However we have observed outward movement of garage foundation walls where there had been unbalanced fills as little as eight inches.
How to pour retaining walls for a garage floor.
Due to its greater weight a solid concrete wall is capable of retaining a little higher unbalanced height of backfill.
Concrete retaining walls are used for a variety of aesthetic and practical reasons around a home and yard.
Building codes used to stipulate that the floor of an attached garage be four inches lower than the floor level of the house.
For example if you are pouring a retaining wall that will be 12 inches thick and will use wooden planks that are 1 1 2 inches thick for your forms you ll need to space the stakes about 15 inches apart 12 inches for the retaining wall plus two pieces of 1 1 2 inch thick wooden board.
The second long wall returns to the house at 400cm internally garage continues with existing house wall.
Today s residential building code does not include this requirement.
Advantages of concrete walls.
Old habits die hard.
The rationale for requiring this little step was that it would prevent spilled gasoline gasoline vapors and carbon monoxide from getting inside the house.
Trouble is bco either wants engineer s design for retaining wall or says he will accept secondary garden wall outside garage build with gap as it s not part of project for inspection thereby losing me internal dimension of garage.
Unbalanced fill is the height of the garage floor slab above the outside grade.
When installed properly concrete offers much more room for customization than any other retaining wall material.