Floor Supports?

 
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tcalo
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Post by tcalo » Sun. May. 08, 2022 1:58 pm

I don't mean to hijack the thread, so please forgive me. I was planning on doing the same thing and could use some feedback. I included a rough plan of my basement area under my hearth. I finished up my hearth late fall and used a lot of heavy stone. I haven't experienced any issues regarding the weight yet but would feel better with some added support. I'm torn whether to us one or two Lally columns. I have about a 5' span running parallel to the main support and about a 4' span running perpendicular from the main support. Part of my hearth area sits directly over the main support as you can see from the picture. Having never installed a column or had to ever deal with one any advice would be great. Thanks!!

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tcalo
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Post by tcalo » Sun. May. 08, 2022 2:33 pm

Correction!!! After more measuring I found that the hearth does not sit over the main support beam, it lines up perfectly with it.

 
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tcalo
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Post by tcalo » Mon. May. 16, 2022 10:56 am

I decided to use one adjustable lally column supporting 2x6 beams. I used 3 six foot beams since the plate on the column was 4.5” wide and the lumber came precut at 6 feet. I cranked the column screw until the floors above started creaking and everything was solid. I secured everything with screws and nails. A bit on the expensive side, but peace of mind!!

 
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Sunny Boy
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Post by Sunny Boy » Mon. May. 16, 2022 11:31 am

Those adjustable lally columns can support several stoves. :D

I used two of them to push two stories and roof of a sagged section of my house back up to what it was in 1892 so I can add laminated beams where they cut through to extend that side of the house. ;)


Paul

 
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tcalo
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Post by tcalo » Mon. May. 16, 2022 3:22 pm

Sunny Boy wrote:
Mon. May. 16, 2022 11:31 am
Those adjustable lally columns can support several stoves. :D
I think the specs were in the 17k pound range for one column! I used it mainly to support the weight of the stone on the hearth. I wasn’t sure if the weight would cause any issues, but didn’t want to find out!


 
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Post by Bubbalowe » Tue. May. 17, 2022 7:58 pm

The bounce test will tell the tale, I poured a 2" thick concrete hearth 3 x 5' and my 100 year old house was crying for support, luckily the basement is unfinished and didn't mind a couple more steel posts.

 
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Post by Hoytman » Tue. May. 17, 2022 10:29 pm

My hearth is 5”x42”x7’ on the floor with 5” of hearth wall that is 5”x7’x8’ of concrete and stone. Big Hitzer 354 sitting on top of all that.

All that weight (hearth wall at least) is mostly sitting on block foundation support wall running under the center of the house...which is built on rock...this entire area is mostly layers of limestone shelf rock. There’s a piece of 1/2”x5”x5” angle iron underneath the floor joists with two screw jacks helping to support the floor of the hearth and the stove. Been that way since 1976 best of my knowledge...since Pap remodeled and added the hearth. No sagging what-so-ever that I can tell.

I can’t imagine how much this hearth weighs, but I’m sure it’s well over a ton and maybe over two tons or more. In a way, I’d like to tear it all out. Sort of hate to though since my grandpa and dad built it. It would be a major job to tear out and an absolute mess in the house. I’d have to put plastic walls up to contain the dust and put a vacuum on the plastic walls to help contain and exhaust all the dust. That’s a project for when and if we ever decide to remodel.

Currently, we’re more than satisfied with the hearth for now. Only exception is that it has broken a few toes over the years. I keep telling the wife that when one of us breaks a toe it’s getting ripped out. LOL!!

Glad my Pap didn’t fall on it when he fell when he got sick. Always worry about someone tripping over it and hitting their head.

 
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Post by musikfan1968 » Wed. May. 25, 2022 9:34 pm

warminmn wrote:
Sat. Apr. 09, 2022 9:16 am
Real good job musikfan. And you can adjust it if it shifts a little too.
Thank you. I was happy with the way it turned out.

 
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Post by charlesosborne2002 » Mon. May. 30, 2022 10:12 am

musikfan1968 wrote:
Sat. Mar. 26, 2022 4:26 pm
I did a search on the forum and didn't find anything related to this question, so if there's information on it, someone please direct me to it. Otherwise....

I'm told that my Franco Belge weighs close to 500 lbs. Do you think I should have metal beam support in the basement underneath it? My house is 100+ years old with narrow oak flooring. I'm putting the stove in a corner with a hearth pad underneath it. I was planning to put one up just for reassurance but wondering if it's actually necessary. What do you think?
Consider that a house should be made to accommodate a piano with person, or 4 people on a couch, either of which can be heavier than your stove. A room full of people dancing would be tons, jumping up and down. Your platform for the stove spreads the weight. Near the corner or weight-bearing wall is even stronger, unless there is termite damage or rot under there.

 
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Post by musikfan1968 » Thu. Jun. 09, 2022 9:04 pm

charlesosborne2002 wrote:
Mon. May. 30, 2022 10:12 am
Consider that a house should be made to accommodate a piano with person, or 4 people on a couch, either of which can be heavier than your stove. A room full of people dancing would be tons, jumping up and down. Your platform for the stove spreads the weight. Near the corner or weight-bearing wall is even stronger, unless there is termite damage or rot under there.
Funny you should mention a piano. About two weeks after my coal stove was set up, I acquired a full sized upright piano which probably weighs at least 600 pounds. I shored up the floor under that part of the living room as well. I've got major weight in my living room now, but we'll be fine.


 
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Post by Wal » Fri. Jun. 10, 2022 3:17 am

Hi , I recently was doing work on my daughters house . I had a antique stove that she loved and so I ripped out the old gas fire , lifted the floorboards and used concrete sinder block to support the existing joists . As you can see I made a brick surround , then concrete , then Yorkshire stone , plus the weight of the stove so very heavy . Always better to be safe than sorry . 👍

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tcalo
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Post by tcalo » Fri. Jun. 10, 2022 11:49 am

Looks nice, good job!!!

 
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Post by freetown fred » Fri. Jun. 10, 2022 1:03 pm

YEP, that'll surely distribute the weight!! Nice job W!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! :)

 
Wal
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Post by Wal » Fri. Jun. 10, 2022 2:02 pm

Cheers Fred 👍

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