Press Locked Grating — Lightweight, Aesthetic & Precision

Press Locked Grating — Precision Interlocking Construction

Press locked grating (also called interlocking or mechanical lock grating) is the architect's choice within the steel grating family. Instead of resistance-welding cross bars onto bearing bars, the cross bars are hydraulically pressed into precision-punched slots, locking the two together mechanically. Because nothing is welded, the finished panel has no weld beads, spatter, or heat discoloration — just a clean, uniform grid.

Named standards are purchaser specification inputs, not a claim that every configuration is certified. State the required standard and edition, acceptance criteria, inspection points and documents; the quotation must confirm the applicable scope.

What is Press Locked Grating?

In press locked construction, the bearing bars — the load-carrying flats — are punched with slots at fixed intervals. Cross bars of matching section are then forced into those slots under high hydraulic pressure, deforming the metal at each intersection into a tight mechanical joint. The interlock is permanent and dimensionally precise: every opening in the panel is identical, and both faces of the grating sit flush.

This is what separates press locked grating from welded grating. Welded panels are the workhorse for heavy industrial loads, but each weld point leaves a visible bead. Press locked panels trade some heavy-load capacity for a cleaner appearance and consistent geometry, which is exactly what architectural and light-structural projects call for. For corrosive or non-conductive environments where steel is not ideal, see our FRP grating line as an alternative.

Specifications & Dimensions

Minimum order, production timing, packing, trade terms and destination logistics are confirmed only after the quantity, configuration, process scope and delivery requirements have been reviewed.

Common configurations pair 25×3 to 65×5 mm bearing bars with the 19-space (approx. 30 mm) or 15-space (approx. 25 mm) pitch series, but slot patterns can be punched to suit denser or more open grids. Panels are supplied banded, with cutouts, notches, and kick plates fabricated per drawing.

Ideal Applications for Press Locked Grating

Press locked grating is specified wherever the grating will be seen as well as walked on. Typical uses include building facades and sunshade screens, decorative mezzanines and viewing platforms, interior and exterior walkways with light to medium foot traffic, stair treads in commercial buildings, suspended ceilings, ventilation grilles, tree grates, and infill panels for fencing, balustrades, and safety railing.

Architects and EPC contractors choose it for airports, stadiums, retail developments, office buildings, and public infrastructure where exposed grating contributes to the design language. For heavy vehicular or plant-floor loading, a welded panel is usually the better fit — our team will recommend the right type for each area of your project. Browse more project types on our applications page.

Why Choose Press Locked Grating?

• Weld-free pressed joints — no spatter, burn marks, or weld beads
• Flush, uniform top surface suited to visible architectural work
• Bearing bars from 20×3 to 100×9 mm, made to project spec
• Required standards, editions, inspections and documents confirmed per quotation
• Required standards, editions, inspections and documents confirmed per quotation
• Every panel cut, banded, and notched to your drawings — no stock SKUs

Frequently Asked Questions