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Building Homes or Extensions/mounting storage on garage ceiling


SoCalAngler wrote at 2016-05-08 19:05:26

Once the wood joists are located, brackets can then be installed with lag screws.  

Question:  If high hats are 7/8" and drywall is 5/8" this equals 1-1/2" thickness before hitting drywall.  Will a 3" screw be enough grip seeing as only 1-1/2" will enter wood?

Also, at points where there is no high hat but joist is 7/8" above drywall, what happens when screw is tightened?  Won't drywall be crushed?


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Bruce E. Johnson


I can answer any construction related question in regards to carpentry, concrete, drywall, masonry, structural elements of any type of building, residential or commercial. Interior or exterior.


Custom Commercial and residential buildings. Churches, theaters, schools and auditoriums. Most recently I am working with the Catholic Church on several design build committees. I have a website related to scheduling and project supervision. Although my expertise is more related to multimillion dollar commercial, educational and theatrical projects my generous credentials in residential and remodelling construction make me a viable source of information regarding all forms of building questions.

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