Multiple Drilled Holes in Floor Joists

Was this a modular home by chance? I found the following on Google…

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International Residential Code (IRC R502.8 and R802.7) are:
*Don’t make any holes with a diameter greater than 1/3 the depth of a joist.’

  • No holes closer than 2 inches to the top or bottom edge.
  • No holes closer than 2 inches to any other hole or notch.
  • No notches in the middle 1/3 of the joist, but holes are permitted here.
  • No notches deeper than 1/6 the joist depth.
  • No end notches (where the joist is supported) greater than 1/4 the joist depth.
  • The length of a notch should not exceed 1/3 the joist depth.
  • Do not make square or rectangular cutouts. Also avoid square cuts in notches — angled cuts are better, as shown. Square cuts tend to start cracks.
  • No notches are allowed in the top of a large beam (greater than 4 in. thick), except at the ends.

Yes, this is a modular home. Commodore brand

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Ryan is a Google master!

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