INTRODUCTION
Petaling is the standard Malaysian name as well as the ASEAN Standard name for wood from the species Ochanostachys amentacea (Olacaceae). In Malaysia, it is known by various vernacular names such as degong (Kelantan), petikal (Sarawak), sentikal (Sarawak), tanggal (Sabah), and tangkal (Sabah). This species, known by only one genus—O. amentacea—is highly valued for its durability and versatility.

The sapwood of Petaling wood is dark yellow-brown or light red-brown, and it is moderately defined from the heartwood, which ranges from red-brown to purple red-brown, darkening further upon exposure to air and light.

Petaling is also recognized by other names internationally, such as Amin, Ampalang, Empilung, Lembasung, Petikal, Pilung, Satan bagiuk, Tilokot, and Tumbung asu (Indonesia).

DENSITY
Petaling wood is classified as a Medium Hardwood in Malaysia, with a density ranging from 800-1,105 kg/m³ when air-dried. It is known for being hard to very hard and heavy to very heavy, making it suitable for a range of robust applications.

NATURAL DURABILITY
Petaling wood exhibits moderate durability when exposed to the elements. It can withstand environmental conditions to some degree but may require treatment for extended outdoor use.

TEXTURE
The texture of Petaling wood is fine and even, with interlocked grain, contributing to its strong and smooth finish when worked on.

STRENGTH PROPERTIES
Petaling wood belongs to Strength Group B (Burgess, 1958) or SG3 (MS 544: Part 2:2001). This strength classification makes it suitable for medium to heavy-duty applications, providing solid and reliable material for construction and manufacturing.

MACHINING PROPERTIES
Petaling wood is relatively easy to saw and work with, producing a smooth planed surface. It is well-suited for various woodworking and construction projects due to its favorable machining properties.

NAILING PROPERTY
The nailing property of Petaling wood is rated as poor, meaning it may not be ideal for applications requiring frequent or heavy nailing.

AIR DRYING
Petaling wood seasons very slowly and may experience slight defects during the drying process. The sapwood is moderately prone to insect attacks. Slight cupping, bowing, end-checking, and surface-checking have been noted during air drying. 13 mm thick boards typically take 6 months to air dry, while 38 mm thick boards may take up to 9 months.

SHRINKAGE
Petaling wood exhibits high shrinkage, with radial shrinkage averaging 1.9% and tangential shrinkage averaging 3.8%. These characteristics should be considered during the drying process.

USES
Petaling wood is highly versatile and suitable for a wide range of applications, including:

• Piling and heavy-duty construction under cover
• Tool handles (impact)
• Heavy-duty furniture
• Railway sleepers
• Telegraph and power transmission posts and cross arms
• Flooring
• Pallets, packing boxes, and crates
• Light-duty columns
• Staircase construction (including carriage, newel, riser, sprandrel framing, stringer, tread, bullnose, round end, and winder)
• Joinery and cabinet making

The post Petaling: Malaysian Wood Supplier – Product Overview first appeared on Creatimber Global.

Tualang Wood: A Durable Choice for Heavy-Duty Construction

Introduction
Tualang wood, derived from Koompassia excelsa, is a medium hardwood known for its reddish-brown to chocolate-brown color. Commonly found in Malaysia and known by various names such as Kayu Raja in Sarawak and Mengaris in Sabah, tualang wood is valued for its strength and durability, making it a preferred choice for heavy construction and furniture.

Key Characteristics

• Density: A Medium Hardwood with a density of 800-865 kg/m³, tualang wood offers robust strength for structural applications.

• Durability: Classified as moderately durable under exposed conditions. However, the sapwood is prone to insect and fungal attacks, while the heartwood is vulnerable to termites.

• Texture: The texture is coarse but even, with deeply interlocked grain that enhances its strength.

Strength Properties

Tualang wood belongs to Strength Group A, making it suitable for heavy-duty projects. Its excellent strength properties ensure durability and longevity in various construction uses.

Applications

Tualang wood is highly versatile and suitable for a range of industrial and construction applications:

• Heavy Construction: Ideal for posts, beams, joists, columns, piling, and railway sleepers. Treated tualang is also used for power transmission poles.

• Flooring & Furniture: It is an excellent choice for heavy traffic flooring and heavy-duty furniture due to its strength and aesthetic appeal.

• Tool Handles: The impact-resistant qualities make it suitable for crafting durable tool handles.

