Recent content by AlexEthridge

That is not exactly what I intend to do. My original idea is to add the 2.875" (5.5 ripped, minus .125 for the saw blade) to the bottom of the current joists, effectively changing the 1.5 x 7 joists to 1.5 x 9.875 and the 1.5 x 7.25 joists to 1.5 x 10.125 (actual). To be clear, I intend to add...

Thanks for all the good info.

Thanks for the comments. I forgot to mention this is a full basement house so adding supports in the middle isn't practical. BridgeMan, I can't grasp how turning the grain flat could possibly be better. That is counter-intuitive to my understanding of wood strengths. Sandwiching more 2x8's...

I discovered my "2x8" floor joists are actually 7&1/4 and many actually 7" with NONE at 7&1/2 that one would expect. The span is 13 feet and the floor is "bouncy". My idea to increase rigidity is to add another two and a half inches to the bottom of the existing joists using a 2x3 attached...