Lateral Instability

Lateral instability is when the floor system becomes loose and unstable. There are gaps between panels. Panels shift laterally when weight is applied.

  • Missing edge trim
  • Lateral braces loose or untied
  • User abuse
  • Incorrect cutouts
  • Leaving panels out
  • Poor installation
  • Drastic temperature changes
  • Multi-phased installations


  • Structural damage to other floor components
  • Equipment subject to shifting
  • Personnel hazard
  • Allows debris to drop on stringers causing vertical instability
  • Reduction in plenum pressure from air conditioning
  • Allows water/chemicals used in cleaning to corrode understructure
  • Safety hazard