• Other Uses: Fender supports, office and shop fittings, mouldings, and panelling.

Drying & Machining Properties

• Air Drying: Tualang wood dries moderately slowly, with 13 mm thick boards taking 3.5 months and 38 mm boards taking 6 months to air dry. The main concerns during drying are end-checking, surface-checking, and insect attacks.

• Machining: Tualang is relatively easy to resaw, cross-cut, and plane when green, though it becomes slightly more difficult when dry. The planed surface is generally smooth or moderately smooth.

Nailing & Shrinkage

• Nailing: Tualang wood has good nailing properties, making it easy to work with on-site.

• Shrinkage: Average shrinkage, with radial shrinkage at 1.5% and tangential shrinkage at 1.7%, ensures dimensional stability during the drying process.

Conclusion

Tualang wood, with its balance of strength, durability, and versatility, is a reliable option for heavy-duty construction, flooring, and furniture. Its ability to withstand demanding environments makes it an ideal timber for projects that require both functionality and aesthetic value.

INTRODUCTION

The Standard Malaysian Name for the timber of Koompassia excelsa (Leguminosae). Vernacular names applied include kayu raja (Sarawak), mengaris (Sabah) and tapang (Sarawak). This is a monospecific timber. The sapwood is buff-coloured or yellow-brown, often with a pink tinge and is sharply differentiated from the heartwood, which is reddish brown to deep brick-red-brown when fresh and darkens with age to a deep chocolate-brown.  

Also known as Mengaris (Brunei); Bengaris, Mengaris, Menggeris, Sialang, Tualang and Wehis (Indonesia); Koompassia (Papua New Guinea); Ginoo and Manggis (Philippines); and Tulae and Yuan (Thailand).

DENSITY

The timber is a Medium Hardwood with a density of 800-865 kg/m3 air dry.

NATURAL DURABILITY

Tualang is classified as moderately durable under exposed conditions. The durability rating is based on the standard graveyard tests conducted at the Forest Research Institute Malaysia (FRIM) on specimens of dimension 50 mm x 50 mm x 600 mm. In the first series of such tests, all 6 specimens were completely destroyed after 3.5 years (Foxworthy & Woolley, 1930). In the second test, 60 specimens were used and the average service life was 3 years (Jackson, 1965). The sapwood of the timber is susceptible to both powder-post beetle and fungi attacks, while the heartwood is readily destroyed by termites.

PRESERVATIVE TREATMENT

The timber is amenable to preservative treatment and is classified as easy to treat.

TEXTURE

Texture is rather coarse but even except in areas where included phloem occurs. Grain is interlocked, often deeply interlocked. 

STRENGTH PROPERTIES

The timber falls into Strength Group A (Engku, 1988b) or SG 3 (MS 544:Part 2:2001).

Strength Properties of Tualang 

MACHINING PROPERTIES

It is easy to resaw and cross-cut when green but is slightly difficult to resaw when dry. Planing is easy in either condition and the surface produced is smooth to moderately smooth.

Machining Properties of Tualang

NAILING PROPERTY

Nailing property is rated as good.  

AIR DRYING

The timber dries moderately slowly to slowly with slight end-checking, surface-checking and insect attacks as the main sources of degrade. 13 mm thick boards take 3.5 months to air dry, while 38 mm thick boards take 6 months.

KILN-DRYING

Kiln Schedule E is recommended.

Kiln Schedule E 

SHRINKAGE

Shrinkage is average, with radial shrinkage averaging 1.5% and tangential shrinkage averaging 1.7%.

DEFECTS

The major defect that is associated with the timber of tualang is the presence of hard abnormal tissues commonly known as included phloem. It is observed that tualang is even more severely riddled with included phloem than kempas (Koompassia malaccensis). In sawn timber, bands and patches of included phloem similar to those found in kempas can often be seen (Ser, 1981). These zones of abnormal tissues are likely to result in seasoning degrade and mechanical weakness in the timber. Some minor defects that have been recorded are shot holes, pin holes, heart rot and hollow pith. Apart from these, the logs of freshly-felled K. excelsa are generally free from other defects.

USES

When treated, the timber is suitable for all heavy construction, like posts, beams, joists, columns (heavy duty), piling, railway sleepers and power transmission poles. Untreated, the timber is suitable for flooring (heavy traffic), panelling, mouldings, heavy duty furniture, fender supports, office and shop fittings, tool handles (impact) and plywood.

