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Materials Reference

Chengal

Premium species known for its exceptional natural durability. Considered one of the best for outdoor work and marine construction. Chengal is used for boats, docks, premium decking and jungle power-line poles.

Chengal
Chengal

Neobalanocarpus heimii

Chengal

Premium species known for its exceptional natural durability. Considered one of the best for outdoor work and marine construction. Chengal is used for boats, docks, premium decking and jungle power-line poles.

Chengal (Neobalanocarpus heimii) is considered one of Southeast Asia's finest structural and outdoor hardwoods. Its exceptional EN 350 Class 1 durability rating derives from a combination of naturally occurring resins, high silica content and extreme wood density (900–1,050 kg/m³). This makes chengal the benchmark specification for marine structures, harbour piers, boardwalks and premium garden decking in exposed climates. Structural engineers also specify chengal for bridge components, industrial flooring and heavy-duty outdoor frameworks. The wood is notoriously demanding to machine — carbide tooling required — but this very density guarantees a service life measured in decades rather than years.

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Technical Specifications

Full Species Reference

PropertyValue
Botanical NameNeobalanocarpus heimii
Density (12% MC)Very high kg/m³
Janka Hardness~12,500 N
EN 350 Durability ClassClass 1 — Very Durable
Durability RatingExceptional
Recommended EnvironmentOutdoor / Marine
Primary ApplicationsBoats, docks, premium decking, poles

Where It Is Specified

Applications of Chengal

  • Marine structures & harbour piers
  • Premium outdoor & garden decking
  • Bridge & boardwalk construction
  • Heavy-duty structural framing
  • Jungle power-line poles
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