Floor Supports?

 
musikfan1968
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Post by musikfan1968 » 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?


 
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freetown fred
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Post by freetown fred » Sat. Mar. 26, 2022 4:40 pm

What do you have for floor beams now--mine is 200 yrs old with actual logs for support beams. I'm thinkin metal support beams are WAY over-kill!!! My pad is 4X5--2X4's on edge==heavy tile on top of 1/2" plywood

 
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Post by musikfan1968 » Sat. Mar. 26, 2022 5:39 pm

freetown fred wrote:
Sat. Mar. 26, 2022 4:40 pm
What do you have for floor beams now--mine is 200 yrs old with actual logs for support beams. I'm thinkin metal support beams are WAY over-kill!!! My pad is 4X5--2X4's on edge==heavy tile on top of 1/2" plywood
I don't know exactly what I have but they are pretty hefty - 100+ years old, so I'm probably closer to what you have.

 
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Post by mntbugy » Sat. Mar. 26, 2022 5:40 pm

I have 8 stoves in the living room, 4 in the dinning room. The floor is still OK, for now. :what: :clap:

 
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Post by warminmn » Sat. Mar. 26, 2022 8:05 pm

I put a support under my 500 pound stove in my basement but instead of going down my floor went up :o Something with my basement wall I imagine.

I think if you even out the weight so its on 3 or 4 supports you'll probably be fine.

 
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Post by billdean » Sat. Mar. 26, 2022 8:23 pm

My house is 100+ years old also. Back then they had real 2 x 6,8,10,12. Or at least mine does. It was all ruff sawn lumber and much stronger than todays stuff. Now the foundation, thats a different story. If it sets on a big Hearth pad that will spread it out some also, but they have some weight too, if they're tile.

 
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Post by michaelanthony » Sat. Mar. 26, 2022 9:17 pm

The first two stoves I put in my living room weighed approx. 450 lbs. without coal. I was concerned about the floor so I ran a block line perpendicular to the joists below the stove. A few months later I checked the line and nothing moved. I should have known my house was built by papermill workers 70's years ago!


 
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Post by musikfan1968 » Sat. Mar. 26, 2022 9:28 pm

Thanks all, for your valuable input. I appreciate it. I have a feeling that the joists in my basement are probably pretty hefty, but I will most likely just put one of my steel posts under it for extra reinforcement. Better to be safe than sorry. I'm sure I'll be fine.

 
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Post by oliver power » Sat. Mar. 26, 2022 9:50 pm

I'll give you my opinion. These old farm houses were built back when heavy cast iron stoves were used. So, as long as the floor feels solid, and with no bounce, you should be fine. That being said, nothing wrong with a little extra insurance. My Uncle put a short wooden support beam under his Mark-III. He also has a pad made of brick, and brick going up the wall as well. I'm talking real full size brick. Personally, I'd put support under my stove. These things are heavy. Why would I want to strain the floor joist.

 
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Post by musikfan1968 » Sat. Mar. 26, 2022 10:04 pm

oliver power wrote:
Sat. Mar. 26, 2022 9:50 pm
I'll give you my opinion. These old farm houses were built back when heavy cast iron stoves were used. So, as long as the floor feels solid, and with no bounce, you should be fine. That being said, nothing wrong with a little extra insurance. My Uncle put a short wooden support beam under his Mark-III. He also has a pad made of brick, and brick going up the wall as well. I'm talking real full size brick. Personally, I'd put support under my stove. These things are heavy. Why would I want to strain the floor joist.
Yep. I'm right there with you.

 
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Post by fig » Sun. Mar. 27, 2022 1:55 pm

Not every house is the same. I had about 10 stoves in my house for several years. Over time the floors really began to sag. Pulled them all out except for three. The sagging is still progressing. I started putting in floor joist supports last year. I only have one stove over an unsupported span and it sagging more then any. I put a lolly post under it but it needs a bigger support spread underneath. I should have supported the floors better to begin with or maybe just not brought so many stoves in the house. I would definitely recommend a four corner support of some form under the floor where the stove is IF there is a large span between the supports.

 
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Post by freetown fred » Sun. Mar. 27, 2022 2:33 pm

F, did ya build a hearth for them to distribute the weight? Mine is 4X5 with absolutely no sagging.

 
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Post by musikfan1968 » Sun. Mar. 27, 2022 3:24 pm

fig wrote:
Sun. Mar. 27, 2022 1:55 pm
Not every house is the same. I had about 10 stoves in my house for several years. Over time the floors really began to sag. Pulled them all out except for three. The sagging is still progressing. I started putting in floor joist supports last year. I only have one stove over an unsupported span and it sagging more then any. I put a lolly post under it but it needs a bigger support spread underneath. I should have supported the floors better to begin with or maybe just not brought so many stoves in the house. I would definitely recommend a four corner support of some form under the floor where the stove is IF there is a large span between the supports.
what is a "four corner support"? I have beams in my basement that are anywhere between 20 and 22 inches apart. They are about 2.5 inches by 7 inches - older random width beams. My stove is going to be on an angle so I'm trying to figure out which beam will be the best one to shore up.

 
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Post by fig » Mon. Mar. 28, 2022 8:13 pm

I just meant I would try to support the four corners of the stove from beneath the floor if there was a wide span between the floor joist supports. Probably overkill.

 
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Post by freetown fred » Mon. Mar. 28, 2022 8:28 pm

M,if ya feel more comfortable--by all means--go for it!! :)


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