Originally Posted by Davee
Thanks handyguys. So if I lay 4x4s in sand will that be enough to stabilize the deck boards?
It really depends on how much foot traffic this will get. If it will be used as any walkway quite a bit, I would at least dig footers every 6 ft or so on either side and lay the 4x4's across those. With weather changes you might get some heave if you just put on sand.
Make sure you use heavy duty landscape fabric underneath....not plastic (you'll want drainage, not standing water).