There are several types of footing systems used in construction:
1. Spread Footings: These footings distribute the weight of the building over a wider area to increase stability.
2. Strip Footings: These footings are long and narrow, used for load-bearing walls.
3. Pad Footings: These footings are used to support individual columns or posts.
4. Combined Footings: These footings combine two or more column loads into a single footing.
5. Raft Footings: These footings are used in areas with soft or unstable soil to distribute the load evenly.
6. Pile Footings: These footings use deep pilings driven into the ground to support the weight of the building.
7. Slab-on-Grade: These footings are placed directly on top of the soil and function as both a foundation and floor for the building.
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