1 Answer. Show activity on this post. Generally speaking, floating slabs are not suitable as post footings. You’re likely to see cracking under load, and if the soil underneath is unstable you’ll see substantial settling.
Can deck post rest on concrete slab?
In order for posts to properly resist varying degrees of weight, posts must rest on and be anchored to concrete footings. It’s important to note that patios and pre-cast concrete piers do not qualify as proper footings for deck construction. To anchor posts to concrete footings, you need to use a post base connector.
Can I put deck posts on top of concrete?
Deck posts set in concrete increase rot and make it impossible to replace the post in the future if it is damaged. Also, in many jurisdictions, setting deck post in concrete is illegal; instead, deck posts need to be placed above the concrete footing extending below the frost line to 6″ (150mm) above grade.
Can you put a post on a concrete slab?
You can surface mount a post that will have more than one point of support, such as a post that attaches to both a concrete slab and a covered roof, or a post that supports a handrail that’s also attached to a house. Post bases, typically made from metal, attach directly to the surface of the concrete.
Can decking be laid on slabs?
Install the Decking Boards
An easier way to install decks over patio slabs, whether stone or concrete, is by using composite decking tiles. For decking tiles, you won’t need to prepare the installation area. Most tiles will have interlocking clips. They are easy to install and maintain.
Will a deck post rot in concrete?
Quote from the video:
Quote from Youtube video: Any water does not drain out it actually gets whipped up into the post which actually could promote rot sooner in that post.
Can I pour concrete around deck posts?
Quote from the video:
Quote from Youtube video: It's a way to most people would go yeah and he is right it's not a good thing to do you could do it but it's still not a good thing to do what you do is you temporary shore up the roof.
How do I attach deck posts to concrete slab?
Quote from the video:
Quote from Youtube video: We get screwed in with some structural screws to the sides. And then some structural concrete screws down into the concrete securing.
How do I attach decking to a concrete slab?
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Quote from Youtube video: And set the drilling depth on the masonry drill bit just remember that most slabs are only about 100 millimeters thick so make sure you don't drill all the way through or you may have moisture.
Can you deck on top of patio?
Even if your patio is in terrible shape, you can deck over it. Cracks, craters and seasonal movement along cracks are no problem. But beware of these three situations: If an area is badly cracked and sinks noticeably year after year, any decking you put over it will also sink and develop a low spot.
Can wood post sit on concrete?
Wood on Concrete or Other Masonry
Pressure-treated wood is not required if an impervious moisture barrier and a 1-inch metal or masonry pedestal separate the post from the earth by a total of 6 inches in basements or in weather-exposed locations.
How long will wooden posts last in concrete?
The post will only rot at ground level, it does not matter what you put in the bottom of the hole. A pressure treated post will last around 10 years.
How long will a 6×6 treated post last in concrete?
A PT post will last a long time in concrete, maybe 5 to 10 years in soil alone. I suggest you embed the post in concrete, trowel a peak around the post so water runs off, and don’t let the PT post come in contact with the ground.
What should I put between wood and concrete?
Anyplace where wood meets the ground or concrete, the lumber must be pressure treated. For additional moisture protection, a gasket or strip of closed-cell foam can be installed between the concrete foundation and the sill plate.
Can pressure treated wood be encased in concrete?
Most isn’t. You’d need lumber that is. You won’t keep it from getting wet underground, but you can keep it from being constantly saturated by giving the concrete sleeve a drain at the bottom. One strategy is to set the post on gravel and just pour the concrete around the post, not under it.
Can pressure-treated lumber be set in concrete?
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Quote from Youtube video: As all treated wood does. And it the concrete needs something else to really fastened into strongly. So all I do. Let's take a few exterior rated 3-inch screws in my impact driver. And I'm just going
How long will a treated 4×4 post last in the ground?
A treated 4×4 will last 20 to 25 years in the ground if the conditions in the soil and climate are favorable. That number could increase to 40 to 75 years if you install the treated 4×4 in a cement ring rather than the soil. There are a few factors that influence how long the 4×4 can last in the ground.
