Enclosing a 29" space in the ceiling
I have a bit of a problem spot in finishing my basement. I have a 29" gap that I need to cover with drywall that runs the entire (30') length of the basement.
Here is what I'm dealing with. My trunk line was installed directly against the the main support beam for the basement. My ceiling is very low so I do not have the option of adding support beams under the trunk line (so please no suggestions about adding support beams under the trunk line).
I know that 24in OC is the recommended maximum distance to not get sag out of drywall, so here is what my plan is, please let me know if it will work.
On the outside of the trunk line build a standard soffit wall, on the other side where the trunk and support beam meet I plan on fastening a piece of angle iron to the side of the beam. This will give me something to screw into.
Then take a piece of plywood/osb to screw up to the soffit wall and angle iron. Then screw a piece of 1/4 drywall to the plywood/osb.
First question, will this work without sagging?
Second question, what do you think is the thinnest plywood/osb I could get away with without sagging?
Again, my objective is to have the thinnest result possible. Any thoughts are welcome.
Last edited by toddjb; 11-29-2012 at 09:13 AM.