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Welded vs Press-Locked Steel Grating

Both are steel bar gratings with the same open grid, but the way the cross bars join the bearing bars changes strength, surface and best-use. Welded fuses by heat and pressure; press-locked swages mechanically with no weld.

Side-by-side of welded and press-locked steel grating joints

What is the difference?

Welded and press-locked grating look similar from above but are made differently. Welded grating resistance-welds the cross bars to the bearing bars. Press-locked grating presses the cross bars into slots in the bearing bars so the metal deforms and locks—with no weld.

Welded vs press-locked at a glance

FeatureWeldedPress-locked
JointFused by resistance welding under pressureMechanically swaged, no weld
SurfaceTwisted cross bars give natural gripSmooth, clean top
StrengthHigher; joint is part of parent materialLower; relies on mechanical interference
Best forHeavy loads, long spans, industrial trafficArchitectural and light-to-medium loads
Not ideal forPurely decorative fine screensHeavy vehicle or forklift loads

When to choose welded

  • Heavy-duty platforms, mezzanines and walkways
  • Vehicle, forklift or equipment traffic
  • Long spans where joint strength matters
  • General industrial flooring

When to choose press-locked

  • Architectural facades, screens and sunscreens
  • Clean indoor areas with light-to-medium loads
  • Decorative or visible grids
  • Where a smooth, uniform top is preferred

Welded vs Press-Locked FAQ

Which is stronger?

Welded, because the joint is fused into the parent material rather than held mechanically.

Can both be galvanized?

Yes. Both are hot-dip galvanized after fabrication.

Is press-locked cheaper?

Not necessarily; the choice should follow load and appearance, not price alone.