Timber sizes — A sawn piece whose cross section exceeds 5 cm in one direction and 20 cm in the other is termed as

Introduction / Context:
Timber trade terms distinguish sawn sections by thickness and width because these affect structural use, drying behavior, and finishing. Knowing the correct nomenclature avoids confusion in specifications and procurement.

Given Data / Assumptions:

• Cross section exceeds 5 cm in one dimension and 20 cm in the other.
• Common British/Indian timber terms are intended.

Concept / Approach:
“Deal” traditionally refers to sawn softwood with thickness roughly 50–100 mm and considerable width (commonly above ~200–230 mm). It sits between boards/battens (thinner) and large baulks/cants (much larger, square or rectangular heavy sections).

Step-by-Step Solution:
Thickness criterion: > 5 cm → thicker than board/batten/strip.Width criterion: > 20 cm → wide section typical of deal.Compare: baulk (very large), cant (large squared timber), strip (narrow piece).Hence, the correct term is “Deal.”

Verification / Alternative check:
Traditional timber tables align “deal” with ~50–100 mm thickness and widths above 200 mm, matching the description.

Why Other Options Are Wrong:
Cant: a large squared log section, usually much heavier.Baulk: very large section timber, typically greater than deal in both dimensions.Strip / Board: thin or narrow sections, not exceeding the given sizes.

Common Pitfalls:
Regional terminology variations exist; always pair the term with explicit dimensions in contracts.

Final Answer:
Deal