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Aluminum Grating
Aluminum grating offers about one-third the weight of steel with inherent corrosion resistance — no coating required. It suits architectural facades, ceilings, marine walkways and light-to-medium duty platforms where weight, handling or appearance matters, in 6061, 6063 or 5052 alloys with swage-locked, dovetail or welded construction and mill, anodized or powder-coated finishes.
- About one-third the weight of comparable steel grating
- Naturally corrosion resistant — no coating required
- Swage-locked, dovetail or welded construction
- Mill, anodized or powder-coated finishes
What is aluminum grating?
Aluminum grating — also called aluminum bar grating — is made from aluminum alloy bearing and cross bars, commonly 6061, 6063 or 5052, joined by swage-locking, dovetail pressure-locking or welding. Its light weight simplifies handling and reduces the cost of supporting structures.
It performs best in light-to-medium duty: walkways, platforms, facades, ceilings, ventilation screens and marine access areas. For heavy vehicle loads such as forklifts and trucks, steel heavy-duty grating is normally the practical and economical choice.
Because the alloy forms its own protective oxide film, outdoor and marine use needs no coating; anodizing or powder coating is added for appearance, color or extra surface wear resistance.
Applications
Where Aluminum Grating Is Used
Walkway & Catwalk Grating
Safe, drained, ventilated walkways for photovoltaic arrays, pipe racks, tank farms and roof access routes.
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Corrosion Resistant Grating
Material and finish strategies for chemical plants, coastal sites, water treatment and washdown areas.
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Industrial Platform Grating
Open-grid flooring for chemical plants, equipment platforms and mezzanines — strength, drainage and ventilation in one panel.
View applicationSpecifications
Specification Options
| Item | Options | Notes |
|---|---|---|
| Alloys | 6061-T6 / 6063-T6 / 5052 | Supplied per project specification with mill certificates |
| Construction | Swage-locked / dovetail pressure-locked / welded | Swage-locked and dovetail give a clean flush appearance |
| Bearing bar | Common depths 25–50 mm for pedestrian duty | Sized to span and load like steel grating |
| Bearing bar spacing | 19-space / 15-space series and metric equivalents | Closer spacing for public access areas |
| Surface | Plain / serrated | Serrated for wet walkways and marine decks |
| Finish | Mill / clear or black anodized / powder coated | Anodizing adds hardness and wear resistance |
| Duty | Pedestrian and light-to-medium loads | Not for heavy vehicle traffic — evaluate steel instead |
| Fabrication | Cut to size, banded, framed to drawings | Light weight eases handling and installation |
Variants
Recommended Types
Swage-locked aluminum grating
Cross bars mechanically locked into bearing bars for a clean, flush appearance — the architectural favorite for facades, ceilings and screens.
Dovetail pressure-locked grating
Pressed dovetail joints give a flat, uniform look with good lateral stability for architectural and light industrial use.
Welded aluminum grating
Welded intersections for industrial walkways and platforms where utility leads and appearance is secondary.
Anodized architectural grating
Clear, matte or black anodizing adds surface hardness, wear resistance and color for visible architectural installations.
Alloy and finish selection
Match the alloy to the part and the fabrication route. 6061-T6 is the usual structural choice when bearing-bar strength leads the decision; 6063-T6 combines good extrudability with a consistent visible surface for architectural swage-locked or pressure-locked work. 5052 is more relevant to formed sheet and fabricated accessories where formability and marine-adjacent service matter. The ordered alloy and temper should be stated on the drawing and supported by the mill certificate.
Mill finish is suitable when the natural aluminum appearance is acceptable. Anodizing is selected for a controlled architectural surface and added wear resistance, but the final shade can vary with alloy, temper, surface preparation and production batch. Approve the finish sample, film requirement and viewing standard before the full run; parts that must match visually should be processed as a coordinated lot where practical.
Clear and black are the most straightforward anodized options. Powder coating offers a broader color choice, with the coating system and color reference agreed for the exposure. Neither finish changes the need to size the bearing bars for span and load; heavy vehicle duty should still be evaluated against a purpose-designed steel grating solution.
- 6061-T6: prioritize structural bearing bars and load-led walkway designs
- 6063-T6: prioritize extruded profiles and consistent architectural appearance
- 5052: consider for formed components and accessories rather than assuming one alloy fits every part
- Anodized work: approve alloy, surface preparation, film requirement and color sample together
- Powder-coated work: define the color reference and exposure before production
Fabrication & QC
Fabrication & Quality Notes
- Swage-locked and dovetail panels are pressed on dedicated tooling for consistent, flush joints.
- Aluminum panels are cut, banded and framed to drawings with the same detailing process as steel.
- Panels are handled and stored separately from carbon steel to avoid surface contamination and marking.
- Each panel is checked for dimensions, spacing, joint integrity and surface finish before packing.
Packaging
Packaging & Delivery
- Protective film or interleaving between panels to prevent scratching of mill and anodized surfaces.
- Lightweight bundles and crates sized for manual handling; rigid packing for architectural finishes.
- Panels numbered and packed to installation sequence for facade and walkway projects.
Gallery
Aluminum Grating in Detail
FAQ
Aluminum Grating FAQs
Can aluminum grating be used for vehicle traffic?
Does aluminum grating need a finish?
What constructions are available?
How much lighter is aluminum than steel grating?
Is aluminum grating suitable for marine environments?
What MOQ and lead time apply to custom aluminum grating?
Can aluminum grating be anodized in colors?
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