DIY Home Improvement Forum banner

Deck blocks for floating deck

642 Views 5 Replies 4 Participants Last post by  ront02769
I am building a low level floating deck using deck blocks and to line it up with an existing attached deck I have to dig the deck blocks into the ground about 5 inches.
I would like to minimize any heaving in the winter and my thought was to put about 4 inches of gravel underneath them and then an inch of leveling sand to help get the water away.
Is this overkill since they are designed just to basically sit on the ground?
1 - 2 of 6 Posts
Unless this is a temporary deck forget about the deck blocks.
How low is this deck going to be?
Low level decks tend to rot out because there's no way for them to dry out.
There needs to be at least 12" of air flow under the deck.
Need real piers set below the frost line for this to stay level.
  • Like
Reactions: 1
1 - 2 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.