Identify which types of brickwork are measured in square metres (area measurement) rather than cubic metres in standard quantity surveying practice.

Introduction / Context:
Measurement units in bills of quantities depend on whether the item is volumetric (thick walls) or areal (thin layers/partitions). Correctly classifying brickwork avoids confusion and ensures appropriate rates are applied.

Given Data / Assumptions:

• Honeycomb brickwork forms perforated screens—essentially an area treatment.
• Brick flat soling is a single-layer brick bedding under floors/roads—an areal layer.
• Half-brick (≈10 cm) partitions are thin walls—area-based.

Concept / Approach:
Full-thickness walls (e.g., 20–23 cm and above) are measured in cubic metres because thickness is significant. Thin/one-brick-layer works (soling, honeycomb screens, and half-brick partitions) are measured in square metres, with thickness specified in the item description.

Step-by-Step Solution:
1) Recognize that each listed item is effectively a single course or perforated layer.2) Therefore, unit = square metre, with thickness/spacing stated.3) Summarize: All three items are measured on area basis.

Verification / Alternative check:
Method-of-measurement standards and schedules of rates consistently list these under Sq m items.

Why Other Options Are Wrong:

• Choosing only A, B, or C omits other valid area-measured brickwork types.

Common Pitfalls:

• Measuring half-brick partitions in cubic metres, leading to mispriced work.
• Ignoring void allowances in honeycomb screens per specs.

Final Answer:
All the above..