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Community and Q&A

How to inexpensively lower ceiling for cellulose depth?

Griffin728 | Posted in Green Building Techniques on

Hey guys, I’ve decided to blow in cellulose into my new garage under the attic (storage truss) floor. Problem is the lower cord of the truss is only a 2×6, so I looking for the best way to lower the ceiling in order to get about 16″ of depth. Nothing is built yet except the trusses. The alternative would be to raise the attic floor, but this woukd reduce fuctionality, and there would still be thin spots under the eaves.

So, is there an easy (cheap, light, pre-made) way to drop the ceiling about 10 inches? In hindsight I should have had the trusses built with a heel, but at that time I was thinking about insulating under the roof deck instead.


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  1. GBA Editor
    Martin Holladay | | #1

    I think you could use long 2x4s, attached to the bottom chord of the trusses by plywood gussets (each about 4 inches by 16 inches) secured with construction adhesive and screws. I would probably support the 2x4s every 6 feet or so.

  2. Expert Member

    Here is a link to a house Dan Kolbert built that uses the technique Martin suggests:

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