2 x 4 for floating deck using Deck Block Possible?
I am building a small (about 5 ft by 11 ft) rectangular floating deck to butt up to an already existing concrete block using these Deck Blocks. http://deckplans.com/how-it-works
Instructions say to use 2 x 6 as the supporting boards but, because of my grade situation, I would like to use 2 x 4's instead.
If I absolutely have to use 2 x 6's, is it okay to bury the extra 2 inches of the deck block in the soil? I live in Seattle where there is no frost problem but it is damp almost all year round.