The post Tualang first appeared on Creatimber Global.

Introduction
Resak wood is sourced from Cotylelobium spp. and Vatica spp. and is commonly known as resak in Malaysia. The heartwood varies from pale yellow to deep red-brown, with species-specific grain patterns. Resak is known for its strength, durability, and versatility in heavy-duty applications.

Key Characteristics

• Density: A Heavy Hardwood with a density ranging from 655-1,155 kg/m³ (air dry).

• Durability: Classified as very durable, lasting over 14 years under natural Malaysian conditions. Not resistant to marine borers but moderately durable against other conditions.

• Strength: Falls under Strength Group B (SG4), making it suitable for heavy construction and high-impact applications.

• Machining: Resak can be challenging to saw and cross-cut but generally yields a smooth finish when planed.

Applications

Resak is ideal for:

• Heavy Construction: Used in bridges, beams, and piling.

• Marine Construction: Suitable for fender supports and other marine uses.

• Flooring: Especially for areas with heavy traffic.

• Furniture: Its strength and fine grain make it ideal for high-end, heavy-duty furniture.

• Railway Sleepers & Poles: Suitable for railway sleepers and power transmission poles.

Handling and Drying

• Air Drying: Seasons slowly, requiring approximately 3 to 5 months to air dry without significant defects.

• Shrinkage: Resak has high shrinkage, particularly in the tangential direction.

• Kiln-Drying: Recommended Kiln Schedule B for controlled drying to avoid surface-checking.

Conclusion
Resak wood stands out for its heavy-duty applications, durability, and strength. Its versatility and longevity make it a preferred material for construction, marine, and industrial uses.

INTRODUCTION

The Standard Malaysian Name for the tree and timber of Cotylelobium spp. and Vatica spp. (Dipterocarpaceae). Vernacular names applied include resak (Peninsular Malaysia, Sabah and Sarawak) with various epithets, balau (Peninsular Malaysia) in error, damar keluang (Pahang), jenuong (Johor) and keruing babi (Peninsular Malaysia). Major species include Cotylelobium lanceolatum, C. melanoxylon; Vatica bella, V. cuspidata, V. flavida, V. havilandii, V. heteroptera, V. lowii, V. maingayi, V. mangachapoi, V. nitens and V. scortechinii. The sapwood is lighter in colour than the heartwood and is sharply defined in Cotylelobium but not generally so in Vatica. The heartwood is pale yellow when fresh and turns to deep red-brown on exposure in Cotylelobium and a fine brown with a green tinge in Vatica.

Also known as Resak (Brunei); Chrama:hs (Cambodia); Vatica (India); Giam, Resak and Resak bukit (Indonesia); Chik dong, Mai ka cha, Mai si and Mai si khao (Laos); Vatica (Papua New Guinea); Narig (Philippines); and Chan Thip, Dam Darng, Khian, Khiem, Kiam, Pan-Cham, See, Tamsao and Yang-nu (Thailand).

  
DENSITY

The timber is a Heavy Hardwood with a density of 655-1,155 kg/m3 air dry. 

NATURAL DURABILITY

Graveyard tests on V. cuspidata, a species with an average air dry density of 1,040 kg/m3 indicated that the timber has an average service life of 14 years under natural conditions. The timber is therefore, classified as very durable under Malaysian conditions (Jackson, 1965). Desch (1941) recorded that tests carried out to determine the quality of resak timber indicated that some forms of resak were found to be exceptionally durable (presumably the heavier varieties), ranking with the best forms of balau and giam, and the inferior forms (presumably the lighter varieties) would appear to be at least moderately durable. Burkill (1935) stated that the timber of Cotylelobium is of excellent quality and resistant to Teredo, a type of marine borer. Burgess (1966) however, reported that the timber of Vatica species is not resistant to marine borers and failed within 12 months in Papua New Guinea. In general, resak should not be accepted as resistant to marine borers, but material of Cotylelobium, since it contains silica, is likely to be more resistant than Vatica.

PRESERVATIVE TREATMENT

Generally, preservative treatment is not necessary for Malaysian Heavy Hardwoods including the timber of resak. The timber was quoted as very difficult to treat (Lee and Chu, 1974). In general, the heartwood of the hard and heavy forms of resak are expected to be as difficult to treat as other Malaysian Heavy Hardwoods, e.g. balau, chengal and bitis. It is therefore, unlikely that resak will absorb preservatives of any worthwhile quantity except possibly for the sapwood of the lighter species.

