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Old 11-19-2018, 02:47 PM   #1
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Want to remove basement posts


Trying to make a play space for my kids in the basement, but I have 2 posts that disrupt the room and they keep playing on them and getting hurt. I want to remove them. The basement is 24' wide and 20' long. A 7" I-beam runs down the middle of the 20' section with 12' on either side. 8" floor joists sit directly on top of the beam. The 2 posts I want to remove are almost evenly spaced in the middle of the beam. I am carrying the entire weight of the 1st floor except what the outside block walls carry. I am carrying the entire second floor weight too, but that weight comes down 2' from the outside walls on two columns because of a beam running 16' down the 1st floor ceiling above the I-beam in the basement, which helps get the 2nd floor weight closer to the outside block wall. The roof has clear span trusses so that shouldn't add anymore weight. Height is an issue so I don't want to add a taller beam. Can I leave the existing I-beam in the basement and add 2 more 7" tall 20' long I-beams, one on either side to carry the weight and remove the posts?
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Old 11-19-2018, 03:13 PM   #2
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Re: Want to remove basement posts


No you can't.

Rough numbers, off the record, you'd need an I-beam about 18" tall to carry the load without any supports.

To know for sure...you'd need a structural engineer to evaluate this based on actual loading.

And you would be changing the foundation loadings, the foundation likely would not be adequate to carry the additional weight.
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Last edited by HenryMac; 11-19-2018 at 03:41 PM.
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Old 11-19-2018, 03:24 PM   #3
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Re: Want to remove basement posts


You need an engineer to go over options but from me, no.
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Old 11-19-2018, 03:31 PM   #4
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Re: Want to remove basement posts


I have a 3rd 'No' for you. Wrap the poles with something soft, to make it safe for the children.
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Old 11-19-2018, 03:40 PM   #5
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Re: Want to remove basement posts


Quote:
Originally Posted by Guap0_ View Post
I have a 3rd 'No' for you. Wrap the poles with something soft, to make it safe for the children.
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