Hardwood floor cupping or warping
Steps
- Look for the moisture first: cupped boards near the dishwasher, fridge, a bathroom door or an exterior wall point at a leak; cupping across the whole floor points at humidity from below or in the room.
+5 more steps in the full guide
Stop and call a pro if
- the floor is spongy, boards are buckling upward, or there is a water stain on the ceiling below