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-   -   Get 6" x 6" porch posts off the concrete (https://www.contractortalk.com/f50/get-6-x-6-porch-posts-off-concrete-417495/)

jeep03kj 04-01-2019 05:14 AM

Get 6" x 6" porch posts off the concrete
 
1 Attachment(s)
Newbie here, thanks in advance for any help you can provide.

Customer has seven 6" x 6" x 7' square porch posts supporting the roof. The posts are painted, treated, general 6x6s, nothing fancy and have been in place for well over 25 years.

Each post sits right on the concrete deck with a vinyl railing between each post. I was hired to repair/replace one of them that had significant rot at the base. I ended up removing the entire post and replacing with a new 6x6 treated post on an aluminum pedestal base to keep it off of the ground. Not only did the homeowner not like the look of the Simpson post bases, the side "straps" on the Simpson interfered with the mounting brackets of the vinyl bottom rail.

Here are my questions:

1. The new 6x6 was not as heavy as the original post (3/16" thinner) so I had problems with reinstalling the vinyl rail. Suggestions? Don't tell me to cut down an 8x8, please.

2. The other six posts should be lifted off the ground before they rot too. I plan on using a floor jack to support the structure, one post at a time. Then, I need to cut 1" off of the bottom of each post while still in place. Suggestions on making an accurate/straight cut this close to the concrete? Chainsaw? Or do I pull it completely out and deal with top ornamental moulding and railing later?

3. I was able to secure the pedestal base to the new post before putting it in place. Any suggestions on attaching a pedestal base to a post already in place? Or is this where I need a Simpson base?

Open to suggestions, but I don't want to complicate a seemingly easy task of jacking up the roof, cutting an inch off the post bottom, sliding in a base to elevate it, then calling it a day.

Image from street view attached.

woodspike 04-01-2019 05:36 AM

you don`t necessarily have to" jack up" the roof.

just a couple of double 2x4`s on each side should hold it up fine .you can cut them an 8th tight , and hit them in place with a sledge ,
i`d take each 6x6 out , one at a time , and work on them
then your putting in a finish product each time.

cutting them cleanly in place would be a beeeyatch:censored:

if these are getting painted , can you set the fasteners into the wood , then bondo , or spackle over them?

client has to know this is a " function over aesthetics" situation
your gonna see fasteners . they have to be there .

even if you had used metal posts . they would still show a bottom plate , and bolts.

unless , you want to chip out the cement , and bury the fasteners too .

hope this helps

p.s. , gonna have the same problem with the 6x6 rotting
since its sitting on cement.
i guess you could put tar-paper under it , and and also paint/seal the bottom of it.
ideally you`d want it to sit off the floor, like when you put a metal post, and wrap it in wood, but keep it off the floor a good 3/4 inch

jeep03kj 04-01-2019 05:49 AM

Thank you.

Yeah, I'm not going to "jack up" the roof, I was just going to use a jack to take the weight off. I tried some 2x4's and a sledge on the first post, but they just splintered. I'll use a floor jack, piece of square stock, and some 2x6 to distribute the load at the top.

I'd like to cut them in place for sure. Am I nuts? I wouldn't get a clean enough cut with the wandering blade of a Sawzall so I considered a chainsaw.

I don't follow you about "if these are getting painted , can you set the fasteners into the wood " -- what fasteners do you mean? If I use the Simpson post brackets?

The new 6x6 isn't on the concrete now, it's up 1" on a pedestal base. Is that what you were referring to about it rotting?

Thanks again.

Adamthebuilder 04-01-2019 06:39 AM

Can you cut back the bottom rail and wrap the base with some 1x8 composite? Keep them off the concrete about 1/8 to allow it to breath, but it will keep the water out.

Can you make a cut with a circular saw on the front and back, and then cut in between with a good, old fashioned hand saw? If you wrap the base with the 1x8 it could hide an flaws with your cut.

greg24k 04-01-2019 06:58 AM

To cut the posts I used an undercut saw, Crain makes one and if you don't have one you can rent from HD, run that saw along the deck it will trace even contour of the deck around the post the rest of the cut you can finish with a sawzall as others suggested.

As the column goes there are many options, you can build your own columns using PT lumber and do a column wrap using the same material... I would plan to make the column a "tat" wider and trim down the railing, the way they have spindles installed you will not know the difference if you need to trim them 1/2-3/4".

Stunt Carpenter 04-01-2019 09:20 AM

You could use a base like this Simpson or a Ozco so they look nicer than the standard post base.

https://uploads.tapatalk-cdn.com/201...8e1f0e03f1.jpg

Calidecks 04-01-2019 12:12 PM

Get 6" x 6" porch posts off the concrete
 
Simpson makes a composite standoff (CPS6) that can slide in after you cut the post, if the rot isn't too high. To connect it, maybe a lag from below.https://uploads.tapatalk-cdn.com/201...61e6af562d.jpg


Mike.
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[emoji631] [emoji631]

Deckhead 04-01-2019 05:56 PM

For the base to have any hold down don't you have to take the post all the way out so you can fasten the base to the concrete?

