Building Construction
The dimensions of a half queen closer, are

9 cm × 9 cm × 9 cm
9 cm × 9 cm × 4.5 cm
1.8 cm × 4.5 cm × 9 cm
9 cm × 4.5 cm × 9 cm

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Building Construction
Raft foundations are used for:

All listed here
Providing increased area of foundation over poor bearing capacity of soil
Counter acting the hydrostatic effect
Spanning over small soft or loose pockets

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