What is necessary for a building to be properly squared?

To ensure that a building is properly squared, it is essential for opposite walls to be parallel and for the diagonals to equal each other. This geometric principle ensures that the structure is rectangular, allowing for proper alignment and structural integrity.

When walls are parallel, they maintain consistent spacing, which is crucial for the overall design and function of the building. Furthermore, measuring the diagonals serves as a check that all corners are square. If the two diagonals are equal, it confirms that the angles formed by the walls are right angles, and the structure is not twisted or skewed. This alignment is vital, as any misalignment can lead to structural issues, problems with fitting windows and doors, or difficulties in future renovations.

Other options present considerations that are important but do not directly address what is necessary for squaring a building. While having all corners at a right angle contributes to squaring, the fundamental relationship of parallel walls and equal diagonals is the primary determinant of a structure being squared correctly.