TEXTURE

Texture is fine and even, with straight or only shallowly interlocked grain.

STRENGTH PROPERTIES

The timber falls into Strength Group B (Engku, 1988b) or SG4 (MS 544: Part 2:2001).

Strength Properties of Resak

MACHINING PROPERTIES

It is difficult to resaw and cross-cut in Vatica, while Cotylelobium is moderately easy to slightly difficult to resaw. Planing is easy to slightly difficult and the finished surface is smooth. 

Machining Properties of Resak

AIR DRYING

The timber seasons fairly slowly with very negligible degrade. Only slight cupping, end-checking, splitting and surface-checking are noted during drying. 13 mm thick boards take approximately 3 months to air dry, while 38 mm thick boards take 5 months.

KILN-DRYING

Kiln Schedule B is recommended. Resak, which is hard and heavy as chengal (Neobalanocarpus heimii), needs very slow drying as it is extremely prone to surface-checking. In order to minimise the drying costs and defects, the timber should be air dried to below 30% moisture content before kiln-drying.

Kiln Schedule B  

SHRINKAGE

Shrinkage is high, especially in the tangential direction. Radial shrinkage averages 1.5% while tangential shrinkage averages 3.4%.

DEFECTS

The timber is generally free from any major defects except in some logs, which may contain some heart shakes and some accompanying decay. Compression failure is occasionally present in some logs. No �pin� or �shot� hole borer attack in the heartwood has been observed but the sapwood is liable to powder-post beetle attacks. Surface-checking of the timber is common but not severe. Some resin pockets may be present.

USES

The timber is suitable for all forms of heavy construction, bridges, piling, marine construction, beams, posts, joists, pallets (permanent heavy duty), door and window frames and sills, tool handles (impact), flooring (heavy traffic), power transmission poles, laboratory benches, vehicle bodies (framework and floor boards), railway sleepers, fender supports, staircase (angle blocks, rough brackets, carriage, riser, stringer, tread, bullnose, round end and winder), cooling tower (structural members), telegraphic and power transmission posts and cross arms, heavy duty furniture and wooden containers.

The post Resak first appeared on Creatimber Global.

Introduction
Rengas wood, derived from Gluta spp. and Melanochyla spp., is known for its striking dark red-brown or deep blood-red heartwood with black streaks. It is a prized cabinet wood in Malaysia, commonly referred to as rengas with various epithets across the region.

Key Characteristics

• Density: Medium Hardwood with a density of 640-960 kg/m³ (air-dry).

• Durability: Moderately durable, susceptible to termite attacks.

• Texture: Moderately coarse to fine, with interlocked grain.

• Strength: Classified in Strength Group B (SG4)—strong and suitable for medium construction.

• Machining: Slightly difficult to work with; surfaces can be moderately smooth to rough depending on the process.

Applications

Rengas wood is ideal for:

• Cabinetry and Furniture: Valued for its unique red streaks and rich color.

• Decorative Uses: Suitable for panelling, mouldings, and picture frames.

• Structural Uses: Can be used for beams, posts, rafters, and railway sleepers.

• Ornamental: Great for tool handles, walking sticks, and ornamental pieces.

Note: While the sap is poisonous in fresh timber, seasoned wood is safe to handle.

Handling and Drying

• Nailing: Excellent nailing properties.

• Air Drying: Moderate drying time—13mm boards dry in 2 months, 38mm boards in 5 months.

• Shrinkage: Low shrinkage, making it stable for use.

INTRODUCTION

The Standard Malaysian Name for the timber of Gluta spp. and Melanochyla spp. (Anacardiaceae). Vernacular names applied are usually rengas (Peninsular Malaysia, Sabah and Sarawak) with various epithets. The major species contributing to the timber include Gluta aptera, G. elegans, G. malayana, G. renghas, G. torquata, G. wallichii, G. wrayi; Melanochyla auriculata, M. bracteata, M. caesia and M. fulvinervis. The sapwood is light pink-brown or light brown and is sharply differentiated from the heartwood, which is dark red-brown or deep blood-red, with bands of darker, almost black streaks.

