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Every house has a frame. Though some houses utilize steel framing, most houses are made of wooden beams, floor joists, walls studs, roof rafters and related components.To insure the structure's strength, these parts are connected using basic engineering principles.
The first step in constructing a house is to lay foundation for it. Foundation and footing deliver loads from the house down to solid soil.So the foundation should be very strong. The footing is wider than the foundation to spread out loads. Weight of roof materials and loads compresses roof rafters, which pull ceiling joists from each end, placing them under tension. The resulting triangle transfers roof loads out to rafter ends where the weight is carried by supporting walls.
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