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I am wanting to open our stairwell to the basement by

Customer Question
removing one of the walls...
I am wanting to open our stairwell to the basement by removing one of the walls. Trying to determine if the doubled 2x9 joist will need to be supported, if so, in which way that will optimize my open space.
Submitted: 11 months ago.Category: Structural Engineering
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Customer reply replied 11 months ago
In the provided image the RED line is the span of the doubled 2x9 which is 6ft. The GREEN lines span to the right and rest on a load bearing wall, and to the left and rest on the foundation wall (both left and right span for 9ft). This home is single story with an attic. The flooring above is wood sub-floor with laminate finish.
Customer reply replied 11 months ago
I forgot to mention the floor joists are 12" on center.
Answered in 7 hours by:
9/18/2017
Structural Engineer: walkereng, Consultant replied 11 months ago
walkereng
walkereng, Consultant
Category: Structural Engineering
Satisfied Customers: 3,052
Experience: Over 30 years of Structural Engineering experience.
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Thanks for the picture.

What wall do you want to remove?

Do you have a picture from back a ways, so I can get a feel for your configuration?

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Customer reply replied 11 months ago
Sure!
Structural Engineer: walkereng, Consultant replied 11 months ago

If you want to remove the sidewall along the stairway, you would need to replace the green joists that butt into the red (double 2x10) with clear span single joists.

You will also need to double or triple up the clear span joist that you will put in right above the wall you want to remove.

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Structural Engineer: walkereng, Consultant replied 10 months ago

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