What goes wrong with Star decks?
Settling, water and wind, more than old age. Many Star decks are young, built on homes from the last decade or two, so the failures we see are less about lumber wearing out and more about how the deck was set into a new yard. The table lists the repair calls that come up most.
| Symptom | Usual cause on Star lots | Typical repair |
|---|---|---|
| Deck tilting toward or away from the house | Footings or blocks set in backfill next to a new foundation | New footings into undisturbed soil, re-level the beam |
| Rail that moves when leaned on | Guard posts only lagged to the rim; wind load on privacy screens | Through-bolted posts with blocking and hold-downs |
| Dark, soft post bottoms or rim | Sprinkler heads hitting the same wood every morning | Move heads, replace members, standoff post bases |
| Bouncy or sinking stairs | Stringers landing on bare soil or a loose paver | New stringers on a concrete pad, clear of grade |
| Gap opening at the house | Ledger nailed or lagged without flashing | Open up, rebolt and flash, or add a beam |
Why do decks on new Star homes settle?
Because the soil next to the house is not the soil the rest of the yard sits on. When a new home is built, the ground around the foundation is excavated and backfilled, and that fill can keep compacting for years, especially once the lawn is watered all summer. A deck built in the first season after closing, on blocks or shallow footings near the wall, follows that fill down. The house side drops, the ledger takes load it was not meant to carry alone, and doors and stair landings stop lining up.
The repair is a new footing beside each settled post, dug through the fill to undisturbed soil and at least to the 24-inch frost depth in Star's design criteria, with the beam shored while the post is reset. It is one of the more common repairs on young Star decks and one of the few where the deck looks fine from the yard until you put a level on it. Our footing depth guide explains frost depth and bearing.
Star's decay rating is low, so why is my deck rotting?
Because water is reaching the same wood over and over. Star's design table rates decay hazard as slight to none and termite hazard as slight to moderate, which reflects a dry climate: NOAA's normals for the Boise airport show only 11.51 inches of precipitation a year. The rot we find is local and man-made, at post bases inside sprinkler throw, on rim joists behind planter boxes, and on joist tops where water sits under each board. Fix the water source, or the new wood fails in the same spot.
The same table rates weathering as severe, and that shows on the surface. Boise's airport averages 108 nights at or below freezing, so water in checks and fastener holes freezes and thaws through the winter, opening wood boards and loosening nails. That is surface wear, and it is usually a board or finish problem rather than a structural one; the deck maintenance guide covers the care schedule.
Can a loose railing be repaired on a windy Star lot?
Usually. What decides it is whether the post and the rim behind it are still sound. Star's design criteria list a 115 mph design wind and Exposure C, the open-terrain category, and decks on open former farm ground take that wind on everything that stands up. Guard posts fastened with a pair of lag screws loosen as the wood shrinks and swells, and privacy screens bolted to the rail put a lever arm on posts that were never built for it. The repair is through-bolting with blocking and hold-down hardware, the kind of detail the American Wood Council's DCA 6 guide shows for a 1,800-pound load.
Under the 2018 IRC, a guard is required where the deck surface is more than 30 inches above grade, at least 36 inches tall with openings that stop a 4-inch sphere. Many Star decks are lower than that and have a rail anyway. It is not required, but a rail people lean on should still be solid, so we fix those the same way.
Do I need a permit to repair a deck in Star?
For boards and hardware, generally not; for structure on a taller deck, ask first. Star's building FAQ lists decks 30 or more inches above grade among the projects that need a permit but does not publish a list of exempt repairs. Replacing boards, tightening hardware or swapping a stair tread is maintenance. Replacing beams, re-footing posts or rebuilding a large section of a deck at that height is closer to new work, so we describe the scope to the Building Department before starting.
If a permit is needed, everything runs through Star's online portal, including payment, and inspections are requested there rather than by phone or email. If you plan to do part of a repair yourself, note Star's owner-builder rule: the owner who pulls the permit does all the work on it. The Star deck permit guide has the details.
Fixing a ledger on a Star home
A loose ledger gets opened up, not screwed tighter. Signs are a gap widening between deck and house, rust streaks below the fasteners, or a first board that slopes. We pull the boards along the house, look for flashing above the ledger, probe the house rim and check what the ledger is fastened with. On newer homes the rim is usually sound and the fix is through-bolts or structural screws on a set pattern plus flashing lapped correctly.
Older homes around the original townsite are another story, because decks there were often added years after the house, sometimes over an old porch. If the rim behind the ledger is soft, the options are opening the wall to repair it or standing the deck on its own beam just off the house. The IRC also does not allow a ledger on stone or brick veneer, which matters on newer homes with a stone wainscot at the back wall. See the ledger board repair guide.
Repair or replace a Star deck?
Repair when the damage is local: a few settled posts, a loose rail, one rotten stair, a ledger that needs flashing. Replace when the joists are soft across the deck, the footings never reached firm soil anywhere, or the guards and stairs all need rebuilding to current dimensions. A deck with all three problems usually costs nearly as much to patch as to rebuild, and our deck replacement work in Star picks up from there.
Published repair ranges are in the deck repair cost guide. Next door, deck repair in Eagle deals more with shaded river framing than with new-home settling. To have a Star deck inspected and get a written list of what fails and what is fine, request an estimate.
Sources
- City of Star — FAQ (building permits, review times, HOA, flood zones)
- City of Star — Adopted Codes & Design Criteria (115 mph wind, Exposure C, 24-in frost)
- City of Star — Building Department
- 2018 IRC as adopted in Idaho — Chapter 3 (guards R312, stairs R311.7)
- 2018 IRC as adopted in Idaho — Chapter 5 (decks R507)
- American Wood Council — DCA 6 Prescriptive Residential Wood Deck Construction Guide
- NOAA NCEI U.S. Climate Normals 1991–2020, Boise Air Terminal (USW00024131)
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