Red Balau hardwood decking boards installed

Red Balau Decking

A dense Southeast Asian hardwood with warm red-brown tones — excellent durability and value from a non-South American sourcing region.

Janka Hardness

2,700 lbf

Lifespan

40+ years

Fire Rating

Class A

Durability

Class 1-2

Why Choose Red Balau Decking

Red Balau decking offers a compelling combination of density, durability, and value from a sourcing region entirely outside South America. Harvested from the Shorea genus in Southeast Asia (primarily Malaysia and Indonesia), Red Balau provides an excellent hardwood decking option for homeowners and contractors who want geographic diversity in their material sourcing or simply appreciate the species' warm, inviting color and strong performance characteristics.

With a Janka hardness of 2,700 lbf, Red Balau is harder than Tigerwood (2,160), Garapa (1,630), and all domestic hardwoods. It sits firmly in the premium tier of decking species, delivering substantial scratch resistance, structural strength, and a 40+ year outdoor lifespan. The wood naturally resists rot, decay, and insect damage, earning a Class 1-2 durability rating and a Class A fire rating that meets demanding building code requirements.

The color of fresh Red Balau is a warm, uniform red-brown that falls between Cumaru's reddish-brown and Massaranduba's deeper red. This middle-ground color appeals to homeowners who want warmth without the dramatic variation of Tigerwood or the darkness of aged Ipe. Red Balau boards tend to have relatively consistent coloring, creating a cohesive deck surface. As with all hardwoods, the wood will weather to silver-gray if left untreated, or the original red-brown can be preserved with UV-protective oil.

Red Balau is particularly well-suited for residential decks, covered porches, and outdoor living areas where a warm aesthetic and solid performance are both priorities. Its moderate density (58 lbs/ft³) makes it somewhat easier to work with than ultra-dense species like Ipe or Massaranduba, while still providing excellent durability. The species has a long track record in Southeast Asian commercial construction, including boardwalks, bridges, and marine structures.

For homeowners comparing Red Balau to composite alternatives, the choice is clear: Red Balau offers natural beauty, longer lifespan, and better resistance to fading and heat absorption. Against pressure-treated lumber, Red Balau provides three to four times the lifespan without any of the chemical treatments that treated pine requires. Red Balau is harvested from managed forests with established sustainability protocols in Malaysia and Indonesia.

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Red Balau Decking Specifications

Botanical NameShorea spp.
Common NamesRed Balau, Selangan Batu
Janka Hardness2,700 lbf
Density58 lbs/ft³
Durability ClassClass 1-2
Fire RatingClass A (ASTM E84)
Rot ResistanceVery Good
Insect ResistanceVery Good
Expected Lifespan40+ years
Color (Fresh)Warm red-brown
Color (Weathered)Silver-gray patina
Available Thicknesses1x, 5/4, 2x
Available Widths4", 6"
ProfilesPregrooved, Eased Edge (E4E), T&G
OriginSoutheast Asia (Malaysia, Indonesia)

Installation & Maintenance Guide

Red Balau Installation Tips

Red Balau requires pre-drilling for all fasteners. Use stainless steel screws to prevent corrosion. The wood works well with both face-screw and hidden fastener installation methods. Pregrooved boards are available for clip systems. Standard 16" joist spacing is recommended. Allow boards to acclimate before installation.

  • Pre-drilling required for all screw holes
  • 16" on-center joist spacing for standard residential installations
  • Stainless steel fasteners required — no galvanized or zinc-coated
  • Acclimate boards on-site before installation

Maintenance Options

Oil for color: Apply UV-protective oil annually to maintain the natural warm red-brown tones.

Let it gray: No treatment needed — Red Balau will weather to a beautiful silver-gray patina with zero impact on durability.

How Red Balau Compares

Red Balau vs Ipe

Ipe is harder (3,684 vs 2,700 Janka) and longer-lasting (up to 75+ vs 40+ years), but costs more and comes only from South America. Red Balau provides solid premium performance from a Southeast Asian sourcing alternative.

Learn more about Ipe decking

Red Balau vs Cumaru

Cumaru is harder (3,330 vs 2,700 Janka) and lasts longer (50+ vs 40+ years). Both have warm reddish-brown tones. Choose Red Balau for geographic sourcing diversity or Cumaru for maximum South American hardwood value.

Learn more about Cumaru decking

Red Balau vs Tigerwood

Red Balau is harder than Tigerwood (2,700 vs 2,160 Janka) with a more uniform color. Tigerwood offers dramatic visual stripes. Choose based on whether you prefer consistent color (Red Balau) or dramatic pattern (Tigerwood).

Learn more about Tigerwood decking

Red Balau Decking FAQ

Red Balau (Shorea spp.) is a dense tropical hardwood from Southeast Asia (Malaysia, Indonesia). Also called Selangan Batu, it offers 2,700 Janka hardness, warm red-brown color, and a 40+ year outdoor lifespan — a premium decking option from a non-South American sourcing region.

Red Balau comes from Southeast Asia, primarily Malaysia and Indonesia. It's from the Shorea genus, part of the Dipterocarp family that dominates Southeast Asian tropical forests. This geographic origin provides sourcing diversity compared to South American species.

Red Balau is very durable for outdoor use. Its 2,700 Janka hardness and Class 1-2 durability rating provide excellent resistance to rot, decay, and insects for 40+ years without chemical treatment. It also carries a Class A fire rating.

Ipe is harder (3,684 vs 2,700 Janka) and lasts longer (up to 75+ vs 40+ years), but Red Balau costs less and comes from Southeast Asia rather than South America. Red Balau is an excellent premium hardwood that trades some peak performance for better value.

Red Balau has a warm, uniform red-brown color that falls between Cumaru's reddish tones and Massaranduba's deeper red. The relatively consistent coloring creates a cohesive, attractive deck surface.

Red Balau needs no maintenance for structural performance. To maintain the warm red-brown color, apply UV-protective oil annually. Without treatment, it will naturally weather to silver-gray. Clean with a hardwood deck cleaner as needed.

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