YueChu Metal · Expanded Metal

Powder Coated Expanded Metal Mesh Manufacturer

Powder coating gives expanded metal a durable, uniform and color-controlled finish while preserving ventilation, visibility and the visual depth of the open mesh pattern.

  • Steel, stainless steel & aluminum
  • Black, white, grey & custom RAL colors
  • Raised, flattened & custom sizes
  • Protective packing for finished panels
Overlapping green, yellow and purple powder coated expanded metal sheets with diamond openings

Custom product supply

Custom Color Coated Expanded Metal Sheets & Panels

RAL color finishes for architectural, industrial and OEM projects

YueChu Metal supplies custom powder coated expanded metal mesh, sheets and fabricated panels for distributors, contractors, architects, fabricators and OEM buyers in the United States, Europe and Australia.

Specify the base metal, raised or flattened profile, mesh opening, sheet or panel size, RAL color, gloss, coating environment, quantity and destination for a production review and export quotation.

We review the complete system—not color alone—including base metal, pretreatment, mesh geometry, fabrication, edge condition, coating specification and packing protection.

Expanded Metal Specifications & Dimensions

Compare reference patterns used in the USA, UK, Germany, France and Australia. Confirm material, finished dimensions and availability for your order.

For an accurate quotation, specify the mesh before the finish: SWD, LWD, strand width, material thickness, profile and sheet or panel dimensions. Then add the coating requirements.

YueChu Metal expanded metal mesh specification diagram showing sheet width B, sheet length L, strand width b, thickness d, short way TL and long way TB
Expanded metal sheet and enlarged opening with dimension labels.View Full-Size Diagram (opens in a new tab)

Pitch ≠ clear opening. Diagram labels: TL = short way, TB = long way, b = strand width, d = metal thickness, B = sheet width and L = sheet length. Specify whether the short and long dimensions on your drawing are bond-center pitches (SWD / LWD) or clear openings (SWO / LWO).

LWD × SWD
Long × short way of the diamond pitch, measured between corresponding bond centers.
Strand width & thickness
Strand width is w; base metal thickness is t. Raised overall thickness T is a separate dimension.
SWO / LWO
The short and long dimensions of the clear opening between strands; these are smaller than the corresponding diamond pitches.
Open area & sheet size
Open area is the percentage occupied by openings. Sheet size is the overall width and length; specify diamond orientation separately.

All dimensions are in mm. LWD and SWD are the long and short diamond pitches, measured between corresponding bond centers. ≈ indicates an approximate value. Scroll horizontally to compare all fields.

Expanded metal specifications — dimensions in mm
Style / patternProfileBase thickness
t (mm)
Strand width
w (mm)
LWD
(mm)
SWD
(mm)
1/2" #16 FFlattened1.222.4932.0012.70
3/16" .032 RRaised0.810.8912.705.97
1/2" #20 RRaised0.911.8330.4812.70
1/2" #18 FFlattened1.042.1132.0012.19
1/4" #18 RRaised1.222.1825.406.35
3/4" #16 FFlattened1.222.8253.3423.44
3/4" .081 Light FFlattened1.523.0253.3423.44
3/4" #13 FFlattened1.832.6953.3423.44
1-1/2" #13 FFlattened1.932.9081.2833.78
1/2" .081 RRaised2.032.2130.4812.70
3/4" .081 Light RRaised2.032.9050.8023.44
3/4" #13 RRaised2.292.4450.8023.44
3/4" #13 R (SS)Raised2.292.6750.8023.44
1-1/2" .125 FFlattened2.394.3480.0133.78
2" #9 RRaised3.403.78101.6046.89
3/4" #9 RRaised3.403.8150.8023.44
N6664FFlattened0.701.506.153.69
Pattern 1294Raised1.602.3630.4811.72
2490FFlattened heavy mesh3.506.0046.9915.49
2089ARaised3.003.1250.8022.58
Raute 50 × 22 × 4Diamond mesh2.004.0050.0022.00
Raute 45 × 20 × 5Diamond mesh1.005.0045.0020.00
Raute 200 × 55 × 6Diamond mesh3.006.00200.0055.00
Raute 62 × 23 × 3Diamond mesh1.003.0062.0023.00
Small mesh 6 × 3Diamond mesh≈ 0.50≈ 0.806.003.00
Rhomboidal 20 × 10Diamond mesh1.002.0020.0010.00
Rhomboidal 30 × 17Diamond mesh1.502.5030.0017.00
Rhomboidal 43 × 13Raised / flattened1.502.5043.0013.00
1212 reference patternRaised / flattened1.202.2030.0012.00
0910A reference patternAluminum mesh1.001.5028.009.00

