Question

 What size beam you need to support a 10 ft span load bearing wall?

Answer Depends on how much weight is above it!! but on 1 -2 story wood framed structures triple 2x12's glued and nailed will do the trick
http://wiki.answers.com/Q/What_size_beam_you_need_to_support_a_10_ft_span_load_bearing_...

Top Q&A For: What size beam you need to support a 10 ft span...

Is it necessary when raising a load bearing wall 4 feet to install a new beam in the exact spot where the wall originally was?

that depends: if it's carrying old dimensional lumber floor or ceiling joists that are lapped at the wall, yes. if it's carrying floor or roof trusses, you may be able to get a repair detail from... Read More »
http://wiki.answers.com/Q/Is_it_necessary_when_raising_a_load_bearing_wall_4_feet_to_in...

What size eye beam can safely span 25 feet with a point load of 4000 lbs in the middle?

You will also need to include the acceptable amount of deflection in your question.
http://wiki.answers.com/Q/What_size_eye_beam_can_safely_span_25_feet_with_a_point_load_...

Does an excessively heavy load of bran muffins need to be fixed to a load bearing wall?

How do you build a bread box that will accomodate bran muffins? In Do It Yourself (DIY) - Asked by Uncle Wayne's Uncle Joe - 0 answers - 2 minutes ago If I mixed bran flakes with putty, would that... Read More »
http://answers.yahoo.com//question/index?qid=20070729180559AAn6eJA

What size beam will span 18 feet?

That question cannot be answered without knowing the load on the beam.
http://wiki.answers.com/Q/What_size_beam_will_span_18_feet


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