Acacia (Short-Leaf Acacia / Walnut-stained Acacia)
Acacia mangium or Acacia confusa · Exotic/Tropical Hardwood
- Type
- Exotic/Tropical Hardwood
- Origin
- Southeast Asia (specifically Vietnam, Indonesia, and Thailand) and Australia.
- Hardness
- 1700 - 2300 lbf (Hard to Very Hard)
- Durability
- Durable. Naturally resistant to rot and decay, though sapwood is susceptible to powder post beetles; highly resistant to moisture absorption.
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Grain Pattern
Predominantly interlocked and wavy grain. The sample shows a flat-sawn cathedral pattern with significant figure, including swirling knots and irregular swirls common in small-diameter tropical logs.
Color & Appearance
Medium to dark brown heartwood with distinct streaks of chocolate and amber. Sapwood is typically light yellowish-white (seen in lighter planks). Features high natural luster and significant color variation between adjacent planks. Tends to darken slightly with age and UV exposure.
Hardness (Janka)
1700 - 2300 lbf (Hard to Very Hard)
Durability & Decay Resistance
Durable. Naturally resistant to rot and decay, though sapwood is susceptible to powder post beetles; highly resistant to moisture absorption.
Value & Sustainability
- Estimated Market Value
- $4.50 - $8.00 per square foot (as flooring material)
- Wood Age Estimate
- 5-10 years post-harvest. The sample appears to be modern pre-finished engineered flooring with a semi-gloss topcoat and minor surface wear/oxidation.
- Sustainability Status
- Generally Sustainable. Not CITES listed. Frequently grown on plantations in Southeast Asia, though FSC certification varies by supplier.
Common Uses
Flooring (engineered and solid), small furniture, cabinetry, cutting boards, and decorative bowls.
Geographic Origin
Southeast Asia (specifically Vietnam, Indonesia, and Thailand) and Australia.
Workability
Challenging due to high density and interlocked grain which often leads to tearout during planing. Glues and finishes well, but requires pre-drilling for screws because of its hardness.
Finish Recommendations
Polyurethane or Aluminum Oxide (standard for flooring). For furniture, penetrating oils or wax enhance the natural chatoyance and grain depth.
Notable Features
Distinctive sweet/spicy scent when cut. High density makes it very heavy. Contains natural oils that provide a smooth texture but can sometimes interfere with certain solvent-based finishes.
