Standard expanded metal
Standard expanded metal is a raised diamond mesh produced by slitting and stretching solid sheet without material waste. The strands remain raised and angled off the sheet plane, providing an inherently rigid, slip-resistant surface engineered for demanding industrial environments.
Zero-waste expansion: Continuous slit-and-stretch fabrication produces zero scrap metal compared to conventional punching.
One-piece integrity: Knitted structural bonds have no welds or joints to loosen under vibration or heavy impact.
Natural anti-slip: Raised diamond knuckles bite into footwear and wheel surfaces in wet, oily, or icy settings.
Dimensional specifications
Standard expanded metal is specified by diamond axis dimensions and strand geometry to match precise load capacities and open area requirements.
Precision-slit thickness for tailored weight-to-strength ratios
Standardized pitch across small to heavy industrial diamond apertures
Carbon Steel, Hot-Dip Galvanized, Stainless 304/316 & Mill Aluminum
Angled strands off sheet plane providing continuous multi-directional grip
Need custom gauge or sheet shearing?
Custom strand cuts, leveling, and perimeter framing ready upon specification.

Orientation & Bond Geometry
Short Way of Diamond (SWD) is measured center-to-center across diamond knuckles. The knuckle joints form continuous trusses for structural stiffness across wide unsupported spans.
Primary industrial applications
Specified across industrial plants, manufacturing facilities, architectural envelopes, and transport infrastructures.
Provides self-draining, high-traction footing for industrial plants, stairs, and overhead gantries.
Rigid one-piece diamond barrier that resists cutting, climbing, and perimeter breach.
Maintains clear optical visibility and airflow while shielding operators from moving mechanical parts.
Allows unrestricted cooling airflow and acoustic relief while blocking large debris and pests.
Submit your standard expanded metal project specifications
Mutual Metal supplies cut-to-size sheets, full factory bundles, and specialty alloy orders with prompt project pricing and technical data sheets.
Expanded metal specifications
Standard dimensional ranges, structural patterns, surface textures, and alloy options engineered for demanding industrial fabrication.
Controls open area ratio, total weight, and structural rigidity across sheets.
Diamond opening pitch designed for optimal sightline control and structural load.
Standard raised strands provide omnidirectional traction for wet and oily environments.
| Material | Typical grade | Application benefit |
|---|---|---|
| Carbon Steel | ASTM A1011 / A36 | Economical high-strength base metal suited for indoor framing and painting. |
| Hot-Dip Galvanized | ASTM A123 Coating | Heavy zinc barrier offering long-term corrosion resistance outdoors. |
| Stainless Steel | Type 304 / Type 316 | Maximum resistance to chemical washdowns, marine salt, and high heat. |
| Mill-Finish Aluminum | Alloy 3003-H14 / 5005 | Lightweight, non-magnetic, and naturally corrosion-resistant for architectural use. |
- Walkways & CatwalksSelf-draining, high-traction structural decking for plants and platforms.
- Perimeter FencingAnti-climb boundary panels with unobstructed security sightlines.
- Machinery GuardsProtective equipment barriers allowing clear ventilation and visual inspection.
- Architectural LouversSolar shading and airflow control panels with custom finished edges.
Need custom strand dimensions or special flattening?
We fabricate custom diamond sizes, light gauge foils, heavy grating profiles, and cut-to-length blanks to fit your project schedule.