Bar Grating Overview
Bar grating is a load-bearing open-grid product constructed from parallel bearing bars connected by perpendicular cross bars.
Different construction methods, bearing bar sizes, spacing and surface styles allow bar grating to be selected for industrial platforms, walkways, stair treads and other access systems.
We supply carbon steel, galvanized steel, stainless steel and aluminum bar grating in standard panels or custom fabricated sizes according to project drawings.
Industry references similarly define welded, press-locked, swage-locked and riveted/related constructions by the way bearing bars and cross bars are joined.
Bar Grating Products
Choose the grating construction and finished product according to load, span, surface, spacing and installation requirements.
Welded Bar Grating
Bearing bars and cross bars are welded together to create rigid grating for industrial flooring, platforms and access systems.
Press-Locked Bar Grating
Bearing and cross bars are mechanically pressed together to create a clean, rigid grid for industrial and architectural applications.
Swage-Locked Bar Grating
Cross bars are mechanically locked into bearing bars to create lightweight and stable grating, commonly used with aluminum constructions.
Riveted Bar Grating
Bearing bars are mechanically connected through a riveted construction for demanding industrial and traffic applications.
Serrated Bar Grating
A serrated bearing-bar surface provides additional slip resistance for wet, oily or exposed walking surfaces.
Heavy-Duty Bar Grating
Heavy-duty grating uses larger bearing bars and suitable spacing for applications requiring increased load-carrying capability.
Close-Mesh & ADA Bar Grating
Close-mesh grating uses reduced bearing-bar spacing for smaller openings, with selected configurations suitable for accessibility-related requirements.
Bar Grating Stair Treads
Fabricated grating stair treads can include nosing, end plates and mounting details for industrial stair systems.
Bar Grating Clips & Fasteners
Clips and fasteners secure grating panels to supporting structures while allowing installation and removal where required.
Bar Grating Specifications
Bar grating is selected according to construction type, bearing bar size, spacing, span, surface and required load conditions.
| Specification | Available Options | Selection Notes |
|---|---|---|
| Construction Type | Welded, press-locked, swage-locked, riveted and selected special designs | Determines how bearing and cross bars are joined |
| Material | Carbon steel, galvanized steel, stainless steel, aluminum | Select according to strength, corrosion and weight |
| Bearing Bar Size | According to required depth and thickness | Major factor in load capacity |
| Bearing Bar Shape | Rectangular and other available profiles | Depends on construction and requirement |
| Bearing Bar Spacing | According to grating series | Influences load, open area and accessibility |
| Cross Bar Spacing | According to construction | Helps define the grating series |
| Surface | Smooth or serrated | Select according to walking and slip conditions |
| Panel Width & Length | Standard or custom | Confirm bearing-bar direction |
| Clear Span | According to support layout | Critical for load selection |
| Load Requirement | Pedestrian, equipment or other specified load | Must be considered together with span |
| Edge Condition | Open, banded or fabricated | Depends on installation |
| Finish | Mill, painted, galvanized or other specified finish | Depends on material and environment |
| Fabrication | Cutting, banding, notching, cut-outs and toe plates | According to drawings |
| Accessories | Clips, fasteners and mounting hardware | According to supporting structure |
Bearing bars carry the load in the span direction, while cross bars connect the bearing bars across the panel; clear span is the unsupported distance between supports.
Bar Grating Materials
Choose the material according to load requirements, corrosion exposure, weight and project environment.
Carbon Steel
Strong and economical bar grating for industrial platforms, flooring and general access systems.
Galvanized Steel
Hot-dip galvanized grating provides additional corrosion protection for outdoor and exposed environments.
Stainless Steel
Corrosion-resistant bar grating for processing, wet and demanding industrial environments.
Aluminum
Lightweight and corrosion-resistant grating for applications where reduced weight and environmental resistance are important.
Bar Grating Applications
Metal Grating Platforms & Walkways
Metal Grating Stair Treads
Trench & Drain Grating
Custom Bar Grating Fabrication
Bar grating panels can be cut and fabricated according to structural layouts, openings and installation requirements.
