I am putting an addition on the rear of my house. The plans call for the removal of portions of one existing load bearing wall. I have determined the proper header size and construction, but I am unsure of acceptable methods of supporting the header at one end. If the end of the header is NOT directly over a foundation wall, is it acceptable to sister additional floor joists to provide support for the post?

How close to the foundation is the header post?

If you are removing part of a bearing wall then you should be over the foundation unless you are changing the direction of the header.

Chuck

Unless your house was built without a permit or previously remodeled, I have never seen a bearing wall that didn't sit on the main beam under the house or the foundation wall. Can you explain your situation a bit more? Are you talking about a wall that ends in between a joist?

http://i819.photobucket.com/albums/zz111/lacogada/walls_zps6013d3b0.jpg (http://s819.photobucket.com/user/lacogada/media/walls_zps6013d3b0.jpg.html)

Nice drawings, dannac. But that does not show a bearing wall. There is no support to foundation or girder.

Chuck

http://i819.photobucket.com/albums/zz111/lacogada/wall2_zpse73bf8cf.jpg (http://s819.photobucket.com/user/lacogada/media/wall2_zpse73bf8cf.jpg.html)

I think we need a response from fixacr to get more detail on his layout. How far from bearing wall is header support?

The distance between the lower bearing wall and the post holding the header will have to be determined by a certified architect or construction engineer. And approved by building dept.

Chuck