holes for basement wiring

Old 04-01-03, 04:51 PM
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Location: Minnesota
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holes for basement wiring

Is it ok to drill 7/8" hole through the bottom of engineered floor trusses (open floor joists) made of 2x4's. I need to run some wiring and I'm wanting to make sure I don't degrade the strength.
Old 04-01-03, 07:36 PM
bungalow jeff
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No, you may not modify any type of truss and never cut holes in flange members.

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