Can Ductwork Be Made of Wood

Building materials, such as wood products, do not meet the flame- and smoke-spread criteria as do approved duct materials. Using cavities as return or supply ducts is not a fire hazard in itself, but it will encourage a fire to spread throughout the building.

What material is ductwork made of?

Traditionally, air ductwork is made of sheet metal which was installed first and then lagged with insulation. Today, a sheet metal fabrication shop would commonly fabricate the galvanized steel duct and insulate with duct wrap prior to installation.

Can you DIY ductwork?

To answer the question of whether or not you can replace or install your own ductwork, I’d say it is possible but that I highly recommend enlisting the help of a heating, cooling, and ductwork expert. Ductwork runs all throughout your house, which makes doing DIY repairs yourself a heavy contracting lift.