How Should I Fill This Sunken Room? - Flooring - DIY Chatroom Home Improvement Forum

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Old 08-17-2010, 11:45 AM   #1
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How should I fill this sunken room?

I have a sunken living room that is 19' x 14' and 4" deep. It has a 4'' concrete wall all the way around the edges. Can I just fill it with concrete or will the weight strain the house too much?

A family member suggested using 1 or 2" concrete foam blocks and the rest concrete. Is this a better idea or should I just stick with all concrete?

The only reason I do not make a floor with 2x4 and plywood is because I live around New Orleans and prone to flooding. I plan on laying ceramic tile down and I do not want the chance of flood water filling in the sunken room and having to rip out all the flooring. And the deep echo sound is another turn off for a plywood subfloor.

Any other ideas are welcomed.


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Old 09-04-2013, 12:59 PM   #2
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I am in New orleans too. And want to fill in my sunken room. Have you filled in the room? Who did you use? And are you pleased? Thanks


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Old 09-04-2013, 04:20 PM   #3
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Both of you need to post some pictures.
Hi bob you need to go back and add your own post.
When posting in forums, letting us know your location will help others give better feedback/advice/solutions to your questions
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Old 09-04-2013, 09:53 PM   #4
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I'm not in New Orleans and I don't have a sunken living room, but I wish I did.
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Old 09-05-2013, 05:04 AM   #5
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I believe you will be fine----the extra weight should not be a problem on a slab.

A few more details will help.
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Old 09-05-2013, 11:19 AM   #6
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I would just fill it with dirt and plant flowers.
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Old 09-05-2013, 12:17 PM   #7
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I thought about turning mine into a pond for the cats to catch fish that way I don't need to be home to feed them at a certain time.

Actually, my sunken room is currently raised and covered so I can't see anything but I drilled though the plywood and discovered it is only 6" deep by 12' x 15' a least thats the measurement of the hallow sound I hear when I stomp my feet.

I have heard I don't need lightweight concrete to I do need lightweight concrete and Styrofoam to lighten the weight. I want this done right and I am not sure the correct method in a warm climate.

I plan on tiling over the new concrete.
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Old 09-05-2013, 05:46 PM   #8
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Why not just frame over the area and install plywood. Sounds like it is already framed over though. Is the current floor framing inadequate to support tile?


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concrete , fill , living , room , sunken

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