I am finishing my basement and need to frame a soffit to cover supply and return hvac ducting, and a steel I beam. the width of the soffit is 6 feet and the 2 ducts are butted tight together so I am trying to figure out a way to support the bottom cross beams to keep them from sagging. There are 2 3" pvc pipes running between the ducting and the I beam for the furnace. Any ideas?
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How to support a 6 foot wide soffitPage Title Module
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