My 6 year old boy begged for a punching bag for Christmas. The bag and the chain weight about 25 pounds. I have a finished room over my garage where I hung it up. I can't get access to see the exact construction behind the ceiling drywall, but I can tell their are studs running at 24 inches on center. I ran a 28 inch 2X6 across 2 of the beams and used 2, 1/4 inch lags at each junction (see picture). I had my wife hold the 2X6 while I drilled the lags in the pilot holes. She must not have held it tight enough because the 2X6 is not completely flush with the ceiling. There is a 1/2 inch gap between ceiling and 2x6 on one side (see picture). I couldn't fasten it any tighter. My son punched on the bag for a couple of hours last night and everything felt solid. This morning, I noticed there were several barely noticeable pop outs along the beam. I'm thinking I might need to redo the whole set up and maybe run a 2X6 across additional beams, but I don't want to go to the trouble if what I have is solid enough. Will the pop outs keep working their way out or maybe is that just the paint loosening? Any suggestions would be greatly appreciated!