As well as being attractive decking provides functionality. Especially useful where there is a substantial difference in height between the floor within the dwelling and the back garden. The spaces between the boards ensure good drainage and therefore allow decks to be laid at the same height as the internal floor. This has the effect of creating the outdoor room that so many people wish to achieve in their patio space.
Decking can be more cost effective than paving as quite often the existing concrete can be left in place with the decking going above. A new development is the use of composite materials which are longer lasting than timber and are a completely non-slip alternative.