What needs to be fully laid out before constructing the corners of a masonry wall?

The correct answer is that the lengths need to be fully laid out before constructing the corners of a masonry wall. In masonry construction, accurately determining the lengths of the walls is crucial because it ensures that the entire structure is aligned and that all elements fit together correctly.

When the lengths are established, this allows for precise placement of the corners, which are critical reference points for the rest of the wall. If the lengths are not accurately laid out from the beginning, it can lead to misalignment and structural issues as the construction progresses. Establishing correct lengths aids in maintaining uniformity and straightness throughout the wall.

While dimensions, blueprints, and the corners themselves are important aspects of masonry work, the specific action of laying out the lengths serves as a foundational step that influences the accuracy and quality of the entire wall construction process.