Timber decking showing rot or soft spots

Rotting Timber Decking: What to Check Before Replacing

Deck boards are replaceable. The sub-frame, joists and posts are the expensive part, so the first job is finding out how far the rot has gone.

Replacing boards over a rotten frame is money spent twice.

Composite Decking and Fencing work by Gardenscape in Essex

Inspecting properly

Probe joists with a screwdriver, especially where they meet posts, where water sits, and at any point in contact with soil. Softness that takes the tip easily means the timber has gone.

Check fixings too — corroded screws in a damp frame are a structural issue.

Why decks rot

Poor ventilation beneath the deck, boards laid tight with no drainage gap, untreated cut ends, and timber in direct ground contact are the recurring causes.

Debris packed between boards holds moisture against the timber year round.

Repair or rebuild

Isolated board replacement is fine on a sound frame. Where multiple joists are affected, rebuilding gives you the chance to correct ventilation, use treated posts on proper supports and set gaps correctly.

Many clients choose composite boards on a new frame at that point, because the boards then outlast several timber cycles.

Frequently asked questions

How long should a timber deck last?

A well-built, well-maintained treated softwood deck typically gives many years; poor ventilation shortens that dramatically.

Can composite boards go on my old frame?

Only if the frame is sound and the joist spacing suits the board specification.

Does staining prevent rot?

It slows surface weathering but will not save timber that stays wet.

Deck feeling soft underfoot?

We inspect frames honestly and rebuild in timber or composite.

Book a deck inspection Call 07535 661664