Bathroom finishes: To control splash, seepage, and hygienic cleaning, the skirting (dado tiling) on the walls of a bathroom should be provided up to what height?

Introduction / Context:
Bathroom walls are exposed to frequent wetting from showers, faucets, and cleaning. Providing a skirting or dado (a protective, easy-to-wash wall lining, commonly ceramic/porcelain tiles) to an adequate height prevents damp patches, paint failure, and unhygienic mold growth. The question asks for the practical height to which dado tiling should be carried for robust moisture protection.

Given Data / Assumptions:

• Typical residential or institutional bathroom with wall-mounted taps and shower.
• Frequent splash and intermittent direct wetting.
• Objective is durable, maintainable, and sanitary wall protection.

Concept / Approach:
Wet area design targets the splash zone and the height reached by spray during showering. A 2.0 m high dado generally covers the shower spray cone, prevents capillary staining, and allows easy maintenance. Extending to full ceiling height is possible but often unnecessary for cost and aesthetics; very low heights (e.g., only skirting or up to tap level) are insufficient against vertical splash patterns.

Step-by-Step Solution:
Identify the wetted zone in a bathroom: splashes from basin/tap and wide-area spray from shower.Select a height that covers the typical shower cone and user movement → about 2.0 m.Compare alternatives: ceiling tiling increases cost with limited added protection; 15 cm skirting or tap-level protection is too small.Therefore, choose 200 cm as a balanced, standard wet-area dado height.

Verification / Alternative check:
Many building schedules and BOQs specify bathroom wall tiling up to door-lintel height or approximately 2.0 m in shower zones to reduce maintenance and moisture ingress.

Why Other Options Are Wrong:
Ceiling level: Over-provision for most bathrooms; not typically required.15 cm skirting: Protects against mopping only; does not address splash from fixtures.Tap level: Insufficient against shower spray and general splashing.120 cm: Often used in half-height wainscotting, but inadequate in wet zones with showers.

Common Pitfalls:
Assuming minimal skirting is enough; ignoring shower spray reach; not distinguishing between wet and dry zones of a toilet/bath.

Final Answer:
200 cm (2.0 m) above finished floor level.