Deck & Patio
Outdoor living spaces with structural safety implications — deck collapses cause deaths yearly. Inspection first, then boards, railings, stain, and sealing.
Overview
Decks and patios extend outdoor living but demand ongoing maintenance and safety awareness. Structural failure — often from the ledger board (where the deck attaches to the house) — causes deaths and injuries every year. Annual inspection is essential.
Beyond structure, the routine work is board replacement, railing tightening, staining/sealing, and dealing with rot. Wood decks need re-sealing every 2–3 years to prevent moisture damage. Composite decks need less maintenance but cost more upfront.
Most common fixes in this room
The highest-search-volume issues for this space, each fully documented with safety-first framing, ranked causes, and cost estimates.
By category
Every corner of this room, organized by what's involved. Click any sub-category for the full inventory of fixes and projects.
Structure & safety
Ledger boards, joists, posts, beams. Annual inspection critical.
Boards & decking
Board replacement, screw popping, gap issues.
Stain, seal & finish
Stain types, application, when to re-seal.
Patio & concrete
Concrete patio cracks, pavers, sealing.
Materials used in this room
Tools for this room
Project cost guides
Annual deck safety inspection
Check every spring — especially on decks 10+ years old:
- Ledger board: Check bolts (not nails) attaching deck to house. Look for rust, water damage on ledger or siding above.
- Joist hangers: Every joist should be secured with a metal joist hanger, all fasteners intact.
- Posts: Check for rot at ground level. Push against posts — any movement is a warning sign.
- Railings: Test by leaning firmly. Any give = fail. Railings must support 200 lbs of horizontal force per code.
- Boards: Probe suspicious spots with an awl or screwdriver — soft wood is rot.
If anything looks concerning, do not use the deck until inspected professionally. See deck inspection annual.
Frequently asked questions
Every 2–3 years for transparent/semi-transparent stains; every 3–5 years for solid stain. Test by sprinkling water on the deck — beads up = still sealed; soaks in = needs re-staining. See how often to re-seal.
Pressure-treated pine: 15–20 years with proper maintenance. Cedar: 15–25 years. Redwood: 20–30 years. Composite: 25–50 years (near lifetime). Poorly maintained decks fail much sooner — rot at ground contact and ledger attachment are typical failure points.
Screws — always. Nails pop up over time due to wood movement, creating trip hazards. Stainless or corrosion-resistant coated deck screws are worth the cost — they don't rust and don't stain the wood.
Composite = wood fibers + plastic (Trex, TimberTech). PVC = pure plastic (Azek). PVC is more expensive, doesn't absorb any moisture, and doesn't stain — but composite is more common and has come a long way in durability.