Can I leave decking boards untreated?

ferry

Just scrubbed down my decking for the first time as it has come up well.
Now looks like natural wood and I like the finish but I assume I have taken a layer of protection off in the process.

Is it unwise to not treat the decking now or will the wood deteriorate over time if left untreated?

thanks
f

tony6403

The decking will almost certainly be pressure treated (pt). This process forces chemicals into the wood and you will not have taken a layer off.
It's not vital to seal pt wood but a sealer with UV protection can help to retain its colour.

vansboy

If you do re - treat, choose decking oil rather than stain.

Will wear better underfoot.

VB