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Dig

05:20AM | 08/15/01
Member Since: 08/14/01
6 lifetime posts
Bvbasement
In my basement I have a lolly column that I want to remove. There are 3 2x12s nailed together spanning across the basement. The left and right side rest on a cement column.

The total span is 21ft. There is a column at 7ft then at 14ft.

I have finished the basement so one of the columns is hidden.

I want to remove the other visible column which would leave a span of 14ft unsupported.

I was recently told the best way to do this is to cut 2 of the 2x12s out to a length of 18ft, Leaving the 1 supported by the lolly.

Then purchase a microlam with the dimensions of 5 x 117/8 x 18 and lag and bolt it to the remaining 2x12.

Or remove 1 2x12 and bolt a 31/2 x 11 7/8 x 18 microlam to the remaining 2 2x12s.

What do you think? Any ideas would be greatly appreciated.

Thanks

Jay J

06:26AM | 08/15/01
Member Since: 10/26/00
782 lifetime posts
Hi Dig,

I don't have an answer for you but is the beam carrying a load? If so, do you know how much?

What one might want to know is if you can do what you want with the load that's being carried? You may need something different.

I think in any event, you'll need to install temporary 'supports' until you get your new beam installed. You know, (if you don't get any help here), there are times where paying a professional Architect or Structural Engineer for an answer is money well spent. The LAST thing you need is a 'good excuse' as to how your 1st floor ended up in your basement when you talk to your insurance company.

My best to ya and hope this helps.

Jay J -Moderator

Dig

04:21PM | 08/15/01
Member Since: 08/14/01
6 lifetime posts
Hi J:

Well I do know that my neighbor has already done this using a 1 3/4 microlam lagged to the 3 2x12s.

I have also had 2 different engineering companies, 3 contractors and a french hen look at this and they all had different suggestions, except for the french hen.

Do you know who makes microlams that I might call the manufacturer?

Anyway thanks.

Jay J

04:38PM | 08/15/01
Member Since: 10/26/00
782 lifetime posts
Hi Dig,

No, not directly.

Start poking around the sites here: Microlam Links .... Other than that, if your 'references' say it can be done the way THEY say it can be done, I guess you just need to get it in writing or take your chances. That could be the difference in paying for the information vs. just having someone say what's OK or not OK w/o 'backing it up' (in writing.) I certainly wish you well.

My best to ya and hope this helps.

Jay J -Moderator

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