Sufficient for most hot tubs.
Second floor deck support.
So build your deck the right way from the ground and posts up.
That means that once you have the footings in place you need to install posts which will support the beams that in turn support the joists that support the decking and eventually you your family and friends.
Deck post size is important.
But there s a lot more to know about hot tubs and decks.
Fill each hole partway up with dry quikrete concrete mix and then drop the posts in allowing the desired height level of support post extend above ground level.
In the past many decks were built with 4x4 support posts also called structural posts.
And if a deck is over 10 feet tall you should install bracing.
But these can bow seriously even if a deck is only 3 feet off the ground.
It is up to you how high your deck extends onto the second story however a typical height is 8 9 feet.
Decks built ground level up to 2 feet off the ground can support up to 100 lbs per square foot.
Check the structural soundness of your.
Inspect the concrete supports underneath on grade decks for cracks or damages.
For that reason we strongly recommend that you use 6x6s instead even if your building department does not demand them.
The added support posts should be no more than 30 apart ideally placed in poured concrete.