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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