Removing a Load Bearing Residential Wall

[am7553]

I am helping a friend determine a header size to replace a load bearing wall in a residence. It will be supporting the roof loading and attic loading since the ridge beam is supported randomly along the center bearing wall. These are my loads: SL = 20 psf, Roof DL = 10 psf, Attic LL = 20 psf, Attic/Ceiling DL = 8 psf. The span is 15 ft and the tributary width is 12.5 ft (ignoring the sloped roof is slightly longer). Based on my calculations I will need a 14" deep PSL or (2) 14" deep LVL's to support the load. Does this seem correct? I'm surprised how large the moment/deflection is. Also is framing a 14" deep header an issue with 2x6 framing above? Thank you

 

[JLNJ]

Your beam reaction is pushing 5000 pounds, so, yes, think through the load path to the ground.

As far as the size goes, if your load derivation is correct, you are in the neighborhood of a 4x14 member. Deflection around a half inch? Doesn’t seem too bad.

Are you taking a shear wall out?

 

[am7553]

The wall is just drywall on each side so I would assume no. Thoughts?