"Zipadee Doodar" wrote in message
...
I inted to lay decking over a tatty concrete area at side of house.
What is
the minimum depth of joist to use? I want to keep the increase in
floor
height to a minimum. Would I get away with something like 2 x 2 inch
joists
laid on thin roof slates to raise and level them over the concrete
like
this....

====================== deck board
[ ] 16in [ ] 16in [ ] 2 inch joists
== == == slate / tile
leveller
/////////////////////////////////////////////////// concrete
base

or is this a recipe for a quick (though short) descent?

TIA
ZD

Info & diagrams etc at ;
http://www.deckingweb.co.uk/deckingw.htm
http://www.pavingexpert.com/featur05.htm

Jenny