Raised bed lifespan.

[Drawweight]

I had raised beds built 4 1/2 years ago out of 200 x100 timber.

I’ve just noticed they are starting to rot at the point where the soil stops.

Is that about the average lifespan? They’ll probably last years yet before they eventually fail tho.

In the event of them eventually having to be replaced what route should I take to avoid the same situation.

[RustyMX5]

I soaked ours with decking oil which seems to have helped a bit.