The ledger is the board that fastens an attached deck to your house. If water gets behind it, or the fasteners corrode, it can rot or pull away. That's the most common cause of sudden deck collapse.
Why it's common here Many decks in Round Rock, Wells Branch and Jollyville went up before modern flashing standards. They were nailed to the rim joist with no flashing at all. Central Texas storms can drop inches of rain in an hour, and that water runs straight into the joint. On the clay east side, the house slab and the deck footings move independently, so the connection gets pried open. Sprinklers aimed at foundation beds keep the area wet all summer.
Signs you'll notice - Gap opening between the deck and house wall
- Dark staining or soft wood along the ledger
- Rust streaks from nails or lag bolts
- Deck slopes away from the house
- Bounce or sway near the house connection
- Interior drywall stains on the wall behind the deck
Local patterns We find this most often on 1980s–1990s ranch homes in Wells Branch, Jollyville and older Round Rock. It also shows up on early 2000s builds in Brushy Creek, where decks were added before flashing became standard. Expect more of it after a wet spring.
Our fix: Stop using the deck until it's inspected. We remove the failed ledger, flash the wall properly, then reattach with code-compliant through-bolts or structural screws and lateral load hardware.