Recent content by spikyspikyspiky

Wow, didn't realize gluing onto the bottom adds so much more strength than sistering. I guess it's like creating the 2x8 that should have been used originally. Didn't know that approach was ok. BUT, you mean glue the narrow edge of the new 2x4 onto the bottom edge of the existing 2x4, right...

wow, thanks everyone for all the suggestions. Since the ceiling isn't finished (the joists are exposed), and since that middle beam is doing a good job of halving the old 20 foot span (yes, it is supported by a post in its middle as well as the ends), therefore: I am concluding my quickest...

My 1934 2-car garage has 2x4 ceiling joists with floorboards on top, intended for light storage in the "attic." The garage is 20x20. The 2x4s are 24" apart, and originally had 20-foot spans across the garage. Then a more recent owner added a 4x6 beam under the center of the span and supported...