I've been mulling this over since I had a portion of my
bathroom floor replaced back in January. That was due to
a leak that went undetected until it was too late. Bathroom
plans are to do to a complete remodel in the near future.
But my question is, is something like angle iron or some other
type of brace ever used under the subfloor to lend support?
Don't laugh, it's a legitimate question although many may
think it's a silly one. I'm simply curious if this is ever
| But my question is, is something like angle iron or some other
| type of brace ever used under the subfloor to lend support?
| Don't laugh, it's a legitimate question although many may
| think it's a silly one. I'm simply curious if this is ever
Anything's possible. I've used I-beams in the past
where I couldn't fit wood. You can find charts that
translate their support values. But without details
there's no way to make any further sense of your
If the floor is so rotted that the toilet fell thru, just put down
three or more layers of floor tile on top of the rotted wood. Then
mount a new toilet, and you're good to go!
If you still feel the need to add bracing, just put one or two bungee
cords below the toilet, between the floor joists.
Wouldn't say "never", but certainly in residential would be exceedingly
rare. IIRC from earlier thread, this would be in reference to laying
tile and rigidity for same; normally if the floor were judged to be too
flexible, it would be fixed simply by sistering additional joist
material to existing with, perhaps if there weren't living space below
some vertical support added underneath in a crawlspace or unfinished
On Thursday, July 28, 2016 at 2:26:16 PM UTC-4, ItsJoanNotJoann wrote:
There are a multitude of ways to support a floor from below, but it
really depends on what you are trying to accomplish and, maybe even
more importantly, *why* you feel it needs extra support.
Bracing can be done from below the joists to support the entire floor
or blocking could be installed between the joists to just support the
However, unless you can tell us what is wrong and/or what you are trying
to accomplish/fix we can't offer any specific advice.
Do you have access to the subfloor from underneath? -- for example, if there
is a basement or crawl space under the bathroom with an open ceiling?
If so, usually the bracing is done with wood, not metal -- unless you meant
a metal lally column underneath and an angle iron to support several joists
If there is no easy access from underneath, when you do the remodel the
contractor can probably remove the existing fixtures, remove the subfloor,
and rebuild the joists to create a strong and level new floor.
On Saturday, July 30, 2016 at 1:55:47 PM UTC-5, TomR wrote:
Thanks, yes, I have access to the floors beneath as I have a daylight
basement. I was just wondering why when houses are built they
don't ever use something like angle iron as extra strong bracing for
bathroom floors. But someone else in another post said the problem
of rusting would then be a problem. When the bathroom remodel occurs
they'll definitely be doing some repairs to the floor as I'd like to
have floor heating installed as well. (I have a somewhat extensive
Galvanized iron lasts for years. Windmills that were put up
are still standing. Irrigation systems are galvanized and still
forty years. There is also galvanized Super Strut or its equivalent.
might be handier if the builders want to use it.
On Saturday, July 30, 2016 at 10:04:19 PM UTC-4, DerbyDad03 wrote:
Bathrooms have existed and supported all the traditional stuff for
hundred plus years using wood construction. Steel is used in special
applications, but only when needed and that isn't for a bathroom,
unless something unusual is going on.
On Saturday, July 30, 2016 at 9:04:19 PM UTC-5, DerbyDad03 wrote:
Gee, I must have upset your apple cart by asking a question.
A question that probably makes no sense to you, but it's a
question just the same.
I'm not going to run my questions by you in advance
to make sure they meet with your approval.
On Saturday, July 30, 2016 at 10:54:15 PM UTC-4, ItsJoanNotJoann wrote:
Let us look back...
"I was just wondering why when houses are built they don't ever use
something like angle iron as extra strong bracing for bathroom floors."
"They don't ever use "something like angle iron" because it is not needed."
I also asked:
"Why do you think bathroom floors need extra support?"
Shall I repeat your words? They apply to my question, as much as they
applied to yours:
"...it's a legitimate question..."
Some might call it "making conversation".
I could react the same way you did and ask what crawled up your ass so far
that caused you think I was mocking you in some way, but I won't. If you've
had a bad day, I hope tomorrow is better.
| I was just wondering why when houses are built they
| don't ever use something like angle iron as extra strong bracing for
| bathroom floors. But someone else in another post said the problem
| of rusting would then be a problem.
That shouldn't be an issue. The main reason is simply
cost. If the floor isn't leaking then the wood structure
should be adequate. The joists are not the problem.
The water leaks are the problem. Therefore, extra
reinforcing with i-beams would just be wasted money.
Though I've renovated bathrooms (maybe even more
often than not) where plumbers have ignorantly cut/burned
away so much structure that it's hard to see why the
tub didn't fall through.
Since you have open access from underneath, you're all set for whatever you
have in mind -- bracing, floor heating (although I don't personally know how
they do that), etc.
I was thinking that you were originally asking in regard to trying to brace
or correct a problem floor that developed in your bathroom area. I see now
that you were mostly just curious in general if steel or angle iron is ever
used for bathroom floor bracing/support and, if not, why not.
I have a "row home" (townhome?) style triplex property with an open
basement. The properly was built in such a way that there is a steel I-beam
running across the basement about 2/3 of the way back from the front of the
property. The first floor floor joists run from the front of the property
back to and on top of the I-beam, and from the back of the property forward
to and on top of the I-beam. I have a person who does work for me who is
multi-skilled but his real forte is anything to do with framing and framing
structural support. Due to some poor design in the structure of the
property (built in the early 1940's), and the way in which the property
settled over the years, the first floor hardwood flooring had a "hill" or
high spot where the I-beam is located and low spots everywhere else. That's
because the I-beam area never settled at all where the rest settled a
little. Strangely (to me), we were able to resolve the "high spot"/"hill"
issue by supporting the floor joists temporarily, then undercutting them a
little with a sawzall above the I-beam, and then lowering them down onto the
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