Floor Joist Panning

It also can be nailed on the bottom of floor joists to convert floor joist cavities to a duct run.

Floor joist panning.

Female end allows interlocking of multiple pieces for long runs. So far the only option i have found was to use hard pipe. I am looking for an alternative to replace joist panning that is easier to seal and better all around. This product is proudly made in the usa using galvanized steel construction for durability and rust prevention.

Joist panning can be installed between wall studs to enclose the stud cavity creating a duct run. Still commonly used is the panned floor joist. Master flow 16 in. However a have read in a few places that joist panning is difficult to seal and can pull air from unconditioned spaces.

Joist panning lining seems to still be popular. Used to seal the underside of the floor joist space to create a return air duct. One is the pan joist system a standardized beam and girder system of constant depth formed with prefabricated sheet metal forms. 16 in width is equal to the distance of joist spacing allowing the panning to be nailed or screwed directly into the wood.

Galvanized panning is used to seal the underside of a joist space. A two way version of pan joists called the waffle slab uses prefabricated hollow sheet metal domes to create a grid pattern of voids in a solid floor slab saving. This panning is constructed with sturdy 30 gauge galvanized steel.