Product specificationMutual Metal line

Expanded metal

Rigid diamond-mesh panels slit and stretched from solid sheet.

Unbroken diamond-strand matrices manufactured without welds or joints, delivering high strength-to-weight ratios for perimeter security and industrial enclosures.

Expanded metal diamond mesh panel pattern detail

Fabrication structure

Continuous un-welded steel strand

Zero joint failure
Available patterns
Geometric mesh profiles

Standard raised diamond

Rigid three-dimensional diamond pattern with natural anti-slip grip.

Flattened smooth mesh

Cold-rolled through finishing rolls for a flush, planar sheet surface.

Micro-mesh

Fine-aperture shielding for delicate filtration and acoustic baffling.

Heavy architectural grating

High-capacity load-bearing profile for industrial catwalks and flooring.

Raw materials
Alloy and finish options

Carbon steel

Standard mill or oiled finish for fabrication

Hot-dip galvanized

ASTM A123 heavy zinc coating for outdoor exposure

Stainless steel 304 & 316

Corrosion-resistant grades for chemical and marine settings

Mill-finish aluminum

5005-H34 & 3003-H14 lightweight alloys

Primary uses
Engineered installations
Safety and machine enclosures
Pedestrian walkways and stair treads
Security partitions and perimeter fencing
Ventilation louvers and intake screening
Industrial catwalks and heavy flooring
Dimensional specs
Manufacturing tolerances

Strand widths

0.031-in to 0.500-in

Short way of diamond (SWD)

0.25-in to 3.00-in

Long way of diamond (LWD)

0.50-in to 8.00-in

Sheet thickness range

24 ga through 1/4-in plate

Need custom sheet dimensions or pre-cut panels?

We slit, level, and sheer expanded mesh to exact project drawings with mill certificates and quality inspection.

Custom Engineering & Sizing

Customize your expanded metal specifications?

Send us your strand widths, sheet gauges, opening dimensions, and alloy requirements. Our engineering team prepares detailed quotes based on your exact fabrication drawings.

Custom opening sizes

Standard or flattened diamond patterns cut to your exact LWD and SWD needs.

Diverse alloy options

Carbon steel, aluminum, 304/316 stainless, and pre-galvanized sheet stock.

Precision fabrication

Tight shearing, custom edge framing, and specialized coatings ready for installation.