Also known as Rengas (Brunei); Kroeul (Cambodia); Gluta (India); Anga, Poei and Rengas (Indonesia); Mai nam kiang (Laos); Burma Gluta, Chay, Thayet-thitsi and Thitsi (Myanmar); Hekakoro (Papua New Guinea); Lingas (Philippines); and Rak and Rak-ban (Thailand).

DENSITY

The timber is a Medium Hardwood with a density of 640-960 kg/m3 air dry.

NATURAL DURABILITY

The timber is moderately durable, being susceptible to termite attacks.

PRESERVATIVE TREATMENT

The heartwood is extremely difficult to treat with preservatives, while the sapwood is amenable.

TEXTURE

Texture is moderately coarse to fairly fine and even, with interlocked or occasionally straight grain.

STRENGTH PROPERTIES

The timber falls into Strength Group B (Engku, 1988b) or SG4 (MS 544: Part 2: 2001).

Strength Properties of Rengas (G. torquata)

MACHINING PROPERTIES

It is slightly difficult to resaw and cross cut and the planed surface is only moderately smooth.

Machining Properties of Rengas (G. torquata)

NAILING PROPERTY

The nailing property is rated as excellent.

AIR DRYING

The timber seasons moderately slowly, with slight twisting and insect attacks as the main sources of degrade. 13 mm thick boards take approximately 2 months to air dry, while 38 mm thick boards take 5 months.

KILN-DRYING

Kiln Schedule E is recommended.

Kiln Schedule E

SHRINKAGE

Shrinkage is fairly low, radial shrinkage averages 1.0% while tangential shrinkage averages 1.8%.

DEFECTS

The logs of rengas are generally free from defects except for few heart shakes.

USES

Due to the poisonous nature of the sap, the timber is not very often exploited. The seasoned timber, however, is quite safe to handle and is highly prized as a cabinet wood due to its streaky figure and blood-red colour. The timber is also suitable for decorative works, panelling, mouldings, superior joinery, picture frames, flooring, plywood, furniture, railway sleepers, posts, beams, joists, rafters, pallets (permanent light duty), door and window frames and sills (internal use), tool handles (impact), ornamental items and walking sticks. The timber is strong enough for medium construction provided it is protected from termites.

The post Rengas first appeared on Creatimber Global.

Introduction  

Red Balau wood, originating from the Shorea genus, stands out for its deep red-brown color and impressive strength. Known by various local names such as balau merah and red selangan batu, this heavy hardwood is ideal for applications that demand durability and reliability.

—

 Key Characteristics

– Density: Classified as a Heavy Hardwood with a density of 800-880 kg/m³ (air-dry), providing the weight and stability required for robust construction.

– Durability: Moderately durable, with an outdoor lifespan of 2-5 years. It is somewhat resistant to elements but can be susceptible to termites and fungal attacks if left untreated.

– Texture: The wood has a moderately fine to coarse texture with deeply interlocked grain, providing both aesthetic appeal and structural integrity.

– Strength: Red Balau wood falls under Strength Group A, making it a reliable choice for heavy-duty uses.

– Machining: Easy to work with, though planing can vary from smooth to slightly rough, depending on moisture levels.

—

 Applications

Red Balau wood is versatile and highly valued for a range of applications:

– Heavy Construction: Ideal for beams, joists, rafters, and columns due to its robust properties.

– Industrial Uses: Commonly used for pallets, tool handles, and heavy-duty furniture.

– Marine & Vehicle Building: Perfect for keels, keelsons, vehicle frameworks, and floorboards.

– Flooring & Joinery: Recommended for high-traffic flooring, door/window frames, staircases, and cabinets.

—

 Handling Properties

– Nailing: Varies by species; S. guiso has excellent nailing properties, S. ochrophloia is good, and S. kunstleri is rated as poor.

– Air Drying: Moderate shrinkage with slow drying times, taking up to 6 months for thicker boards.

– Kiln Drying: Kiln Schedule G is recommended to ensure efficient drying without compromising the wood’s quality.

—

 Conclusion

Red Balau wood’s strength, durability, and rich color make it an excellent choice for both construction and industrial projects. Its versatility, paired with robust properties, ensures it performs well across applications, from marine and heavy-duty builds to high-traffic flooring and furniture. For a reliable, long-lasting wood solution, Red Balau is a premium choice.

The post Red Balau Wood: Premium Choice for Heavy-Duty Applications first appeared on Creatimber Global.