Decks in Connecticut go through a punishing annual cycle — snow load, months of trapped moisture under that snow, then a humid summer. The surface tells you almost nothing about how the structure is doing. Here is the check we run, in the order that matters.
Start with the ledger. Always.
The ledger is the board bolting your deck to the house, and it is the single most common cause of deck collapse in the country. Go underneath and look at it directly.
- It should be fastened with through-bolts or structural screws — not nails
- There should be visible flashing above it, directing water out and away from the house
- Rust streaking below the fasteners means water is getting in around them
- Press a screwdriver into the rim joist behind it — any softness is a serious finding
Then the posts, at ground level
Posts rot from the bottom, where they meet soil or concrete and stay damp longest. Probe each one at the base with a screwdriver. If it sinks in easily, that post is compromised regardless of how sound it looks at eye level.
Check that post bases sit on proper footings and that none have shifted or heaved. Frost movement over several winters will rack an entire deck out of square.
Joists, beams, and hangers
Look along the joists for dark staining, splitting, or sagging between supports. Then check the metal — joist hangers should be fully nailed with the correct fasteners, and heavy rust means they have been getting wet for a long time.
A bounce underfoot when you walk the deck usually means joist span or spacing is inadequate, or a beam has begun to fail.
Railings and stairs
Push firmly outward on the railing at several points along its length. It should not move. Railings carry real code-specified loads, and a post anchored only through the decking rather than to the frame will not hold.
On stairs, check that stringers are solid where they meet the ground and that treads are secure. Stair failures cause more injuries than deck failures do.
Only then, the surface
Once the structure checks out, look at the boards. Splintering, cupping, popped fasteners, and grey weathering are all surface issues — real, worth addressing, but not urgent the way a soft ledger is.
If you are going to re-stain, wash first and let it dry fully. Stain applied over dirt, mildew, or greyed fibers will not penetrate and will fail within a season.
What to do with what you find
Surface wear is maintenance. A soft ledger, rotted post, or railing that moves is a safety issue, and it should not wait for a convenient season.
Ever Pro Builders inspects decks free of charge across our Connecticut service area. We start underneath, photograph what we find, and give you a clear line between what is genuinely unsafe and what is simply worn — because those two things deserve very different budgets.