When using the centre-line method for estimating masonry quantities, what is a key requirement?
Correct answer: D. The wall thicknesses and junction conditions must be handled consistently
- A. The foundation depth is ignored in every case
- B. Every wall must have a different measured length
- C. Only the external plaster is measured
- D. The wall thicknesses and junction conditions must be handled consistently
Explanation
The centre-line method uses the total centre-line length of walls and must account correctly for junctions and changes in wall thickness. Inconsistent treatment at intersections can cause overmeasurement or undermismeasurement.
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