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Plain vs Serrated Steel Grating

The only difference between plain and serrated steel grating is the top edge of the bearing bars. Plain is flat; serrated has teeth cut into the top to break up slip. Choose by slip risk, not by appearance.

Serrated steel grating surface showing teeth cut into the bearing bars

What is the difference?

Plain and serrated grating share the same bars, pitches and load capacity. The only change is the profile of the bearing-bar top: plain is flat, serrated has a series of teeth. Those teeth interrupt the contact plane underfoot, which is what improves grip.

Plain vs serrated at a glance

FeaturePlainSerrated
Top surfaceFlat and smoothTeeth cut into the bar top
GripLowerHigher
CleaningEasier to sweep and washTeeth can trap finer debris
Load capacitySame for given bar sizeSame for given bar size
UseDry, clean, levelWet, oily, sloped, outdoor

When to use plain

  • Dry indoor floors, mezzanines and walkways
  • Areas free of oil, water and contamination
  • Where trolleys or rollers pass and easy cleaning matters
  • Architectural or decorative grids

When to use serrated

  • Outdoor or washdown areas that are often wet
  • Floors with oil, grease or other contaminants
  • Sloped walkways and ramps
  • Any area where slip resistance is a priority

Performance trade-offs

  • Serrated bars are slightly heavier and use a little more material per bar.
  • The teeth can trap finer debris, so cleaning takes more attention.
  • Teeth wear first under heavy abrasion; the flat portion still carries load.
  • Neither profile changes the structural capacity for a given bar size.

Plain vs Serrated FAQ

Does serrated grating carry more load?

No. Capacity depends on bar size and pitch, not on the surface profile.

Can I add slip resistance to plain grating later?

No. Slip resistance comes from the bar profile, so specify serrated at order time.

Which is easier to clean?

Plain, because the flat surface sweeps and washes more readily.