Got stuck for 6 hours on a weird subfloor hump in an old Portland house

The job was a simple glue-down vinyl plank install, but one corner of the living room had a hump that was almost invisible until you laid a straight edge. I spent half a day with my belt sander and a hand plane trying to flatten it, thinking it was just a high spot. Turns out, a previous owner had sistered a floor joist and left the old lag bolt heads proud by a quarter inch. Had to pull up a section of the subfloor to grind them down. Anyone run into something like that under an old floor?

3 comments

3 Comments

robert_lopez6418d ago

Ever find the lag bolts after you started sanding?

carter.gavin18d ago

Yeah, that's the worst feeling. @robert_lopez64, did you hit one and wreck your paper, or did you find them all first? Always makes me triple check the surface now.

jordan90315d ago

Find hidden problems everywhere once you start looking. My old truck has a weird rattle I only notice after fixing something else. It's like the universe hides little time bombs in plain sight.