Concrete Foundation Wall Thickness

For plain concrete walls which are walls without or with little reinforcement 7 1 2 inch thickness is.

Concrete foundation wall thickness.

For masonry or concrete construction the minimum foundation wall will be 6 inches. The minimum reinforced concrete footing thickness will be 6 inches or. 4 the thickness and reinforcing of foundation walls made of reinforced concrete block and subject to lateral earth pressure shall conform to table 9 15 4 2 b. The 7 1 2 inch minimum thickness requirement is obviously impractical for a short concrete stem wall as in a crawlspace foundation.

Poured concrete foundation walls that are less than 8 feet tall and have soil outside that is 6 or 7 feet deep against the wall can often be 8 inches thick and function quite well. 3 foundation walls made of flat insulating concrete form units shall be laterally supported at the top and at the bottom. Concrete foundation walls support the home standing above so any weakness can undermine the stability of the house. The thickness of concrete foundation walls shall be equal to or greater than the thickness of the wall in the story above.

The thickness or depth of concrete basement walls plays an integral role in their long term strength and durability. Minimum foundation wall and wall footing thickness. When you are building a masonry or concrete foundation wall it shall have a minimum thickness of 6 inches. It is recommended to have at least 8 inches above the dfe at all points.

Concrete masonry is used to construct various foundation wall types including full basement walls crawlspace walls stem walls and piers. The minimum thickness is also determined by wall height soil classification and the height of unbalanced backfill or backfill on only one side of the wall. Foundation walls need to be at least as wide as the framed wall of the house. Adequate strength needs to be provided and should be demonstrated by analysis in accordance with the aci 318 design equations and the recommendations in this section.

Concrete masonry is well suited for below grade applications because of its strength durability economy and resistance to fire insects and noise. Where a concrete foundation wall is reduced in thickness to provide a shelf. B the thickness of the concrete in the wall above. Foundation walls shall extend at least 8 above the finished grade adjacent to the foundation at all points.

Concrete foundation walls with corbels brackets or other projections built into the wall for support of masonry veneer or other purposes are not within the scope of the tables in this section.