Correct way of building step/small deck outside patio sliding door

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Old 04-04-20, 05:15 AM
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Correct way of building step/small deck outside patio sliding door

I had a step/small deck outside the patio sliding door which was sinking from the middle. Finally decide to take it apart and discovered the timber piece attached to the house was rotten. It was bolter in the sides and joist were nailed to it. Now wgsts remaining is 3 posts and that timber piece in the front. I've never done any woodwork but keen to start with this little project. I have a jigsaw and a drill. What's the correct way of making the step ot small deck?

 
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Old 04-04-20, 05:28 AM
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If it was me, I would consider putting a concrete pad or step.
 
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Old 04-04-20, 06:01 AM
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Id get dimensional pavers and build a step and eliminate all the wood!
 
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Old 04-04-20, 06:24 AM
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Marq,
Explain what you mean. How would secure the pavers
 
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Old 04-04-20, 08:26 AM
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Building a stoop flush with any door threshold is a big no no!
Sure way to have water getting in under the door.
 
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Old 04-04-20, 08:49 AM
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Agreed. Slightly below entrance, about an inch or so. If not a concrete pad, I would opted to just making a wood one or two step stair.
 
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Old 04-04-20, 09:19 AM
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Yep, tear all that wood out of the ground and pour a thick pad out of concrete so that the top of that step will be at least 1" below the threshold of your door. You would build a 3 sided form (out of 2x6's for example) then anchor a few 2x4 blocks to the pad around the outside of it with Tapcons (so that the concrete doesn't push it away) and then fill it with concrete.
 
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Old 04-04-20, 02:18 PM
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How would secure the pavers
Remove the wood around the existing hole, dig out the loose dirt, bring in some sharp gravel, limestone and compact.

Using dimensional pavers, different sizes but approx 4x8x12, typ used to build retaining walls or patio features like fire places, pits, steps.

Stack and use concrete adhesive, much easier than pouring a pad, easy to construct, durable and attractive!

 
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Old 04-04-20, 07:11 PM
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Sorry guys should have specified that it has to be a deck as on the other side of the patio is another sliding door which has an identical small deck.
 
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Old 04-05-20, 04:21 AM
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Pertinent information is always helpful, a picture of the "other" deck would be good, might consider if this one was bad is other heading down the same path thus do this one right/better then when the other one is gone do that one right!
 
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Old 04-06-20, 12:08 AM
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One more thing, I'm in New Zealand.
Here are a couple of pictures of other deck which was repaired few years ago but not by me so no idea how it was fixed.
also a picture of the broken one while I was ripping it apart.
 
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Old 04-06-20, 01:50 AM
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By the looks of the step and the crack in the patio it looks like the area settled causing the step to collapse. Whatever you decide to do you need to put in some deeper posts to get more support!
 
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Old 04-06-20, 04:02 AM
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I thought it collapsed because no posts on the house side. Only a ledger board attached to the concrete base with bolts at the ends, none in middle.
 
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Old 04-06-20, 06:08 AM
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Looks to that the ledger rotted out and that is why it failed.
Also that the patio has risen in the middle of the deck but does not seem to be affecting the deck.
You like the look so I would build the replacement the same way.
Adding a bolt to the center of the ledger would be a good idea especially if there is bounce in the center of the good deck.
Use pressure treated lumber if not for all at least for the sub structure.
Looks like you have room so I would use a 2X6 as a ledger especially if you cannot add a bolt.
Build it basically the same as the old one.
Check that what is left is not rotted/punky.
I would use decking screws to hold the sub structure together.

There is one thing that I do when ever I have wood up against concrete.
I vapor barrier it.
I use old 3 tab shingles cut to size and the grit up against the concrete.
My theory is that moisture wicks out of the concrete and eventually rots out the wood, Or at the very least speeds it up.

Also I do not mount a ledger directly to a building but mount blocks to the building and then the ledger to the blocks. I also calk the sides and the top of the blocks, not the bottom.
This will probably not work in this situation.
 
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Old 04-06-20, 01:54 PM
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Thanks. I believe Attaching ledger to the house is not complaint with current building code here anymore as far as Im aware. I could put the ledger again but is there an alternative! How about putting 3 posts exactly opposite the current posts instead of ledger? Will that work?
 
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Old 04-07-20, 03:27 AM
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I cannot say as the post you install may sink.
Another possibility is to place a couple cement blocks (sidewalk blocks would probably do) and rest the the back of the deck on them. and use the front posts to hold everything in place.

Hard to say without knowing the soil.
 
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Old 04-12-20, 06:14 AM
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Why would the posts sink? Can I not install 3 posts opposite the existing ones close to the house? The whole you see in left corner, I started digging that for post. Soil is clay.
 
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Old 04-13-20, 03:46 AM
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Post could sink because of the wight of the deck pushing downward.
Not sure I understand the question.
Basically this is why a concrete pier/pile is used under deck posts.
Also issues with the wood rotting over time.

In this case there will not be much weight on the posts so it may well work out OK.
My point was that if the house side does sink then with in ground posts it may be difficult to re-level it.
 
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