Table of Contents
- Vietnam timber classification: where rubber tree wood sits
- Key properties of rubber tree (Acacia) wood
- Common Acacia species grown in Vietnam
- Advantages of Acacia wood
- Limitations to be aware of
- Main applications of Acacia wood
- Related articles
- Frequently asked questions about rubber tree (Acacia) wood
- Contact ICD Vietnam
Reviewed and updated by ICD - Week 30/2026
Rubber tree wood (Acacia) is classified as Group III under Vietnam’s official timber grading system - the standard issued by Decision 2198-CNR/1977 of the Ministry of Forestry. Group III timber has a density of 0.65-0.95 g/cm3, good strength and flexibility, and is one of the most cost-effective structural woods available in Vietnam. These characteristics make it the leading material for wood pallets, furniture, and industrial packaging.
Vietnam timber classification: where rubber tree wood sits
Vietnam’s eight-group timber classification ranks wood by hardness, durability, density and colour. The table below shows where Group III sits relative to adjacent groups.
| Group | Density (g/cm3) | Typical species | Common use |
|---|---|---|---|
| I - II | above 0.95 | Ironwood, rosewood | High-end furniture, structural beams |
| III (Acacia) | 0.65 - 0.95 | Acacia hybrid, Acacia mangium | Pallets, furniture, flooring, paper pulp |
| IV - V | 0.45 - 0.65 | Rubber wood, pine | Light furniture, packaging |
| VI - VIII | below 0.45 | Balsa, soft plantation wood | Paper pulp, chipboard |
A minority of sources list Acacia as Group IV, but Group III is the classification accepted across the Vietnamese timber trade and by the major standards documents.
Key properties of rubber tree (Acacia) wood
| Property | Detail | Relevance for buyers |
|---|---|---|
| Density | 0.65 - 0.95 g/cm3 | Heavy enough for load-bearing pallets; lighter than ironwood |
| Colour and grain | Pale yellow to warm brown; straight to wavy grain | Accepts stain and finish well; suitable for visible furniture |
| Hardness | High for a plantation species | Resists impact and abrasion; low warping and cracking |
| Stability | Low shrinkage and movement after heat-treatment | Maintains shape in Vietnam’s variable humidity and temperature |
| Pest and moisture resistance | Good after heat-treatment or chemical impregnation | ISPM-15 compliant pallets require heat treatment to 56 degC core |
| Machinability | Saws, drills, planes and glues cleanly | Efficient production; diverse product shapes possible |
| Harvest cycle | 7-10 years for pulp; 10-15 years for structural grade | Fast-renewing; lower raw material cost than hardwood Group I-II |
Common Acacia species grown in Vietnam
| Species | Characteristics | Main growing regions |
|---|---|---|
| Acacia hybrid (Keo lai) | Cross of Acacia mangium and Acacia auriculiformis; fast growth, stable quality, drought-tolerant | Binh Phuoc, southern provinces |
| Acacia mangium (Keo tai tuong) | Large trunk, 40-50 cm diameter at maturity; grown for structural timber and pulp | Northern and Central Highlands provinces |
| Acacia auriculiformis (Keo la tram) | Smaller trunk; fast growing; used for pulp and land rehabilitation | Northern provinces: Thai Nguyen, Lao Cai, Phu Tho |
Advantages of Acacia wood
High durability and dimensional stability. Dense fibre structure and low moisture content after drying means minimal shrinkage and cracking over time - important for pallets that go through repeated loading cycles.
Pest resistance after treatment. Heat treatment at 56 degC core temperature for 30 minutes or chemical impregnation gives strong protection against termites and mould. This treatment is also the ISPM-15 requirement for export pallets.
Climate adaptability. Acacia wood does not warp or crack when exposed to the humidity swings common in Vietnamese warehouses and during sea container shipments.
Ease of processing. Despite high hardness, Acacia cuts, drills, and planes cleanly. It absorbs stains and surface finishes evenly, enabling a wide range of product specifications from one species.
Sustainability. Short harvest cycles of 7-15 years and capacity to grow on poor soil make Acacia one of Vietnam’s primary sustainable plantation species. Growing trees also sequester carbon, an increasingly important factor for exporters meeting ESG reporting requirements.
Cost efficiency. Comparable structural performance to more expensive hardwoods at a significantly lower price per cubic metre - the main reason Acacia dominates Vietnam’s pallet and low-to-mid furniture market.
Limitations to be aware of
Load-bearing ceiling. Group III density means Acacia pallets handle typical logistics loads well (up to 2,000-3,000 kg dynamic load with correct design), but they are not the right choice for extreme static loads that would call for Group I-II structural timber.
Appearance grade. Grain and colour are attractive but less distinctive than rosewood or ironwood. For high-end furniture where premium grain appearance is the primary selling point, Group I-II species will be preferred.
Young or untreated wood. Acacia logs under 7 years or timber that has not been heat-treated or impregnated has lower pest and moisture resistance. Untreated wood is only suitable for dry indoor environments with no load stress.
Main applications of Acacia wood
| Application | Why Acacia is used |
|---|---|
| Wood pallets | Load capacity, pest resistance after heat treatment, ISPM-15 compliance, cost efficiency |
| Furniture (tables, chairs, beds, cabinets) | Stability, machinability, ability to accept stains and finishes |
| Flooring and structural boards | Hardness and abrasion resistance |
| Paper pulp | Long fine fibre; harvested at 7-10 years |
| Fencing and outdoor structures | Durability after treatment; low maintenance |
| Construction supports (non-critical) | Adequate strength for light structural applications at low cost |
Related articles
| Wood Pallets - ICD Vietnam Product Range and Pricing | ISPM-15 Heat Treatment for Wood Pallets |
Frequently asked questions about rubber tree (Acacia) wood
1. What durability group is Acacia wood in Vietnam?
Group III under Decision 2198-CNR/1977 of Vietnam’s Ministry of Forestry. Group III covers timber with density 0.65-0.95 g/cm3 and good structural strength. A small number of sources list it as Group IV, but Group III is the classification accepted by the Vietnamese timber trade.
2. What is the density of Acacia wood?
0.65-0.95 g/cm3 depending on species and growing conditions. Acacia hybrid and Acacia mangium grown to 10-15 years typically reach the upper end of this range and produce the best structural timber.
3. Is Acacia wood suitable for export pallets (ISPM-15)?
Yes. Acacia pallets become ISPM-15 compliant after heat treatment to a core temperature of 56 degC for a minimum of 30 minutes, followed by marking with the IPPC stamp. ICD Vietnam supplies heat-treated Acacia pallets for export.
4. How does Acacia compare to pine or rubber wood for pallets?
Acacia is harder and denser than both pine and para rubber (Hevea brasiliensis) wood, giving better load capacity and longer service life for pallets. It costs more per cubic metre than rubber wood but significantly less than Group I-II hardwoods.
5. How many years does Acacia take to harvest?
7-10 years for pulp-grade; 10-15 years for structural-grade timber. Some fast-growing hybrid varieties can be harvested for light uses at around 5 years. The short cycle is a key reason Acacia is Vietnam’s dominant plantation species.
6. Does untreated Acacia resist termites?
Moderately. Untreated Acacia has better natural resistance than soft woods, but for long-term use in warehouses or outdoor environments, heat treatment or chemical impregnation is strongly recommended. Treated Acacia provides reliable protection against termites and moisture.
Contact ICD Vietnam
Hotline: 0983 797 186 / 090 345 9186 / 090 5859 186
Email: sales@icdvietnam.com.vn | Zalo: Chat Zalo