Market style numbers are pattern designations, not a complete thickness or load specification. For grating, verify material, strand geometry, support spacing and design loads.

Send a pattern or drawing for quotation

Product overview

What Is Powder Coated Expanded Metal?

Powder coated expanded metal is raised or flattened expanded metal finished with an electrostatically applied dry powder and cured to form a continuous protective color layer. It is also searched as coated expanded metal, color coated expanded metal, black expanded metal mesh or painted expanded metal mesh.

The finish is widely specified where buyers need both the functional open area of expanded metal and a controlled architectural or industrial appearance. Coating performance depends on the complete specification, especially base metal, pretreatment, powder chemistry, film build, curing and service environment.

  • Uniform color coverage for visible mesh, sheets and fabricated panels.
  • Custom RAL colors and gloss levels for coordinated project finishes.
  • Open structure supports ventilation, daylight, drainage and visibility.
  • Suitable for cutting, framing and project-specific panel fabrication.

Architectural Expanded Metal

Powder coated aluminum or steel expanded metal is used for facades, rainscreens, ceilings, wall panels, partitions, balustrade infill, sunshades and decorative screens where color consistency and mesh geometry are part of the design.

Industrial Coated Expanded Metal

Black or custom color coated expanded metal can be supplied for machine guards, equipment enclosures, storage fixtures, security panels, fencing and OEM components that require a clean, identifiable finish.

Custom RAL Color Mesh

Provide the required RAL reference, gloss level, indoor or outdoor exposure, sample approval process and visible surface expectations. Color approval should be completed before bulk production.

Specification & ordering

Color & Coating Approval

Confirm whether cutting, framing, bending or welding will be completed before coating.

  • Define which surfaces and edges are visually critical.
  • Provide the exact RAL color, gloss and texture requirement.
  • State indoor, outdoor, coastal or industrial exposure conditions.

Expanded Metal Manufacturing & Customization

A slit-and-stretched sheet, configured around your project.

Slitting and stretching turn solid sheet into connected mesh. Raised mesh retains angled strands; rolling creates a smoother, flattened profile. Cutting, forming and finishing follow your agreed specification.

Custom options to discuss

  • Material and grade
  • SWD / LWD and clear openings
  • Strand width and thickness
  • Raised or flattened profile
  • Sheet size and diamond direction
  • Coating, cutting and fabrication

See the real manufacturing process

Production equipment, workshop areas and incoming material stock.

Expanded metal production line with machines, aluminum rolls and packed materials
Factory workshopEquipment, rolls and packed materials in the workshop.
Expanded metal press line and steel sheet processing equipment
Production equipmentSheet processing and forming equipment.
YueChu Metal factory workshop with expanded metal production machines and finished rolls
Workshop environmentProduction equipment and finished stock.
Metal coils and sheet stock stored in the raw material area
Raw material stockCoils and sheet materials prepared for production.
Expanded metal forming machine feeding sheet through the production line
Forming processSheet passes through the expanded metal machine.
Close view of expanded metal mesh leaving the production machine
Production detailExpanded metal mesh at the machine exit.

Quality Control & B2B Supply Support

Agree on material, dimensions, tolerances and inspection requirements before production.

Approved drawings or samples help keep repeat orders consistent. Include inspection records, material documents and packing or identification requirements in your inquiry.

