Patterns for Expanded Metal
Expanded metal is a versatile industrial material known for its strength, airflow and durability. One of its most important characteristics is the pattern created during the expansion process. The pattern directly affects performance factors such as load distribution, visibility, ventilation and rigidity. That’s why pattern selection is a critical step for industrial expanded metal projects.
Argus Steel supplies a wide range of expanded metal patterns to support functional, performance-driven uses across manufacturing, processing and infrastructure environments.
What Are Expanded Metal Patterns?
Expanded metal patterns are formed when a solid metal sheet is slit and stretched, creating a repeating arrangement of openings, or diamonds, connected by metal strands. The size, orientation and spacing of these openings determine how the expanded metal performs under load, airflow and contact conditions.
Standardized patterns can vary based on:
- Strand width and thickness.
- Short way of diamond (SWD).
- Long way of diamond (LWD).
- Sheet thickness and material type.
Standard vs. Flattened Expanded Metal Patterns
Expanded metal is often available in two primary forms, each with distinct pattern characteristics:
Standard (Raised) Expanded Metal
Standard expanded metal retains its three-dimensional profile after expansion. The raised strands add rigidity and slip resistance, making this pattern well-suited for industrial walkways, ramps, machine guards and platforms that require traction and strength.
Flattened Expanded Metal
Flattened expanded metal is cold-rolled after expansion to create a smooth, flat surface. This process reduces thickness while maintaining the pattern geometry. Flattened patterns are commonly used when you require a more uniform surface, such as for equipment enclosures, filtration screens and protective panels.
How Expanded Metal Patterns Impact Industrial Performance
Selecting the correct expanded metal pattern is essential for ensuring proper function in industrial settings. Pattern choice affects:
- Load-bearing capability. Smaller diamond openings with thicker strands typically offer greater strength.
- Airflow and drainage. Larger openings improve ventilation and fluid passage.
- Visibility and access control. Pattern size influences sightlines and physical access.
- Weight considerations. Open area percentage impacts overall material weight without sacrificing strength.
Common Industrial Applications and Materials
You may need different expanded metal patterns based on how you will use the material:
- Machine guards: Medium diamond patterns provide visibility while limiting access to moving components.
- Platforms and walkways: Raised patterns with thicker strands enhance traction and load support.
- Ventilation panels: Larger openings improve airflow while maintaining structural integrity.
- Protective screens and barriers: Pattern selection helps control access while allowing light and air to pass through.
We also offer expanded metal in a variety of industrial-grade materials, including carbon steel, galvanized steel, stainless steel and aluminum.
Why Buy Expanded Metal From Argus Steel?
As a metal products distributor, we maintain an extensive inventory of expanded metal sheets in a wide range of patterns. Our central East Coast location allows us to support fast turnaround times for industrial buyers across the Mid-Atlantic, Mid-South and beyond.
The benefits of working with us include:
- No minimum order requirements.
- Same-day shipping on stocked items.
- Next-day delivery in select regions.
- National and international shipping capabilities.
- Knowledgeable support for pattern and material selection.
Get Help Selecting the Right Expanded Metal Pattern
Choosing the right expanded metal pattern and size depends on your load requirements, environmental conditions and intended use. At Argus Steel, we provide expert guidance to ensure the pattern you select aligns with your operational needs.
Request a free quote today to get started.