Raised Expanded Metal Mesh

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Introduction

Raised expanded metal mesh, also known as standard expanded metal, is produced from a single metal sheet that is slit and stretched in one continuous process to form a diamond-shaped mesh. Unlike flattened expanded metal, the strands remain angled relative to the original plane of the sheet, giving the mesh a three-dimensional, raised profile with noticeable thickness and texture.

The raised expanded metal mesh can be made of stainless steel sheet and plate, galvanized steel, aluminum, copper, brass and other alloy metals, among which, stainless steel expanded metal is the most economical and durable. Plain steel expanded mesh can be galvanized to improve its corrosion resistance.

Common opening types are diamond pattern, hexagon pattern, and other decorative pattern.

Standard Expanded Metal

Technical sketch

SWD - short way of diamond hole

LWD - long way of diamond hole

Bond - where two stands intersect

Strand width-length of the metal used to produce one strand

Sheet / strand thickness- gauge thickness

LWM( width )- mesh sheet size, the distance of LWD direction

SWM-( length) - mesh sheet size, the distance of SWD direction

LWO-long way of opening

SWO-short way of opening

Specifications

Expanded Metal (available in aluminum, stainless and galvanized.)

Size (inch)& style No.		Weight per 100sq.ft	Center to center		opening		strand		Overall thickness (inch)
			inches		inches		inches
			A	B	C	D
			width	length	width	length	width	thick
3/16	# 24	50	0.200	0.50	0.166	0.437	0.050	0.024	0.086
	# 22	62	0.200	0.50	0.166	0.437	0.050	0.030	0.088
	# 20	75	0.200	0.50	0.166	0.437	0.050	0.036	0.090
1/4	# 20	86	0.255	1.00	0.172	0.719	0.073	0.036	0.125
	# 18	114	0.255	1.00	0.172	0.719	0.073	0.048	0.125
1/2	# 20	43	0.500	1.20	0.438	0.938	0.072	0.036	0.124
	# 18	70	0.500	1.20	0.438	0.938	0.088	0.048	0.155
	# 16	86	0.500	1.20	0.375	0.938	0.086	0.060	0.157
	# 13	147	0.500	1.20	0.313	0.938	0.096	0.092	0.182
3/4	# 16	54	0.923	2.00	0.813	1.750	0.099	0.060	0.186
	# 13	80	0.923	2.00	0.750	1.688	0.096	0.092	0.195
	# 10	120	0.923	2.00	0.750	1.625	0.144	0.092	0.282
	# 9	180	0.923	2.00	0.688	1.563	0.148	0.134	0.300
1-1/2	# 18	20	1.330	3.00	1.313	2.625	0.067	0.048	0.140
	# 16	40	1.330	3.00	1.250	2.625	0.107	0.060	0.211
	# 13	60	1.330	3.00	1.188	2.500	0.104	0.092	0.215
	# 10	79	1.330	3.00	1.188	2.500	0.137	0.092	0.289
	# 9	120	1.330	3.00	1.125	2.375	0.142	0.134	0.295
	# 6	250	1.330	3.00	1.000	2.313	0.201	0.198	0.425

Raised Expanded Metal Mesh characteristics

Three-dimensional structure & slip resistance: The raised strands create a rough, textured surface that provides excellent anti-slip performance, ideal for walkways and ramps.

High strength-to-weight ratio: Formed from one piece of sheet without welding or weaving, the mesh offers uniform load distribution, structural integrity, and relatively light weight.

Permeability: Diamond openings allow free passage of air, light, liquids, and sound, combining ventilation, drainage, and visibility.

Waste-free processing: The slitting and stretching process generates no material waste, offering better material utilization and cost efficiency than perforated plate.

Ease of fabrication: Can be cut, bent (typically up to 90°), and welded for secondary forming.

Raised Expanded Metal Mesh application

Walkways & platforms: Industrial walkways, stair treads, ramps, scaffolding planks, trench covers — utilizing the raised surface for slip resistance.

Safety & protection: Machine guards, fencing, barriers, safety gates — combining blockage with visibility.

Architecture & decoration: Facade liners, ceilings, railing infill panels, sunshades — exploiting the 3D texture for light-and-shadow effects.

Industrial filtration & ventilation: HVAC systems, air/fluid filters, screening meshes, silencer grilles.

Others: Shelving, speaker grilles, EMI/RFI shielding, antenna reflectors, etc.