Detached Garage Ceiling - Plywood Install

[pbywallace]

Perhaps a stupid question but this is my first garage project.

Want to put in a plywood ceiling - we have 24 OC joists. For the **** joints, do I need to have the ends of each fall in the center of the joist? We have 2x6 joists.

In other words - I need to cut each 4x8 so that they end at the middle of the joists, right?

This is just a detached, unheated garage so we don't need anything fancy but curious if folks would suggest instead using drywall and just caulking the seams? Don't want to have to mud/tape this stuff.

thanks

 

[spudley]

If your joists are spaced accurately on 24" ctrs, you shouldn't have to cut much. You'll likely need to cut the pieces that reach the walls, as 24" centered joists are normally measured from the outside of the wall, meaning the first joist from the wall will be 24" minus 3 1/2" or 5 1/2" depending on width of wall studs.

You may want to start applying full sheets of ply in the field and finish at the walls with cut to fit ply.

I'd use drywall, it's cheaper and really not that hard to finish but its all personal preference.

 

[nadogail]

Sister the joists with a nailer.

 

[rburke65]

In#tall metal ceiling liner.....no problems!

 

[The Cobbler]

measure how close the trusses are to 24" C-C if close you should be able to do as poster #2 explained.
you can add nailers or blocking to the trusses to account for a truss that is over 24" from the next if you're on a joint

 

[Kaizen]

Right should fall in middle. Might want to spend some time measuring out the spacing before nailing anything. If a truss is bowed pull it straight if you can and add a 2x above screwed down to it to keep straight. What size ply are you using? Leave access door if you plan on blowing insulation ever


Sent from my iPhone using Garage Journal

 

[kwb]

Install something that won't burn.

I watched my neighbors garage burn 2 months ago and the areas that were drywalled were far less devastated than the areas that weren't drywalled.

 

[Marctrees]

Make SURE you run the plywood in the correct orientation... 8' sheet dimension goes perpendicular onto 5 bottom chords, NOT the 4' direction onto 3.

Marc

 

[ddawg16]

Install something that won't burn.

I watched my neighbors garage burn 2 months ago and the areas that were drywalled were far less devastated than the areas that weren't drywalled.

There is NO advantage to using plywood vs something else.

That plywood will light up faster than anything else if you have a fire source. OSB might take a 'little' longer to light up,....but once it does, no stopping it.

Some guys put OSB on the walls....they take their chances.

If you really want a ceiling...consider drywall or metal. Or....nothing.