant Unistrut is perfect for moisture-prone areas. It’s non-magnetic and great for electrical insulation and sensitive environments. Often used in electronics, aerospace, and regions where weight matters.
Stainless Steel Strut
This Unistrut is made from rust-resistant stainless steel, which is ideal for harsh environments. It’s perfect for marine, chemical, and moisture-exposed applications. Provides long-lasting support even in challenging conditions.
Galvanized Strut
This Unistrut is coated with a layer of zinc for superior corrosion resistance. It’s ideal for outdoor, industrial, and high-humidity environments. Provides durable support in construction, electrical, and mechanical applications.
Available Sizes of Unistrut
Unistrut channels come in a variety of sizes to suit different structural needs. The most common sizes range from 1-5/8 inches in height to deeper profiles, depending on the required load-bearing capacity. Width and slot patterns are also variable, depending on the model.
How to Install Unistrut in 4 Simple Steps
- Plan & Mark – Measure and mark your layout to ensure proper placement and alignment.
- Cut to Size – Use a metal saw or cutting tool to trim the Unistrut to your desired length.
- Secure the Strut – Mount it to walls, ceilings, or floors using the right anchors and brackets.
- Attach Components – Slide in fittings, tighten hardware, and connect your equipment.
For more details and a complete installation guide, visit our blog.
How Much Weight Can Unistrut Hold?
The load capacity of a Unistrut metal framing system is dependent upon size, material, and configuration. Generally, once properly installed, it can support from hundreds to thousands of kilograms. For actual load ratings, always refer to the manufacturer’s specifications.
Outcome
Unistrut is a flexible framing system used in construction and industrial projects. It varies in types, materials, and finishes to meet the needs of various applications, light to heavy-duty support. These long-lasting solutions are easy to install and resist corrosion; therefore, perfect for permanent installations. Knowledge of the correct type of Unistrut and proper installation will contribute to safety and stability on any project.

Vikram Rao is a experienced Unistrut Product Specialist, who has worked in this field for more than 20+ years. His metal frame system and support structure knowledge has been quite helpful in creating creative ideas for building projects all around.
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