Cutting & Sizing
Panels can be cut to finished widths, lengths and installation dimensions.
Banding
Open panel edges can be banded where required for finished appearance, strength or installation.
Cut-Outs & Notching
Custom openings and notches can be produced around pipes, columns and structural components.
Toe Plates & Mounting
Toe plates, clips and other mounting details can be incorporated according to project drawings.
Cut-outs, banding, notching and toe boards are all standard types of project-specific requirements recognized in professional grating ordering guidance.
Bar Grating Sizes, Load & Span
Bar grating load capacity depends on the bearing bar size, spacing, construction and clear span between supports.
Industry designations such as 19-W-4 combine bearing-bar spacing, construction type and cross-bar spacing into a standard grating specification. Load tables should then be used to verify the selected bar size against the required span and loading condition.
Example: 19-W-4
19 — 19/16″ bearing bar spacing on center
W — Welded construction
4 — 4″ cross-bar spacing
How to Choose Bar Grating
Select bar grating according to the required load, clear span, walking surface and operating environment.
Construction Type
Choose welded, press-locked, swage-locked or another construction according to the project and material.
Bearing Bar Size
Bearing bar depth and thickness are important factors in grating strength and load capacity.
Bar Spacing
Spacing affects open area, walking surface, load characteristics and accessibility.
Smooth or Serrated
Choose a smooth surface for general use or serrated grating where additional slip resistance is required.
Load & Span
Determine the applied load and unsupported span before selecting the final grating specification.
Material & Finish
Choose material and finish according to corrosion exposure, weight and service environment.
Why Choose Us as Your Bar Grating Supplier?
We supply custom bar grating with project-based specification control, fabrication and material options for industrial access systems.
Specification Support
Bearing bar size, spacing, construction and finished dimensions can be reviewed against project requirements.
Custom Fabrication
Panels can be cut, banded, notched and prepared according to fabrication drawings.
Multiple Materials
Carbon steel, galvanized steel, stainless steel and aluminum options support different project environments.
Project Identification
Different panel sizes and specifications can be marked and packed according to installation locations.
For quotation, send us the grating type, material, bearing bar size, spacing, panel dimensions, span, load requirements, quantity and fabrication drawings.
Case Study : Galvanized Bar Grating Platforms for a Water Treatment Facility
This project required fabricated galvanized bar grating panels with multiple dimensions and equipment cut-outs for elevated maintenance platforms.
Project Requirement
A contractor required bar grating for maintenance platforms around pumps, pipes and treatment equipment.
The platform layout included different clear spans, panel dimensions and several openings around existing equipment.
Panels needed to be identifiable for installation according to the contractor’s layout drawings.
Manufacturing Solution
Galvanized steel bar grating was selected for the outdoor and moisture-exposed environment.
Grating specifications were prepared according to the approved platform drawings. Panels were cut to finished dimensions, with required openings and notches produced around equipment and structural members.
Open panel edges were banded where required, and different panels were marked according to their installation positions.
Inspection & Packaging
Panel dimensions, bearing-bar direction, cut-outs, banding and identification marks were checked before shipment.
Panels were grouped according to installation area and secured for transport to simplify onsite handling.
Bar Grating FAQs
Bar grating is a load-bearing open-grid product made from parallel bearing bars connected by perpendicular cross bars.
Common constructions include welded, press-locked, swage-locked and riveted grating, along with heavy-duty and close-mesh configurations.
19-W-4 identifies bearing-bar spacing, welded construction and cross-bar spacing. In this designation, 19 represents 19/16″ bearing-bar spacing and 4 represents 4″ cross-bar spacing.
Smooth grating has a conventional bearing-bar surface, while serrated grating adds notches to improve traction.
Load capacity depends on factors including bearing-bar size, spacing, construction and the clear span between supports.
Common materials include carbon steel, galvanized steel, stainless steel and aluminum.
Yes. Panels can be fabricated with cut-outs, notches, banding and other details according to drawings.
Provide grating construction, material, bearing-bar size and spacing, panel dimensions, span, load requirement, quantity, finish and fabrication drawings.
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