![2 X 4 lumber holding up main beam under garage](https://cdn.treehouseinternetgroup.com/uploads/photo_gallery/medium/518830-20240515_095037.jpg?v=1718215877)
2 X 4 lumber holding up main beam under garage
This is a grossly undersized support for something as heavy as a garage floor that has two cars on top.
![Garge over room in basement](https://cdn.treehouseinternetgroup.com/uploads/photo_gallery/medium/518831-20240501_192543.jpg?v=1718215877)
Garge over room in basement
Would you park your car on something that was support by 2x4" lumber?
![Large footing with steel plate](https://cdn.treehouseinternetgroup.com/uploads/photo_gallery/medium/518832-20240610_122708.jpg?v=1718215877)
Large footing with steel plate
Earlier, a large cast-in-place footing was poured under the concrete floor. Once the footing cured, the Smartjacks could be installed. Here a large steel plate goes on top of the cast in place footing
![Top plate](https://cdn.treehouseinternetgroup.com/uploads/photo_gallery/medium/518834-20240610_135715.jpg?v=1718215877)
Top plate
The SmartJack XT is connected to a large top plate which goes directly under the main beam.
![Floor re-concreted.](https://cdn.treehouseinternetgroup.com/uploads/photo_gallery/medium/518833-20240610_135728.jpg?v=1718215877)
Floor re-concreted.
After the install is compilate, the floor is re-finished back to original height.