YueChu Metal · Expanded Metal
Expanded Metal Grating Manufacturer in China
Expanded metal grating is a raised, one-piece open metal panel designed for traction, drainage and ventilation. We manufacture custom expanded steel grating and walkway panels for contractors, fabricators, distributors and equipment builders.
- Steel, stainless steel & aluminum
- Custom patterns, panels & edges
- Walkways, platforms & stair treads
- Export packing for project orders
Custom product supply
Custom Expanded Metal Walkway Grating
Heavy-duty open flooring for industrial platforms, stairs and access systems
YueChu Metal manufactures custom expanded metal grating for industrial walkways, platforms, catwalks, stair treads, ramps and access systems supplied to B2B buyers in the United States, Europe and Australia.
Send the material, grating pattern, panel size, bearing direction, clear span, support spacing, load requirement, finish, quantity and destination for specification review and a factory quotation.
Project drawings are recommended. Final pattern and panel selection must consider material, load type, clear span, support spacing, bearing direction, deflection criteria, finish and fastening method.
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 material, grating pattern, SWD, LWD, strand dimensions, overall thickness, panel width and length, bearing direction, clear span, support spacing, design load, deflection limit and finish.
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.
| Style / pattern | Profile | Base thickness t (mm) | Strand width w (mm) | LWD (mm) | SWD (mm) |
|---|---|---|---|---|---|
| 1/2" #16 F | Flattened | 1.22 | 2.49 | 32.00 | 12.70 |
| 3/16" .032 R | Raised | 0.81 | 0.89 | 12.70 | 5.97 |
| 1/2" #20 R | Raised | 0.91 | 1.83 | 30.48 | 12.70 |
| 1/2" #18 F | Flattened | 1.04 | 2.11 | 32.00 | 12.19 |
| 1/4" #18 R | Raised | 1.22 | 2.18 | 25.40 | 6.35 |
| 3/4" #16 F | Flattened | 1.22 | 2.82 | 53.34 | 23.44 |
| 3/4" .081 Light F | Flattened | 1.52 | 3.02 | 53.34 | 23.44 |
| 3/4" #13 F | Flattened | 1.83 | 2.69 | 53.34 | 23.44 |
| 1-1/2" #13 F | Flattened | 1.93 | 2.90 | 81.28 | 33.78 |
| 1/2" .081 R | Raised | 2.03 | 2.21 | 30.48 | 12.70 |
| 3/4" .081 Light R | Raised | 2.03 | 2.90 | 50.80 | 23.44 |
| 3/4" #13 R | Raised | 2.29 | 2.44 | 50.80 | 23.44 |
| 3/4" #13 R (SS) | Raised | 2.29 | 2.67 | 50.80 | 23.44 |
| 1-1/2" .125 F | Flattened | 2.39 | 4.34 | 80.01 | 33.78 |
| 2" #9 R | Raised | 3.40 | 3.78 | 101.60 | 46.89 |
| 3/4" #9 R | Raised | 3.40 | 3.81 | 50.80 | 23.44 |
| N6664F | Flattened | 0.70 | 1.50 | 6.15 | 3.69 |
| Pattern 1294 | Raised | 1.60 | 2.36 | 30.48 | 11.72 |
| 2490F | Flattened heavy mesh | 3.50 | 6.00 | 46.99 | 15.49 |
| 2089A | Raised | 3.00 | 3.12 | 50.80 | 22.58 |
| Raute 50 × 22 × 4 | Diamond mesh | 2.00 | 4.00 | 50.00 | 22.00 |
| Raute 45 × 20 × 5 | Diamond mesh | 1.00 | 5.00 | 45.00 | 20.00 |
| Raute 200 × 55 × 6 | Diamond mesh | 3.00 | 6.00 | 200.00 | 55.00 |
| Raute 62 × 23 × 3 | Diamond mesh | 1.00 | 3.00 | 62.00 | 23.00 |
| Small mesh 6 × 3 | Diamond mesh | ≈ 0.50 | ≈ 0.80 | 6.00 | 3.00 |
| Rhomboidal 20 × 10 | Diamond mesh | 1.00 | 2.00 | 20.00 | 10.00 |
| Rhomboidal 30 × 17 | Diamond mesh | 1.50 | 2.50 | 30.00 | 17.00 |
| Rhomboidal 43 × 13 | Raised / flattened | 1.50 | 2.50 | 43.00 | 13.00 |
| 1212 reference pattern | Raised / flattened | 1.20 | 2.20 | 30.00 | 12.00 |
| 0910A reference pattern | Aluminum mesh | 1.00 | 1.50 | 28.00 | 9.00 |
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 quotationProduct overview
What Is Expanded Metal Grating?
Expanded metal grating is made by slitting and stretching metal plate into a raised diamond pattern. The strands and bonds remain part of one sheet, creating an open walking surface without welded cross bars. The raised profile supports traction, drainage, ventilation and debris passage.
