Seasoned timber — the typical moisture content of well-seasoned wood is approximately: Select the correct range.

Introduction / Context:
Moisture content directly affects timber strength, dimensional stability, and susceptibility to decay. Proper seasoning lowers moisture to a level compatible with service conditions, minimizing shrinkage and warping after installation.

Given Data / Assumptions:

• “Well-seasoned” refers to properly air- or kiln-seasoned timber for building use.
• Ambient indoor conditions are assumed (not extreme deserts or humid tropics).
• We are selecting an indicative range, not an exact single value.

Concept / Approach:
Equilibrium moisture content (EMC) for indoor service typically lies around 10% to 12% in many climates. Air seasoning often achieves 12%–20%; kiln seasoning can target 10%–12% for internal joinery, flooring, and furniture, providing good dimensional stability.

Step-by-Step Solution:

Verification / Alternative check:
Timber practice guides recommend kiln-drying targets around 10%–12% for interior applications to balance stability with practicality.

Why Other Options Are Wrong:

• 4%–6% or 6%–8%: Too low for typical indoor service without special conditioning.
• 8%–10%: Possible in select climates, but 10%–12% is the widely cited band for “well-seasoned.”

Common Pitfalls:
Confusing “air-seasoned” broader ranges with “well-seasoned” targets for interior service.

Final Answer:
10% to 12%