08:49AM | 07/23/04
Member Since: 07/22/04
2 lifetime posts
I wish to open a masonry wall in a walkout basement. The wall was formerly the outside wall of the (brick and block) house; a small addition was later added and I wish to open an access into this addition at the basement level.

The wall continues up to the roof of the original house--two additional stories plus attic gable. I want to cut an opening perhaps 6.5 feet high and 8 feet wide in the basement level of this wall. (BTW, the support beam on which the 1st-floor joists rest is parallel to the wall-to-be-removed and is not over the area to be cut. It won't be an issue, as far as I know.)

I will be seeking a professional to do the work, but seek feedback beforehand. Is this easily doable? Does it require a steel header be placed at the top of the opening? Would a wood header do?

Glenn Good

04:08PM | 07/29/04
Member Since: 09/10/03
314 lifetime posts
A wooden header in a masonry wall is not adequate. You should use a 16" tall concrete & rebar reinforced "bond beam" header or a steel beam for an opening thiat wide.


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10:37AM | 08/10/04
Member Since: 08/09/04
5 lifetime posts
I have a simular situation, where I need to cut an opening in my partually inside/outside wall.

The only difference is, I'm only opening 27 inches (vice 4 feet) and I only have a roof, vice second floor and roof.

You say, a wooden header will not do. However, my house was built with a 2x10 header on top of the cinder block / half wall. I already know I can cut away the cinder block, but can I take 27" inches off the 2x10 wooden header?

I believe this is a load bearing wall but, again, it's only for the roof.
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