It is used where project buyers need an economical alternative to solid plate or other open-flooring systems. Product suitability must be confirmed against the required load, span, support layout, fastening method, corrosion exposure and applicable project standards.
- Raised surface for industrial walkway traction and drainage.
- One-piece construction with no welded bearing-bar intersections.
- Custom panel size, pattern, material, finish and edge treatment.
- Suitable for framed panels, clips, supports and fabricated assemblies.
Expanded Metal Grating Applications
Typical applications include factory walkways and flooring, service platforms, catwalks, stair treads, maintenance access, mezzanine flooring, trailer and loading ramps, conveyor access, drainage areas and equipment platforms.
Expanded Metal Grating vs. Bar Grating
Expanded metal grating is formed from a single plate with raised diamond openings. Bar grating uses bearing bars and cross bars. Selection depends on load, span, open area, traction, weight, drainage, fabrication and the governing project specification.
Expanded Metal Grating Sizes and Load Review
Search terms such as 3#, 4#, 3.14 and 4.27 may refer to market-specific grating patterns or weight designations. Always provide the complete reference standard, material, panel size, span and load criteria so the requested product can be verified.
Material & Application Notes
Expanded Metal Grating Load Table
A generic load table should not be used without confirming the exact pattern and support conditions. Load capacity and deflection depend on material, strand geometry, overall thickness, bearing direction, clear span, panel width, support spacing and load type. Send these inputs for project-specific review.
Material and Finish Selection
Carbon steel is commonly selected for economical indoor or coated applications. Galvanized steel supports outdoor corrosion protection. Stainless steel is used for demanding hygiene or corrosion conditions, while aluminum reduces panel weight. Final selection should follow the project environment and engineering requirements.
Specification & ordering
Load, Span & Fixing Review
For load-bearing grating, confirm the project load, clear span, support spacing, bearing direction, fastening method and applicable safety requirements.
- Send project drawings, support layouts and the required reference standard.
- Confirm uniform or concentrated load and acceptable deflection.
- Identify the bearing direction and how panels will be supported and fastened.
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.
See the real manufacturing process
Production equipment, workshop areas and incoming material stock.
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.
Dimension inspection for your specification
Measuring tools and dimensional checks for expanded metal products.
Packing and loading support
Protected bundles, export packing and shipment preparation.
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
Expanded Metal Grating FAQ
What is expanded metal grating?
Expanded metal grating is heavy-duty raised expanded metal used as open flooring for industrial walkways, platforms, catwalks, stair treads and access areas. It is formed from one piece of plate with no welded cross bars.
What materials are available for expanded metal grating?
Common materials include carbon steel, galvanized steel, stainless steel and aluminum. Selection depends on load, corrosion exposure, panel weight, fabrication, maintenance and project standards.
Can you provide an expanded metal grating load table?
Load and deflection depend on the exact pattern, material, strand dimensions, overall thickness, bearing direction, clear span, panel width, support spacing and load type. Send the project conditions for review rather than relying on an unrelated generic table.
What is the difference between expanded metal grating and bar grating?
Expanded metal grating is stretched from one plate into raised diamond openings. Bar grating is assembled from bearing bars and cross bars. The correct choice depends on load, span, traction, drainage, open area, weight and project specifications.
Is galvanized expanded metal grating suitable for outdoor walkways?
Galvanized steel is commonly selected for outdoor corrosion protection. Final suitability depends on the exposure environment, coating specification, drainage, fabrication damage, maintenance and required service life.
What information is needed for pricing?
Send the material, pattern or reference designation, panel dimensions, bearing direction, clear span, support spacing, load and deflection requirements, finish, quantity, fastening method, application and destination port.
How do you pack expanded metal grating for export?
Packing options include waterproof protection, separators, strapping, pallets, steel frames, wooden cases and project labels. The plan is selected according to panel dimensions, coating protection, shipment method and destination.
Drawings & specifications welcome
Request a Quote for Expanded Metal Grating
Tell us the material, grating pattern, panel size, bearing direction, span, support spacing, load, finish, quantity and destination. We will review the specification for production and export packing.
Before sending a sample or drawing, use the expanded metal measurement guide to distinguish diamond pitch, clear opening and metal thickness.
- Material
- Carbon steel, galvanized steel, stainless steel and aluminum according to project requirements
- Profile
- Heavy-duty raised expanded metal grating
- Surface Options
- Mill finish, painted, powder coated, pre-galvanized or hot-dip galvanized after expansion
Made to your specification · Request a quotation
Technical DataProduct parameters & construction details
- Material
- Carbon steel, galvanized steel, stainless steel and aluminum according to project requirements
- Profile
- Heavy-duty raised expanded metal grating
- Surface Options
- Mill finish, painted, powder coated, pre-galvanized or hot-dip galvanized after expansion