The original post: /r/diy by /u/ProjectObjective on 2024-11-11 00:59:22.

HI all, I have bathroom remodel I am doing and the floor was quite wonky. This room was a porch that was enclosed long ago and it settled and the joists were in bad shape. Ultimately it was decided that the best thing to do was to tear out subfloor and full length sister the joist adjusting the sisters to proper level and fastening with a few structural screws. This worked quite well and the floor is significantly more level than it was, and we are going to put .75 inch advantech down. That being said, it certainly isn’t perfect. Some of the original joists were twisted and screws sometimes have a mind of their own and even with a laser line we are only human so we do have some slightly high and low spots. Obviously I know shimming is an option but that might be easier said than done with the spots being a bit random and you might have a post that is foot long of a cereal bowl shape with a max discrepancy of and 8th of an inch. No easy way to make a shim for that. I will use gorilla glue on the joists before I put the advantech down and probably use 1.5 inch structural screws to fasten it and that might be enough but wanted to see what others thought. Maybe there is a product I can put on the joists other than gorilla glue that will not only bond but take care of any low spots? Maybe a tape? Any suggestions at all are appreciated.