What Is Expanded Metal?

What Is Expanded Metal?

Expanded metal is a sheet of metal fabricated with an everyday sample of diamond-shaped openings. These openings reduce the load and cost of the sheet and provide ventilation, making it a flexible resolution for a lot of applications. The most common metals used for expanded metal sheet embody steel, stainless metal, and aluminum, though it can also be made from titanium and copper.

How is Expanded Metal Made?
expanded metalExpanded sheet is made from a single sheet of metal that has been slit by a row of knives mounted on an industrial die cutting machine. The knives move back and forth in a uniform pattern, slicing the sheet in alternating cuts, while the sheet moves by way of the machine.

Because the knives cut, they simultaneously push down on the newly reduce sections, stretching them apart into "ribbons." The ribbons stay attached on the uncut sections, which become the corners of open diamond shapes in an expanded mesh sheet. The size, form and positioning of the knives and the thickness of the metal sheet could be modified to create openings of various dimensions for a variety of applications.

Types of Expanded Metal

Expanded metal sheet comes in completely different profiles, including:

Customary Expanded Sheet: A finished product as it comes off the press after being lower and expanded. Typically referred to as raised expanded metal, due to the alternating ridges formed by overlapping metal strips.

Flattened Expanded Sheet: A regular expanded sheet that's then cold rolled, leaving a flat, smooth surface. Flattened expanded sheet is about 5% lighter than customary expanded sheet.

Expanded Metal Grating: A heavy duty expanded sheet manufactured from carbon steel sheet or plate. Expanded metal grating has no joints or welds, as every sheet is a single piece of sturdy steel. Best for catwalk and platform applications.

A Versatile Product
Expanded sheet metal is a flexible and economical product that's durable, straightforward to work with, and provides low wind resistance. It affords one-piece building that won’t unravel under regular circumstances, and can hold its form for a lot of years. The strands and bonds of the diamond-shaped trusses add energy and rigidity.

It is commonly used in a wide range of applications, equivalent to:

Machine guards

Catwalks, platforms and stair treads


Stair and balcony railing mesh

Window security




And much more