Key inspection considerations

  • Base material and grade
  • Diamond pitch and clear openings
  • Strand width and metal thickness
  • Sheet dimensions and flatness
  • Surface finish and visible defects
  • Packaging and product identification

Dimension inspection for your specification

Measuring tools and dimensional checks for expanded metal products.

Digital caliper checking expanded metal strand thickness
Thickness checkDigital caliper measurement of strand profile.
Digital caliper checking expanded metal mesh opening dimensions
Dimension checkMesh opening measurement.
Expanded metal mesh quality inspection with a measuring instrument
Opening checkInspection of the expanded opening.
Expanded metal profile and strand shape checked during quality inspection
Profile checkVisual and dimensional profile review.

Packing and loading support

Protected bundles, export packing and shipment preparation.

Stacked expanded metal sheets with protective plastic film prepared for packaging
Sheet packagingProtected expanded metal sheets.
Metal sheet bundles wrapped and secured for transport
Wrapped bundlesSheet bundles secured for handling.
Expanded metal bundles protected with wood frames and straps
Wood-frame packingLong bundles supported by frames.
Expanded metal bundles loaded inside a shipping container
Container loadingBundles arranged for ocean shipment.
Wooden cases and wrapped expanded metal rolls loaded in a container
Loading detailCases and rolls secured in the container.
Wrapped expanded metal rolls loaded on a delivery truck
DispatchFinished goods prepared for delivery.

Available Supply Forms

Sheets

Standard or custom sheet sizes.

Panels

Cut panels, with framing by agreement.

Coils

Roll supply for suitable mesh patterns.

Cut-to-Size Parts

Shapes and dimensions to your drawing.

Confirm dimensions, packing, MOQ and delivery requirements for your specification. View Inspection Photos ·View Packing & Shipment Photos

Buyer questions

Powder Coated Expanded Metal FAQ

What is powder coated expanded metal?

It is expanded metal sheet or mesh finished with electrostatically applied dry powder and cured to form a continuous colored layer. The finish provides a controlled appearance and helps protect the metal surface.

Which expanded metal materials can be powder coated?

Carbon steel, galvanized steel, stainless steel and aluminum can be reviewed. Pretreatment and coating selection must match the base metal and service environment.

Can you supply black expanded metal mesh and custom RAL colors?

Yes. Black, white, grey and custom RAL references can be reviewed. Please provide the exact color code, gloss level, texture and sample approval requirements.

Is powder coated expanded metal suitable for outdoor projects?

It can be suitable when the base metal, pretreatment, powder chemistry, film build and edge protection are specified for the exposure. Coastal and aggressive industrial environments need additional review.

Should panels be fabricated before or after powder coating?

Cutting, welding, framing and bending are generally reviewed before coating so the finished surfaces receive continuous treatment. The sequence depends on the panel design, tolerances and installation method.

What information is required for pricing?

Send the base metal, raised or flattened profile, thickness, SWD, LWD, strand width, sheet or panel size, RAL color, gloss, coating requirement, quantity, application and destination.

How do you protect coated panels during export?

Options include surface separation, suitable protective film, waterproof wrapping, corner protection, strapping, pallets, wooden cases and custom labels according to panel dimensions and finish sensitivity.

Drawings & specifications welcome

Request a Quote for Powder Coated Expanded Metal Mesh

Tell us the base material, mesh geometry, panel size, RAL color, gloss, exposure, fabrication, quantity and destination. We will review production and export packing requirements.

Before sending a sample or drawing, use the expanded metal measurement guide to distinguish diamond pitch, clear opening and metal thickness.

Base Materials
Carbon steel, galvanized steel, stainless steel and aluminum according to drawing and service environment
Profile
Raised expanded metal or flattened expanded metal
Opening Pattern
Diamond, hexagonal or project-specific expanded opening subject to tooling review

Made to your specification · Request a quotation

Technical DataProduct parameters & construction details
Base Materials
Carbon steel, galvanized steel, stainless steel and aluminum according to drawing and service environment
Profile
Raised expanded metal or flattened expanded metal
Opening Pattern
Diamond, hexagonal or project-specific expanded opening subject to tooling review