Take the whole thing out and use a knife base if she doesn't like the exposed sides. Cut a couple plugs if they don't like the holes and be done with it.

Calidecks 04-01-2019 10:54 PM

Looks to me like the Posts are not on concrete.


Mike.
_______________
[emoji631] [emoji631]

Deckhead 04-02-2019 11:41 AM

Quote:

Originally Posted by jeep03kj (Post 7515015)
Newbie here, thanks in advance for any help you can provide.

Customer has seven 6" x 6" x 7' square porch posts supporting the roof. The posts are painted, treated, general 6x6s, nothing fancy and have been in place for well over 25 years.

Each post sits right on the concrete deck with a vinyl railing between each post. I was hired to repair/replace one of them that had significant rot at the base. I ended up removing the entire post and replacing with a new 6x6 treated post on an aluminum pedestal base to keep it off of the ground. Not only did the homeowner not like the look of the Simpson post bases, the side "straps" on the Simpson interfered with the mounting brackets of the vinyl bottom rail.

Here are my questions:

1. The new 6x6 was not as heavy as the original post (3/16" thinner) so I had problems with reinstalling the vinyl rail. Suggestions? Don't tell me to cut down an 8x8, please.

2. The other six posts should be lifted off the ground before they rot too. I plan on using a floor jack to support the structure, one post at a time. Then, I need to cut 1" off of the bottom of each post while still in place. Suggestions on making an accurate/straight cut this close to the concrete? Chainsaw? Or do I pull it completely out and deal with top ornamental moulding and railing later?

3. I was able to secure the pedestal base to the new post before putting it in place. Any suggestions on attaching a pedestal base to a post already in place? Or is this where I need a Simpson base?

Open to suggestions, but I don't want to complicate a seemingly easy task of jacking up the roof, cutting an inch off the post bottom, sliding in a base to elevate it, then calling it a day.

Image from street view attached.

Quote:

Originally Posted by Calidecks (Post 7515555)
Looks to me like the Posts are not on concrete.


Mike.
_______________
[emoji631] [emoji631]

Original post says they are.

Calidecks 04-02-2019 01:08 PM

Quote:

Originally Posted by Calidecks (Post 7515555)
Looks to me like the Posts are not on concrete.


Mike.
_______________
[emoji631] [emoji631]



Still looks to me like it's not sitting on concrete. The deck looks to be a cantilevered structure. The post looks to be sitting on top the cantilever. https://uploads.tapatalk-cdn.com/201...00acd85a71.jpg


Mike.
_______________
[emoji631] [emoji631]

rblakes1 04-03-2019 11:10 PM

I'm assuming that's the one he replaced already and set on the Simpson bracket. The others on the right of the photo look to be on the concrete

-Rich

Calidecks 04-03-2019 11:33 PM

Quote:

Originally Posted by rblakes1 (Post 7516683)
I'm assuming that's the one he replaced already and set on the Simpson bracket. The others on the right of the photo look to be on the concrete

-Rich



That deck doesn't look like concrete unless it's a cantilevered concrete deck which is doubtful. From the looks of the picture it's an elevated deck with a beam holding it up. Maybe it's my eyes.https://uploads.tapatalk-cdn.com/201...59870f0f5e.jpg


Mike.
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[emoji631] [emoji631]

rblakes1 04-03-2019 11:37 PM

My front porch is concrete over top of a wood frame, it has a small cantilever to it as well. Might be something similar going on there.

-Rich

Calidecks 04-04-2019 10:12 AM

Quote:

Originally Posted by rblakes1 (Post 7516699)
My front porch is concrete over top of a wood frame, it has a small cantilever to it as well. Might be something similar going on there.

-Rich



I that's concrete over framing the concrete is very thin. Or the framing is very thin. Looks to me like sitting on top of the deck and bolted from underneath is still the most viable option, imo. Regardless of the material.


You don't even need to remove the Posts if the rot isn't too high. Just cut the bottoms out surgically. Add a standoff, bolt through the bottoms and you're done. Bada bing.


Mike.
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[emoji631] [emoji631]

Bluudog 04-07-2019 09:04 AM

5 Attachment(s)
You say the current posts have been there for 25 years and only 1 post rotted at the bottom. I see this quite often due to weather, shade, water drainage, vegetation etc.
I wouldn't be inclined to cut off the bottoms of the other posts. I would talk them into wrapping the other posts in vinyl (match railing), trim railing to fit, seal the bottoms and add trim on bottom of posts.
There are many types of post wrap options - cellular pvc sheet wraps, extruded vinyl wraps.

Deckhead 04-07-2019 03:56 PM

Seems like there's a couple posts missing in here.

Wonder if it's a glitch or something...


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