Productivity – Expected out-turn for a half-brick partition wall What is the typical expected out-turn (productivity) per mason per day for constructing a half-brick (about 115 mm thick) partition wall?

Introduction / Context:
Expected out-turn helps planners estimate labour requirements, duration, and cost. For partition walls, productivity is measured by surface area (m^2) instead of volume, because thickness is standard and small.

Given Data / Assumptions:

• Half-brick wall ≈ 115 mm thick using common bricks.
• Average working conditions and normal course heights.
• Skilled mason with helper(s), typical 8-hour shift.

Concept / Approach:
Industry thumb rules place half-brick masonry productivity around 4–6 m^2 per mason per day, depending on site factors. A commonly adopted nominal for planning is 5.0 m^2/day.

Step-by-Step Solution:
Identify measure ⇒ area in m^2 for half-brick partitions.Adopt standard nominal value from schedule norms ⇒ 5.0 m^2/mason/day.Check plausibility against typical range (4–6 m^2) ⇒ within range.

Verification / Alternative check:
Productivity norms in departmental handbooks commonly quote 5.0 m^2/day as a planning basis for half-brick partitions under average conditions.

Why Other Options Are Wrong:

• 1.5 m^3 and 2.0 m^3: incorrect unit (volume), not the conventional surface measure.
• 4.0 m^2: on the low side for average conditions.
• 6.5 m^2: optimistic and not a conservative planning value.

Common Pitfalls:
Confusing m^2 with m^3 or using rates for full-brick masonry, which are significantly different.

Final Answer:
5.0 m^2