Deck Talk

-Groove it Up or Down?

Some companies use treated pine with the ribbing facing up as a non-slip surface.  This, in fact, is fixing the boards upside down and encourages the mould to grow in these grooves which cannot only be dangerous but unsightly.
In fully exposed conditions, reeded decking will absorb more water when it rains hence it will stay wet longer and will more than likely deteriorate faster.
Reeds down allows airflow underneath the deck.