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Stair cavity support
These jacks will support the stair cavity. this is typically a weak area of the floor.
installing he fill
Pouring buckets of engineered fill
Engineered fill
Engineered fill is installed in the cube under the floor which will provisde support for the SmartJack. Landscape cloth keeps the fill separated from the earth.
Engineered base
A 2' x 2' x 2' whole is dug under the basement floor. this cube is filled with engineered filled. The will be the base for the SmartJack. This used the "Bulb of Influence" to distribute the load through the entire cube.
Supporting stairs
Smart Jacks are installed under stiar support to support the cavity