Hole Creation - Quick Reference

A handy reference guide to cutting service holes in e-joist

Under no circumstances are the flanges to be cut or drilled. Holes for the installation of ducts, service pipes and electrical conduit may be cut through e-joist webs with the following limitations.

Scroll below for individual instructions and imagery.

  • 1. All holes to be considered before cutting
  • 2. Maximum of 3 holes
  • 3. Grouping of holes
  • 4. Don't cut the blue flange
  • 5. Distance from support
  • 6. Minimum hole spacing
  • 7. Position and neatness
  • 8. Cantilever holes
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